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Immagini di 'Ferns' trovate, 481

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Carboniferous Forest - Artist's view of a forest in North America 350 million years ago. The species presented here are Lepidodendron aculeatum (which resemble feathers on long sticks), Sigillaria scutellata, Asteroxylon mackiei (at this scale can be confused with grass), and ferns. A Carboniferous forest of Midwestern North America 350 million years ago featuring Lepidodendron aculeatum (resembling feather dusters on long sticks), Sigillaria scutellata (resembling toilet bowl brushes), Asteroxylon mackiei (at this scale may be mistaken for grass), and ferns. Some Lepidodendron grew as tall as 150 feet. 360 million years ago the Earth entered a period known as the Carboniferous, a 60 million year span remarkable for worldwide high temperatures, high humidity, and the emergence of thousands of new terrestrial plant and animal species. Dense forests of arboreal lycopods covered much of the vast continent of Pangaea. This enormous biomasset eventually became the source for the great bitum

Carboniferous Forest - Artist's view of a forest in North America 350 million years ago. The species presented here are Lepidodendron aculeatum (which resemble feathers on long sticks), Sigillaria scutellata, Asteroxylon mackiei (at this scale can be confused with grass), and ferns. A Carboniferous forest of Midwestern North America 350 million years ago featuring Lepidodendron aculeatum (resembling feather dusters on long sticks), Sigillaria scutellata (resembling toilet bowl brushes), Asteroxylon mackiei (at this scale may be mistaken for grass), and ferns. Some Lepidodendron grew as tall as 150 feet. 360 million years ago the Earth entered a period known as the Carboniferous, a 60 million year span remarkable for worldwide high temperatures, high humidity, and the emergence of thousands of new terrestrial plant and animal species. Dense forests of arboreal lycopods covered much of the vast continent of Pangaea. This enormous biomasset eventually became the source for the great bitum

Walter B Myers

PIX4632896

Cyanotype of a North American fern, Adiantum pedatum, 1853

Cyanotype of a North American fern, Adiantum pedatum, 1853

UIS5065854

The Picture of the Irish House of Commons in 1790 (engraving)

The Picture of the Irish House of Commons in 1790 (engraving)

English School, (19th century)

LIP1623273

Cyanotype of a fern from the Chatsworth Conservatory, 1853

Cyanotype of a fern from the Chatsworth Conservatory, 1853

UIS5065821

Torosaurus - Torosaurs were herbivorous dinosaurs of the cretace, of the same family as the triceratops. Here, a five-ton male is drinking a river. A five ton, 25 foot long male Torosaurus drinks from a river bordered by ferns and Bald Cypress in what is today southeastern Wyoming. Torosaurus was a plant-eating dinosaur from the same family as the better known Triceratops. Torosaurus had one of the largest skulls of any known land animal, reaching over 8 feet in length

Torosaurus - Torosaurs were herbivorous dinosaurs of the cretace, of the same family as the triceratops. Here, a five-ton male is drinking a river. A five ton, 25 foot long male Torosaurus drinks from a river bordered by ferns and Bald Cypress in what is today southeastern Wyoming. Torosaurus was a plant-eating dinosaur from the same family as the better known Triceratops. Torosaurus had one of the largest skulls of any known land animal, reaching over 8 feet in length

Walter B Myers

PIX4662989

Archegosaurus - Archegosaurus in a swamp in Europe 285 million years ago. Archegosaurus was a large, 3m long amphibian living in Permian. Ten-foot-long temnospondyl amphibians of the genus Archegosaurus lounge in an Early Permian swamp 285 million years ago in what is today Western Europe. Also in this image are several varieties of fern including tree-like seed ferns of the genus Alethopteris. Archegosaurus was a large, crocodile-like carnivore that likely fed upon fish and perhaps other amphibians

Archegosaurus - Archegosaurus in a swamp in Europe 285 million years ago. Archegosaurus was a large, 3m long amphibian living in Permian. Ten-foot-long temnospondyl amphibians of the genus Archegosaurus lounge in an Early Permian swamp 285 million years ago in what is today Western Europe. Also in this image are several varieties of fern including tree-like seed ferns of the genus Alethopteris. Archegosaurus was a large, crocodile-like carnivore that likely fed upon fish and perhaps other amphibians

Walter B Myers

PIX4661705

Head of a Goat

Landseer, Edwin (1802-73)

USB1159920

Prestosuchus - Prestosuchus was a 5-metre-long Triassic predator living in Brazil. Prestosuchus had powerful legs that indicate that he was a fast runner. His closest relatives are Saurosuchus and Postosuchus. A 15-foot-long, 500 pound rauisuchian archosaur of the genus Prestosuchus wanders amidst cycads and ferns in swamp 230 million years ago in what is today Brazil. With long powerful legs, sharp teeth and a crocodile-like body, Prestosuchus was probably an ambush predator and likely a fast runner. In the foreground to the Prestosuchus 'left is a foot-long prehistoric amphibian known as a labyrinthodont

