Procynosuchus delaharpeae, a synapsid from the Late Permian (~259-252 mya). Measuring about 60cm long (2′), it was one of the earliest members of the cynodonts, the lineage that would eventually lead to mammals.

Its fossils are mostly known from southern Africa, but similar remains have also been found in Europe and Russia, suggesting it was actually quite widespread across the supercontinent of Pangaea that existed at the time.

It had a long vertically-flattened tail, strong leg muscles, and paddle-like feet – all adaptations that suggest it was a semi-aquatic otter-like animal capable of agile swimming. It also had forward-facing eyes, giving it good binocular vision and depth perception while pursuing fish underwater.


Hey! You might be wondering why I kind of disappeared for a while these past…. many months. Well, wonder no longer– I was working on Earth Before Us: Dinosaur Empire! Pre-orders are now available, if you wanna get in on this action and support my work.

The book follows a kid named Ronnie and her kooky neighbor Miss Lernin as they journey through the three periods of the Mesozoic Era, meeting many magnificent beasts along the way. They meet not only dinosaurs, but pterosaurs, marine reptiles, and even the oft-overlooked insects of the Mesozoic!

The book will be released by Amulet Books (an imprint of Abrams) on August 1st, but you can pre-order it on Amazon now if you don’t feel like waiting around. It’s gonna be a good book! You should get it maybe!!


The Machairodontine Saber-toothed Cat Megantereon falconeri, and the Giant Hyenid Pachycrocuta brevirostris, from the Arabian Pleistocene for the Hall of Natural History in the Sheikh Abdullah Al Salem Cultural Centre, Kuwait.

ghost-hermione  asked:

wait weren't you the "give them feathers you cowards" artist? that's very few feathers...

Gryposaurus didn’t have feathers!

hadrosaurs are very far diverged from theropods (ornithischian vs. saurischian), and we have fantastic skin preservation for multiple species. one specimen, “Leonardo”, is so perfectly fossilized that it’s practically a mummy!

my plea was never to feather all dinosaurs - rather, give them the body covering supported by comparative anatomy & the fossil record. though for most theropods that means a LOT of feathers! here’s a Velociraptor reconstruction by Tom Parker that displays this perfectly


Random prehistoric creatures by Johan Egerkrans. From his books “Första urtidsboken” (First Times), “Alla Tiders Dinosaurier” (All Time Dinosaurs), and the forthcoming “Flygödlor och havsmonster” (Pterosaurs and Sea Monsters).

1) Coelophysis
2) Tanystropheus
3) Hatzegopteryx
4) Umoonasaurus
5) Heterodontosaurus
6) Ceratosaurus watching a passing heard of Apatosaurus
7) Smilodon
8)Titanis walleri

Johan Egerkran’s Official Facebook Page