Fossil skull of Cynognathus crateronotus. Cynognathus is an extinct genus of large-bodied cynodont therapsid that lived in the Early and Middle Triassic. It is known from a single species, Cynognathus crateronotus. Cynognathus was a meter-long predator closely related to mammals and had an almost worldwide distribution. Fossils have so far been recovered from South Africa, South America, China and Antarctica.

Fossil skull of Cynognathus crateronotus. Cynognathus is an extinct genus of large-bodied cynodont therapsid that lived in the Early and Middle Triassic. It is known from a single species, Cynognathus crateronotus. Cynognathus was a meter-long predator closely related to mammals and had an almost worldwide distribution. Fossils have so far been recovered from South Africa, South America, China and Antarctica.

Art illustration - Prehistoric Mammals - Cynognathus: ("dog jaw") is sort represented by a unique species of therapsid (mammal-like reptiles), who lived middle and late Triassic period (between 245 and 208 million years). It measured approximately 1 meter. Its fossils have been found in South Africa, Argentina, China and Antarctica.

Art illustration - Prehistoric Mammals - Cynognathus: ("dog jaw") is sort represented by a unique species of therapsid (mammal-like reptiles), who lived middle and late Triassic period (between 245 and 208 million years). It measured approximately 1 meter. Its fossils have been found in South Africa, Argentina, China and Antarctica.

Cynognathus 242-240 million yers ago Period: Early-Mid Triassic (Spathian-Anisian) : South Africa (Karoo region), Lesotho, Argentina, Antarctica, China

Cynognathus 242-240 million yers ago Period: Early-Mid Triassic (Spathian-Anisian) : South Africa (Karoo region), Lesotho, Argentina, Antarctica, China

Carnotaurus is a genus of large theropod dinosaur that lived in South America during the Late Cretaceous period, between about 72 and 69.9 million years ago. The only species is Carnotaurus sastrei.

fernanda castano on

Carnotaurus is a genus of large theropod dinosaur that lived in South America during the Late Cretaceous period, between about 72 and 69.9 million years ago. The only species is Carnotaurus sastrei.

@NHMdinolab - Fabulous Erythrosaurus skull from the Triassic of South Africa @WitsUniversity #fossilfriday

NHMdinolab on

@NHMdinolab - Fabulous Erythrosaurus skull from the Triassic of South Africa @WitsUniversity #fossilfriday

Aulacephalodon peavoti, Permian dicynodont from the Karoo, South Africa, at the Field Museum, Chicago, IL | Flickr - Photo Sharing!

Aulacephalodon peavoti, Permian dicynodont from the Karoo, South Africa, at the Field Museum, Chicago, IL | Flickr - Photo Sharing!

Eurypterous fossil. Some of these can be up to 7ft long.

Eurypterous fossil. Some of these can be up to 7ft long.

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