Prestosuchus - Prestosuchus was a 5-metre-long Triassic predator living in Brazil. Prestosuchus had powerful legs that indicate that he was a fast runner. His closest relatives are Saurosuchus and Postosuchus. A 15-foot-long, 500 pound rauisuchian archosaur of the genus Prestosuchus wanders amidst cycads and ferns in swamp 230 million years ago in what is today Brazil. With long powerful legs, sharp teeth and a crocodile-like body, Prestosuchus was probably an ambush predator and likely a fast runner. In the foreground to the Prestosuchus 'left is a foot-long prehistoric amphibian known as a labyrinthodont

Walter B Myers

PIX4661803

Postosuchus - Postosuchus was a 5-metre-long, 4-ton Triassic predator living in North America. He is a close relative of the crocodiles we know today. A 12-foot-long, 1,000 pound rauisuchian archosaur of the genus Postosuchus wanders a hilltop 220 million years ago in what is today Texas. Surrounding the Postosuchus are various cycads, ferns, and tree-like Glossopteridales. With a crocodile-like body and tyrannosaurlike head, Postosuchus was likely a fierce apex predator that preyed upon Dicynodonts and other animals smaller than itself, including some of the first dinosaurs

Postosuchus - Postosuchus was a 5-metre-long, 4-ton Triassic predator living in North America. He is a close relative of the crocodiles we know today. A 12-foot-long, 1,000 pound rauisuchian archosaur of the genus Postosuchus wanders a hilltop 220 million years ago in what is today Texas. Surrounding the Postosuchus are various cycads, ferns, and tree-like Glossopteridales. With a crocodile-like body and tyrannosaurlike head, Postosuchus was likely a fierce apex predator that preyed upon Dicynodonts and other animals smaller than itself, including some of the first dinosaurs

Walter B Myers

PIX4661798

Ichthyostega & Rhacophyton - An Ichthyostega emerge water 365 million years ago to the upper Devonian. Half-fish, half-terrestrial animal, the Ichthyostega was about 1 metre long. On the left, one of the first species of fern, Rhacophyton ceratangium. A Late Devonian Ichthyostega emerges from waters of a floodplain 365 million years ago in what is today the Canadian Arctic. On the left is a four - foot - tall Rhacophyton ceratangium, an ancient shrub that is thought to be one of the earliest ferns. On the horizon are more Rhacophyton, along with towering Archaeopteris and Lycopsids in various stages of growth

Ichthyostega & Rhacophyton - An Ichthyostega emerge water 365 million years ago to the upper Devonian. Half-fish, half-terrestrial animal, the Ichthyostega was about 1 metre long. On the left, one of the first species of fern, Rhacophyton ceratangium. A Late Devonian Ichthyostega emerges from waters of a floodplain 365 million years ago in what is today the Canadian Arctic. On the left is a four - foot - tall Rhacophyton ceratangium, an ancient shrub that is thought to be one of the earliest ferns. On the horizon are more Rhacophyton, along with towering Archaeopteris and Lycopsids in various stages of growth

Walter B Myers

PIX4632781

Kannemeyeria grazing - An artist's view of Kannemeyeria 240 million years ago, in South Africa. These missing animals 3 metres long were not dinosaurs but dicynodonts, herbivorous mammalian reptiles (Therapsides) living in Permian. Large dicynodonts of the genus Kannemeyeria graze on ferns 240 million years ago in what is today South Africa. The trees on the right are Glossopteridales while those on the left are Ginkgos. About the size of a modern ox with tusks and a beak for grazing on tough vegetation, Kannemeyeria was one of the first large herbivores of the Triassic era. They won't dinosaurs, rather they are classified as mammal-like reptiles

Kannemeyeria grazing - An artist's view of Kannemeyeria 240 million years ago, in South Africa. These missing animals 3 metres long were not dinosaurs but dicynodonts, herbivorous mammalian reptiles (Therapsides) living in Permian. Large dicynodonts of the genus Kannemeyeria graze on ferns 240 million years ago in what is today South Africa. The trees on the right are Glossopteridales while those on the left are Ginkgos. About the size of a modern ox with tusks and a beak for grazing on tough vegetation, Kannemeyeria was one of the first large herbivores of the Triassic era. They won't dinosaurs, rather they are classified as mammal-like reptiles

Walter B Myers

PIX4661769

Portion of front of 'The Schooner', Douglas, Isle of Man, 1929 (b/w photo)

Portion of front of 'The Schooner', Douglas, Isle of Man, 1929 (b/w photo)

Frowde, John James (1868-1946)

