Petrolacosaurus ( Lat. Petrolacosaurus kansensis ) is a type of extinct reptiles that lived during the Carboniferous ( 305.9—303.4 million years ago) on the territory of modern Kansas ( USA ) [1] .
† petrolacosaurus |
Reconstruction |
Scientific classification |
---|
No rank : | Bilateral symmetric |
Family: | † Petrolacosauridae Peabody, 1952 |
Rod: | † Petrolacosaurus Lane, 1945 |
|
International Scientific Name |
---|
Petrolacosaurus kansensis Peabody, 1952 |
Geochronology305.9—303.4 million years | million years | Period | Era | Eon |
---|
2.588 | Even | | | Ka | F but n e R about s about th | 23.03 | Neogene | 66.0 | Paleogene | 145.5 | a piece of chalk | M e s about s about th | 199.6 | Yura | 251 | Triassic | 299 | Permian | P but l e about s about th | 359.2 | Carbon | 416 | Devonian | 443.7 | Silur | 488.3 | Ordovician | 542 | Cambrian | 4570 | Precambrian |
◄ Nowadays◄ Cretaceous-Paleogene extinction◄ Triassic extinction◄ Perm mass extinction◄ Devonian extinction◄ Ordovician-Silurian extinction◄ Cambrian explosion |
---|
|
DescriptionThe length of this lizard-like animal is 40 cm. The head is large and short. The tail is not very long, and the legs are long. Insectoid. Had teeth of 2 types - small sharp and enlarged canine-shaped.
In popular culturePetrolacosaurus is represented in the TV series " Walking with Monsters " as the ancestor of edaphosaurus . In fact, petrolacosaurus was diapside, that is, it could not be ancestral to synapsids.
Notes