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Edaphosaurus amidst cordaites - An Edaphosaur among cordaites (Cordaites angulostriatus) 300 million years ago in...

IMAGE number
PIX4661673
Image title
Edaphosaurus amidst cordaites - An Edaphosaur among cordaites (Cordaites angulostriatus) 300 million years ago in Europe. Edaphosaurus was a large herbivore (more than 3m long) living in Permian. A ten-foot-long, 600 pound synapsid of the genus Edaphosaurus boreages in a brackish mangrove-like swamp of gymnosperms of the genus Cordaites 300 million years ago in what is today Western Europe. Like its better-known synapsid cousin Dimetrodon, Edaphosaurus had a large sail on its back supported by elongated neural spines, however unlike Dimetrodon, these spines include numerous short cross bars; while the sail may have served the purpose of both helping to regulate body temperature and as sexual display, the purpose of the cross bars is unknown. Jaw and teeth structure suggests that Edaphosaurus probably dined on both plants and small invertebrates, such as mollusks. Tree-like Cordaites, now extinct, grew on wet ground similar to the Everglades in Florida, numerous fossils of which are now found associated with coal deposits. Also in this image are several examples of extinct seed fern of the genus Neuropteris as well as smaller examples of generic fern that may have been present during the period. Other fauna include two examples of the large dragonfly-like Meganeura, a centipede, and in the foreground a juvenile prehistoric shark of the genus Xenacanthus, its distinctive spine projecting from the back of its head and out of the water
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Photographer
Walter B Myers
Medium
digital
Image description

Edaphosaurus amidst cordaites - An Edaphosaur among cordaites (Cordaites angulostriatus) 300 million years ago in Europe. Edaphosaurus was a large herbivore (more than 3m long) living in Permian. A ten-foot-long, 600 pound synapsid of the genus Edaphosaurus boreages in a brackish mangrove-like swamp of gymnosperms of the genus Cordaites 300 million years ago in what is today Western Europe. Like its better-known synapsid cousin Dimetrodon, Edaphosaurus had a large sail on its back supported by elongated neural spines, however unlike Dimetrodon, these spines include numerous short cross bars; while the sail may have served the purpose of both helping to regulate body temperature and as sexual display, the purpose of the cross bars is unknown. Jaw and teeth structure suggests that Edaphosaurus probably dined on both plants and small invertebrates, such as mollusks. Tree-like Cordaites, now extinct, grew on wet ground similar to the Everglades in Florida, numerous fossils of which are now found associated with coal deposits. Also in this image are several examples of extinct seed fern of the genus Neuropteris as well as smaller examples of generic fern that may have been present during the period. Other fauna include two examples of the large dragonfly-like Meganeura, a centipede, and in the foreground a juvenile prehistoric shark of the genus Xenacanthus, its distinctive spine projecting from the back of its head and out of the water

Photo credit
Photo © Novapix / Bridgeman Images
Image keywords
animal / history of the earth / earth / fauna / permian / illustration / 2012 / synapsid / Novapix / earth / fauna / History of Earth / paleozoic / paleozoic / permian / Synapside / Edaphosaurus

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