MNX5052786

Jonkeria - Artist view of Jonkeria dinocephals 262 million years ago, in South Africa. These missing animals were not dinosaurs but mammalian reptiles (Therapsides) living in Permian. 12-foot-long 500 pound dinocephalian therapsids of the genus Jonkeria pause in a shallow stream in a dry mid-Permian landscape 262 million years ago in what is today South Africa. Vegetation includes various ferns. Jonkeria was large mammal-like reptile with a stout piglike build. Paleontologists haven't been able to determine whether Jonkeria was an herbivore, carnivore, or possibly like modern pigs an omnivore

Jonkeria - Artist view of Jonkeria dinocephals 262 million years ago, in South Africa. These missing animals were not dinosaurs but mammalian reptiles (Therapsides) living in Permian. 12-foot-long 500 pound dinocephalian therapsids of the genus Jonkeria pause in a shallow stream in a dry mid-Permian landscape 262 million years ago in what is today South Africa. Vegetation includes various ferns. Jonkeria was large mammal-like reptile with a stout piglike build. Paleontologists haven't been able to determine whether Jonkeria was an herbivore, carnivore, or possibly like modern pigs an omnivore

Walter B Myers

PIX4661770

Masiakasaurus - Masiakasaurus (meaning Vicious Lizard “”) is a genus of small theropod dinosaur Abelisauride from Madagascar, measuring about 2 metres and a weight of 30 kg, living at the end of Cretace (75 to 65 million years). Small predatory theropod dinosaurs of the genus Masiakasaurus explores a forest of cypress, ferns and horsetails 70 million years ago in what is today Madagascar.Masiakasaurus was a small-bodied carnivore that grew to about six feet long and weighed up to 200 pounds. Its front teeth were projected forward, giving it a buck toothed appearance, an adaptation that is believed to have aided it in catching fish and other small prey.

Masiakasaurus - Masiakasaurus (meaning Vicious Lizard “”) is a genus of small theropod dinosaur Abelisauride from Madagascar, measuring about 2 metres and a weight of 30 kg, living at the end of Cretace (75 to 65 million years). Small predatory theropod dinosaurs of the genus Masiakasaurus explores a forest of cypress, ferns and horsetails 70 million years ago in what is today Madagascar.Masiakasaurus was a small-bodied carnivore that grew to about six feet long and weighed up to 200 pounds. Its front teeth were projected forward, giving it a buck toothed appearance, an adaptation that is believed to have aided it in catching fish and other small prey.

Walter B Myers

PIX4662683

Carboniferous fire - Carboniferous firestorm - Fire in a forest of ferns, sigillaria (sigillaria), calamites, cordaites and asterophyllites. In the foreground giant invertebrae try to take refuge in water. Fire rages through a prehistoric forest of towering Sigillaria and Cordaites, Asterophyllites, Calamites, and ferns. In the foreground a potpourri of giant Carboniferous invertebrates flee the conflagration, heading for the only real estate not subject to burning: water. On the left is a giant, 3 foot centipede; in the center is a giant Arthropleura, the largest known arthropod ever to walk the earth; on the right is a two - foot - long scorpion, and in between are dozens of prehistoric “” roachoids,””” some taking briefly to the searing air. On the far left submerged in the relative comfort of the water is a Dendrerpeton awaiting the prospect of an easy meal. 300 million years ago the Earth's atmosphere may have held considerably more oxygen than today; the air may have been as much

Carboniferous fire - Carboniferous firestorm - Fire in a forest of ferns, sigillaria (sigillaria), calamites, cordaites and asterophyllites. In the foreground giant invertebrae try to take refuge in water. Fire rages through a prehistoric forest of towering Sigillaria and Cordaites, Asterophyllites, Calamites, and ferns. In the foreground a potpourri of giant Carboniferous invertebrates flee the conflagration, heading for the only real estate not subject to burning: water. On the left is a giant, 3 foot centipede; in the center is a giant Arthropleura, the largest known arthropod ever to walk the earth; on the right is a two - foot - long scorpion, and in between are dozens of prehistoric “” roachoids,””” some taking briefly to the searing air. On the far left submerged in the relative comfort of the water is a Dendrerpeton awaiting the prospect of an easy meal. 300 million years ago the Earth's atmosphere may have held considerably more oxygen than today; the air may have been as much

Walter B Myers

PIX4632902

Doliosauriscus - Doliosauriscus was a fossil carnivorous reptile of the order of Therapsides and the suborder of Dinocephales. He lived in the middle of Permian about 265 million years ago. In the picture, in the background, a dimetrodon. 12-foot-long dinocephalian therapsids of the genus Doliosauriscus face off in a dry mid-permian landscape 265 million years ago in what is today Russia. On the horizon is a synapsid of the genus Dimetrodon. Vegetation includes various ferns and cycads. Similar to its better-known relative Titanophoneus, Doliosauriscus was a carnivore, one of the largest predators of its time with large dagger-like canines in front and sharp incisors and flat molars in back for grinding up flesh

