#archosauriformes

[roygattero]

Erythrosuchus africanus (2025 version)

Vector illustration, 2022-2025

[have-you-seen-this-animal]

Gharial?

We've done gharial before but it was in the early days of this blog (only about 100 votes), so I'll do it again :)

Have you seen the gharial (Gavialis gangeticus)?

I have now

Yes, in photos/videos

Yes, irl

I'm not sure

Voting ended onOct 10, 2024

[makairodonx]

Archosaur Art April 2025 Day 1: Archosaurus rossicus, the oldest-known Archosauriform, which lived right at the end of the Permian in what is now European Russia and is closely related to the Early Triassic Proterosuchids

[faunalregion]

[alphynix]

Proterochampsids were a group of Triassic archosauriformes, closely related to the true archosaurs (crocodilians, pterosaurs, and dinosaurs/birds).

Known only from South America between about 242 and 205 million years ago, these reptiles' heads were wide at the back but very narrow along the snout, often with prominent bony bumps and ridges on their skulls, and they had less osteoderm armor on their bodies than other archosauriformes.

They've traditionally been interpreted as very crocodile-like and semi-aquatic, but their long slender limbs and presence in rather arid paleoenvironments suggest they may have been more terrestrial fast-running predators.

Tropidosuchus romeri here lived about 235 million years ago in what is now Argentina. It was one of the smaller proterochampsids, only about 50cm long (1'8"), with just a single row of osteoderms along its back, and had larger and lower-set eyes compared to its relatives.

CT scans of its braincase indicate it had a particularly good sense of smell, and it may have relied mainly on scent to locate prey.

———

NixIllustration.com | Tumblr | Twitter | Patreon

[252mya]

Phytosaurs were Triassic semi-aquatic archosauriformes. They weren't particularly closely related to crocodiles but convergently evolved a similar lifestyle and appearance. Design by Greco Westermann sulc.us/phyto

[confusedhadrosaur]

Day 14:  Proterosuchus fergusi

[pyroraptor42-art]

Grumpy Erythrosuchus