Doliosauriscus - Doliosauriscus was a fossil carnivorous reptile of the order of Therapsides and the suborder of Dinocephales. He lived in the middle of Permian about 265 million years ago. In the picture, in the background, a dimetrodon. 12-foot-long dinocephalian therapsids of the genus Doliosauriscus face off in a dry mid-permian landscape 265 million years ago in what is today Russia. On the horizon is a synapsid of the genus Dimetrodon. Vegetation includes various ferns and cycads. Similar to its better-known relative Titanophoneus, Doliosauriscus was a carnivore, one of the largest predators of its time with large dagger-like canines in front and sharp incisors and flat molars in back for grinding up flesh

Walter B Myers

PIX4661731

The world's most expensive health farm', 26 November 1968

The world's most expensive health farm', 26 November 1968

UIS5082507

Crichtonsaur - Crichtonsaurus and frogs - A cretacian herbivorous dinosaur (Crichtonsaurus) meets a pair of frogs in a forest 95 million years ago. A ten-foot-long Crichtonsaurus crosses paths with a pair of frogs deep within a Cretaceous forest 95 million years ago. The heavily armored Crichtonsaurus was an herbivore and therefore unlikely to have any interest in frogs as food, while the carnivorous frogs are doubtless in search of smaller prey. The forest is populated with various ferns and the conifer-like Wollemi Pine (not a true conifer, rather an Araucariaceae more closely related to the Monkey Puzzle tree). Crichtonsaurus is named after the late American author Michael Crichton whose novels included the dinosaur thriller Jurassic Park

Crichtonsaur - Crichtonsaurus and frogs - A cretacian herbivorous dinosaur (Crichtonsaurus) meets a pair of frogs in a forest 95 million years ago. A ten-foot-long Crichtonsaurus crosses paths with a pair of frogs deep within a Cretaceous forest 95 million years ago. The heavily armored Crichtonsaurus was an herbivore and therefore unlikely to have any interest in frogs as food, while the carnivorous frogs are doubtless in search of smaller prey. The forest is populated with various ferns and the conifer-like Wollemi Pine (not a true conifer, rather an Araucariaceae more closely related to the Monkey Puzzle tree). Crichtonsaurus is named after the late American author Michael Crichton whose novels included the dinosaur thriller Jurassic Park

Walter B Myers

PIX4662802

Camptosaurus - Artist - Camptosaurus (or twisted lezard “”) was a genus of dinosaurs of the order of ornithisdogs. It was up to 6 m tall, weighed about 500 kg and lived in the upper Jurassic and lower cretace (about 160 to 140 million years ago) in England, France and the United States. In the sky fly two pterosaurs. Plant-eating ornithischian dinosaurs of the genus Camptosaurus graze in a forest of cycads and ferns 160 million years ago in what is today Wyoming. In the cloudy sky above a pair of pterosaurs soar by. Adult Camptosaurus grew to 26 feet long, nearly seven feet tall at the hip, and weighed over 1,500 pounds. These dinosaurs had sturdy beaks in addition to closely packed teeth which would have helped them to dine on tough Jurassic vegetation.

Camptosaurus - Artist - Camptosaurus (or twisted lezard “”) was a genus of dinosaurs of the order of ornithisdogs. It was up to 6 m tall, weighed about 500 kg and lived in the upper Jurassic and lower cretace (about 160 to 140 million years ago) in England, France and the United States. In the sky fly two pterosaurs. Plant-eating ornithischian dinosaurs of the genus Camptosaurus graze in a forest of cycads and ferns 160 million years ago in what is today Wyoming. In the cloudy sky above a pair of pterosaurs soar by. Adult Camptosaurus grew to 26 feet long, nearly seven feet tall at the hip, and weighed over 1,500 pounds. These dinosaurs had sturdy beaks in addition to closely packed teeth which would have helped them to dine on tough Jurassic vegetation.

Walter B Myers

PIX4662115

Desmatosuchus - Desmatosuchus is a fossil genus of Archosaurians who lived in the Upper Triassic of Texas. He cotoyed the first dinosaurs, like Coelophysis. It was about 5 metres long and 1.5 metres high. It was one of the largest Aetosaurs. 15-foot-long, 750 pound aetosaurian archosaurs of the genus Desmatosuchus search for edible roots amidst cycads and ferns 230 million years ago in what is today Texas. Armored plates and spikes, with some spikes up to 18 inches long, helped protect this otherwise vulnerable crocodile-like herbivore from the many terrestrial predators of the period including rauisuchian archosaurs like Postosuchus. Desmatosuchus is also notable for its unusual pig‑like head and shovel-like snout which were likely well-suited for uprooting small plants

Desmatosuchus - Desmatosuchus is a fossil genus of Archosaurians who lived in the Upper Triassic of Texas. He cotoyed the first dinosaurs, like Coelophysis. It was about 5 metres long and 1.5 metres high. It was one of the largest Aetosaurs. 15-foot-long, 750 pound aetosaurian archosaurs of the genus Desmatosuchus search for edible roots amidst cycads and ferns 230 million years ago in what is today Texas. Armored plates and spikes, with some spikes up to 18 inches long, helped protect this otherwise vulnerable crocodile-like herbivore from the many terrestrial predators of the period including rauisuchian archosaurs like Postosuchus. Desmatosuchus is also notable for its unusual pig‑like head and shovel-like snout which were likely well-suited for uprooting small plants

Walter B Myers

PIX4661874

Lycaenops - Lycaenops is a genus of Gorgonopsian, that is, a therapside (mammalian reptile) that lived 270 million years ago, during the second part of Permian. Its name comes from the Greek and means “wolf face”. It was about 1 metre long. A three-foot-long, 35 pound carnivorous therapsid (mammal-like reptile) of the genus Lycaenops wanders a mountainous Mid-Permian landscape 270 million years ago in what is today South Africa. Vegetation includes various ferns forming ground cover and a large cycad. While reptilian in origin, Lycaenops more resembled a modern wolf with a long and slender skull, wolf-like fangs, and long legs held close to its body which probably enabled it to out-run the small reptiles and dicynodonts it dined on

Lycaenops - Lycaenops is a genus of Gorgonopsian, that is, a therapside (mammalian reptile) that lived 270 million years ago, during the second part of Permian. Its name comes from the Greek and means “wolf face”. It was about 1 metre long. A three-foot-long, 35 pound carnivorous therapsid (mammal-like reptile) of the genus Lycaenops wanders a mountainous Mid-Permian landscape 270 million years ago in what is today South Africa. Vegetation includes various ferns forming ground cover and a large cycad. While reptilian in origin, Lycaenops more resembled a modern wolf with a long and slender skull, wolf-like fangs, and long legs held close to its body which probably enabled it to out-run the small reptiles and dicynodonts it dined on

Walter B Myers

PIX4661737

Tyrannosaurus rex and Purgatorius - A seven-ton Tyrannosaurus in a cretacious forest 68 million years ago. A Purgatorius is watching his way. Purgatorius is the name of a genus of four fossil species considered to be the oldest representatives of primates (proto-primates). A 40 foot long, seven ton coelurosaurian theropod dinosaur of the species Tyrannosaurus rex wanders among oak trees and ground ferns 68 million years ago on a Cretaceous island continent known as Laramidia in what is today the western United States.This example of Tyrannosaurus rex hosts fur-like downy feathers on its head, back and along the top of its tail. While it's not known whether Tyrannosaurus rex was feathered, other tyrannosaur fossils have shown tantalizing evidence of them.On the lower left is a rodent-size proto-primate of the genus Purgatorius, and in the lower middle is an amphibious tetrapod of the family Salamandridae

Tyrannosaurus rex and Purgatorius - A seven-ton Tyrannosaurus in a cretacious forest 68 million years ago. A Purgatorius is watching his way. Purgatorius is the name of a genus of four fossil species considered to be the oldest representatives of primates (proto-primates). A 40 foot long, seven ton coelurosaurian theropod dinosaur of the species Tyrannosaurus rex wanders among oak trees and ground ferns 68 million years ago on a Cretaceous island continent known as Laramidia in what is today the western United States.This example of Tyrannosaurus rex hosts fur-like downy feathers on its head, back and along the top of its tail. While it's not known whether Tyrannosaurus rex was feathered, other tyrannosaur fossils have shown tantalizing evidence of them.On the lower left is a rodent-size proto-primate of the genus Purgatorius, and in the lower middle is an amphibious tetrapod of the family Salamandridae

Walter B Myers

PIX4663670

Ichthyostega - Devonian tetrapods - View of atist depicting two Ichthyostega, tetrapods, 385 million years ago, to the upper Devonian. Half-fish, half-terrestrial animal, the Ichthyostega was about 1 metre long. Between them are represented in the water several trilobites and in the background a Bothriolepis. The vegetation consists mainly of ferns and archaeopteris, considered the first trees. A pair of four - limbed, Upper Devonian vertebrate animals of the genus Ichthyostega confront one another 365 million years ago at the edge of a freshwater pond. Basically half fish, half land animal, these tetrapods are each about three feet long. Between them in the water are several marine arthropods known as trilobites. Further beyond in the water is a 12 inch long Bothriolepis. Most of the plant life is varieties of fern, including the tall trees known as Archaeopteris

Ichthyostega - Devonian tetrapods - View of atist depicting two Ichthyostega, tetrapods, 385 million years ago, to the upper Devonian. Half-fish, half-terrestrial animal, the Ichthyostega was about 1 metre long. Between them are represented in the water several trilobites and in the background a Bothriolepis. The vegetation consists mainly of ferns and archaeopteris, considered the first trees. A pair of four - limbed, Upper Devonian vertebrate animals of the genus Ichthyostega confront one another 365 million years ago at the edge of a freshwater pond. Basically half fish, half land animal, these tetrapods are each about three feet long. Between them in the water are several marine arthropods known as trilobites. Further beyond in the water is a 12 inch long Bothriolepis. Most of the plant life is varieties of fern, including the tall trees known as Archaeopteris

Walter B Myers

PIX4632784

Dimetrodon among Alethopteris - Dimetrodon among Alethopteris - Artist's view of a dimetrodon among seed ferns (Alethopteris). Dimetrodon is a mammalian reptile (Therapside), carnivore living in Permian. Dimetrodon was the apex predator of its time and likely had few enemies save for other Dimetrodon. They came as large as 11 feet long, 4 feet tall, and weighing as much as 300 pounds. Their reptilian hide, a relative novelty for that period, ensured their survival out of water. The large sail may have helped them to regulate body temperature, a survival advantage during the extremes of hot and cold during the Early Permian. Given that Dimetrodon is more closely related to mammals than dinosaurs, it could be that our own body's ability to regulate temperature had its origin in this ancient beast. Alethopteris was a seed fern that populated much of the world during the Carboniferous and Early Permian periods. Long extinct, fossilized leaves from the Alethopteris are commonly found today

Dimetrodon among Alethopteris - Dimetrodon among Alethopteris - Artist's view of a dimetrodon among seed ferns (Alethopteris). Dimetrodon is a mammalian reptile (Therapside), carnivore living in Permian. Dimetrodon was the apex predator of its time and likely had few enemies save for other Dimetrodon. They came as large as 11 feet long, 4 feet tall, and weighing as much as 300 pounds. Their reptilian hide, a relative novelty for that period, ensured their survival out of water. The large sail may have helped them to regulate body temperature, a survival advantage during the extremes of hot and cold during the Early Permian. Given that Dimetrodon is more closely related to mammals than dinosaurs, it could be that our own body's ability to regulate temperature had its origin in this ancient beast. Alethopteris was a seed fern that populated much of the world during the Carboniferous and Early Permian periods. Long extinct, fossilized leaves from the Alethopteris are commonly found today

Walter B Myers

PIX4661655

Cotylorhynchus - Cotylorhynchus was a large mammalian reptile (Synapside, Pelycosaur) living herbivorous from early Permian to mid-Permian (299 to 265 million years). They were the largest terrestrial animals of their time, measuring 6 metres long and weighing two tons. Giant, 20-foot-long and one-ton synapsids of the genus Cotylorhynchus forage in an Early Permian swamp 275 million years ago in what is today North America. Also in this image on the lower left is a 3-foot long lepospondyl amphibian of the genus Diplocaulus. Vegetation includes ferns and horsetails in the foreground and on the horizon is a forest of ginkgos. Cotylorhynchus is the largest known non-mammalian synapsid and was the largest land animal of its time. An herbivore, Cotylorhynchus had a massive barrel-shaped body and limbs with a relatively small head, making it perhaps one of the most unattractive land animals to have ever walked the Earth. Standing about 6 feet tall at the shoulder Cotylorhynchus probably had

Cotylorhynchus - Cotylorhynchus was a large mammalian reptile (Synapside, Pelycosaur) living herbivorous from early Permian to mid-Permian (299 to 265 million years). They were the largest terrestrial animals of their time, measuring 6 metres long and weighing two tons. Giant, 20-foot-long and one-ton synapsids of the genus Cotylorhynchus forage in an Early Permian swamp 275 million years ago in what is today North America. Also in this image on the lower left is a 3-foot long lepospondyl amphibian of the genus Diplocaulus. Vegetation includes ferns and horsetails in the foreground and on the horizon is a forest of ginkgos. Cotylorhynchus is the largest known non-mammalian synapsid and was the largest land animal of its time. An herbivore, Cotylorhynchus had a massive barrel-shaped body and limbs with a relatively small head, making it perhaps one of the most unattractive land animals to have ever walked the Earth. Standing about 6 feet tall at the shoulder Cotylorhynchus probably had

Walter B Myers

PIX4661707

Eryops - Close to modern crocodiles, two Eryops, giant prehistoric amphibians evolute in a carboniferous marsh about 300 million years ago. With a length of up to two metres, Eryops was one of the greatest predators of his time. Also visible in the picture, lower right, is an amphibian (Ophiderpeton) and a Meganeura in flight. Resembling modern crocodiles, two giant prehistoric amphibians from the genus Eryops dominate a Carboniferous swamp 300 million years ago in what is today North America. At six feet long and 200 pounds, Eryops was one of the largest predators of its time. It probably spent most of its time in the water, and like modern crocodiles probably fed on fish and other swimming vertebrates. Also in this image, on the lower right is a snake - like, legless amphibian from the genus Ophiderpeton. Flying overhead and resembling a giant dragonfly is a prehistoric insect from the genus Meganeura. The tree - like plants making up the surrounding forest include Sigillaria scutell

Eryops - Close to modern crocodiles, two Eryops, giant prehistoric amphibians evolute in a carboniferous marsh about 300 million years ago. With a length of up to two metres, Eryops was one of the greatest predators of his time. Also visible in the picture, lower right, is an amphibian (Ophiderpeton) and a Meganeura in flight. Resembling modern crocodiles, two giant prehistoric amphibians from the genus Eryops dominate a Carboniferous swamp 300 million years ago in what is today North America. At six feet long and 200 pounds, Eryops was one of the largest predators of its time. It probably spent most of its time in the water, and like modern crocodiles probably fed on fish and other swimming vertebrates. Also in this image, on the lower right is a snake - like, legless amphibian from the genus Ophiderpeton. Flying overhead and resembling a giant dragonfly is a prehistoric insect from the genus Meganeura. The tree - like plants making up the surrounding forest include Sigillaria scutell

Walter B Myers

PIX4632864

Ichthyostega - View of an Ichthyostega 365 million years ago at the upper Devonian. Half-fish, half-terrestrial animal, the Ichthyostega was about 1 metre long. On the left, one of the first species of fern, Rhacophyton ceratangium. In the foreground, prehistoric arthropods (diplopods and cockroaches). A close - up of a three foot long Late Devonian Ichthyostega 365 million years ago in what is today the Canadian Arctic. Flanking the Ichthyostega are Rhacophyton ceratangium, ancient shrubs that are thought to be one of the earliest ferns. The reddish fruit - like nodules attached to the fronds on the right are sporangia, enclosures in which spores are formed. The large tree - like trunk on the far left is the base of a young Archaeopteris. In the foreground are prehistoric arthropods - - a millipede on the left and on the right cockroaches on trunk of a decaying Lycopsid. Arthropods had been walking the Earth for 40 million years before vertebrates like Ichthyostega began venturing ash

Ichthyostega - View of an Ichthyostega 365 million years ago at the upper Devonian. Half-fish, half-terrestrial animal, the Ichthyostega was about 1 metre long. On the left, one of the first species of fern, Rhacophyton ceratangium. In the foreground, prehistoric arthropods (diplopods and cockroaches). A close - up of a three foot long Late Devonian Ichthyostega 365 million years ago in what is today the Canadian Arctic. Flanking the Ichthyostega are Rhacophyton ceratangium, ancient shrubs that are thought to be one of the earliest ferns. The reddish fruit - like nodules attached to the fronds on the right are sporangia, enclosures in which spores are formed. The large tree - like trunk on the far left is the base of a young Archaeopteris. In the foreground are prehistoric arthropods - - a millipede on the left and on the right cockroaches on trunk of a decaying Lycopsid. Arthropods had been walking the Earth for 40 million years before vertebrates like Ichthyostega began venturing ash

Walter B Myers

PIX4632814

Tanystropheus - Two Tanystropheus, six-metre-long marine reptiles, swim in a bay in China 230 million years ago. A pair of 20-foot-long, 300 pound reptiles of the genus Tanystropheus swim in an ocean bay 230 million years ago in what is today China. On the shore are a pair of 6-foot-long bipedal basal saurischian dinosaurs and beyond them on the horizon are 60-foot-tall araucarians, an ancient family of coniferous trees. Horsetails and ferns flourish near the water. Tanystropheus was not a dinosaur, rather it was an ancient marine reptile, an archosaur, that hunted ocean shores at a time when true dinosaurs were only making their first appearance on land. Tanystropheus was likely a fish-eater due to its long, narrow snout and sharp interlocking teeth typical of marine predators. Tanystropheus had an extraordinarily long neck, as long as its body and tail combined, though with only ten vertebrae it was likely not very flexible. Here Tanystropheus are shown extending their head and necks

Tanystropheus - Two Tanystropheus, six-metre-long marine reptiles, swim in a bay in China 230 million years ago. A pair of 20-foot-long, 300 pound reptiles of the genus Tanystropheus swim in an ocean bay 230 million years ago in what is today China. On the shore are a pair of 6-foot-long bipedal basal saurischian dinosaurs and beyond them on the horizon are 60-foot-tall araucarians, an ancient family of coniferous trees. Horsetails and ferns flourish near the water. Tanystropheus was not a dinosaur, rather it was an ancient marine reptile, an archosaur, that hunted ocean shores at a time when true dinosaurs were only making their first appearance on land. Tanystropheus was likely a fish-eater due to its long, narrow snout and sharp interlocking teeth typical of marine predators. Tanystropheus had an extraordinarily long neck, as long as its body and tail combined, though with only ten vertebrae it was likely not very flexible. Here Tanystropheus are shown extending their head and necks

Walter B Myers

PIX4661932

Eogyrinus - Eogyrinus was one of the largest tetrapods of Carbonifere. It could reach 4.6m in length. His fossils were found in England. He was part of the Anthracosaur amphibian group that survived as far as Permian. It is believed that these amphibians were the ancestors of the group from which the reptiles were derived. In the background, a Meganeura, a giant dragonfly whose wingspan could exceed 80 cm. A 15 foot long, 200 pound prehistoric amphibian from the genus Eogyrinus swims down a Carboniferous tributary 300 million years ago in what is today western Europe. Further up the tributary another Eogyrinus prepares to enter the water. Eogyrinus was one of the largest predators of its time, and perhaps the largest of the family Eogyrinidae. It probably spent most of its time in the water, and like modern crocodiles probably fed on fish and other swimming vertebrates. Also in this image, on the upper left on the trunk of a Sigillaria scutellata is a giant millipede and cockroach. Fly

Eogyrinus - Eogyrinus was one of the largest tetrapods of Carbonifere. It could reach 4.6m in length. His fossils were found in England. He was part of the Anthracosaur amphibian group that survived as far as Permian. It is believed that these amphibians were the ancestors of the group from which the reptiles were derived. In the background, a Meganeura, a giant dragonfly whose wingspan could exceed 80 cm. A 15 foot long, 200 pound prehistoric amphibian from the genus Eogyrinus swims down a Carboniferous tributary 300 million years ago in what is today western Europe. Further up the tributary another Eogyrinus prepares to enter the water. Eogyrinus was one of the largest predators of its time, and perhaps the largest of the family Eogyrinidae. It probably spent most of its time in the water, and like modern crocodiles probably fed on fish and other swimming vertebrates. Also in this image, on the upper left on the trunk of a Sigillaria scutellata is a giant millipede and cockroach. Fly

Walter B Myers

PIX4632823

Lambeosaurs - Lambeosaurus riverside - A six-ton male lambeosaur (lambeosaurus) rises from a potential threat. In the background a female and her juvenile drink the water of the river. The lambeosaurs were herbivorous dinosaurs of the cretace. In this scene evoking the landscape of Montana in the United States, 75 million years ago, are also depicted now extinct Tremskya ferns as well as flowering magnolias similar to those we know today. Note also the presence of some birds. In a scene 75 million years ago from what's now Montana, a six ton male Lambeosaurus rears onto its massive hind legs in response to a possible threat, while a female and juvenile Lambeosaurus drink near the river's edge. Lambeosaurus was a plant-eating dinosaur known for its distinctive hollow cranial crest, which in the best-known species resembled a hatchet. The purpose of the crest is unknown. Also featured here are Late Cretaceous Period flora including the now extinct tree fern Tempskya and species of flower

Lambeosaurs - Lambeosaurus riverside - A six-ton male lambeosaur (lambeosaurus) rises from a potential threat. In the background a female and her juvenile drink the water of the river. The lambeosaurs were herbivorous dinosaurs of the cretace. In this scene evoking the landscape of Montana in the United States, 75 million years ago, are also depicted now extinct Tremskya ferns as well as flowering magnolias similar to those we know today. Note also the presence of some birds. In a scene 75 million years ago from what's now Montana, a six ton male Lambeosaurus rears onto its massive hind legs in response to a possible threat, while a female and juvenile Lambeosaurus drink near the river's edge. Lambeosaurus was a plant-eating dinosaur known for its distinctive hollow cranial crest, which in the best-known species resembled a hatchet. The purpose of the crest is unknown. Also featured here are Late Cretaceous Period flora including the now extinct tree fern Tempskya and species of flower

Walter B Myers

PIX4662828

TRH's Duke and Duchess of York Cruise in HMS 'Ophir' - March to November 1901. Plate 88, A crowd of people surrounding an Australian Aboriginal archway., 1901 (paper, photographic reproduction)

TRH's Duke and Duchess of York Cruise in HMS 'Ophir' - March to November 1901. Plate 88, A crowd of people surrounding an Australian Aboriginal archway., 1901 (paper, photographic reproduction)

Unknown Artist, (20th century)

MMM7342444

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