# paleoart sciart dinosaurs fossilfriday pseudosuchians aetosaurs tutorial dragon anatomy

Ramarak and the other Skull Crawlers are fossorial Archosaurs with enormous arms and long blunt claws for digging. Their eyes have almost completely atrophied and a set of whiskers and cornified snout dermis has taken their place.

1 25
2020-08-06

I created this tree to explain the different hypotheses of the phylogenetic relationships among avemetatarsalian archosaurs, in particular dinosaurs. I explain which ones I follow in my book and point out alternative hypotheses.

97 356
2020-07-08

musings related to my current research. In living archosaurs epiphyseal cartilages can extend limb bone length from between less than 1% to more than 10%! This has big implications for our modelling of joint kinematics and how we interpet plausible ranges of motion.

45 204
2020-07-04

I like this one from a 2015 paper by Allen et. al. It's not applicable everywhere, especially because of how weird croc coracoids are and due to taxa-specific discrete differences in orgins/insertions, but I think it's one of the best references for the major groups in Archosaurs

3 14
2020-05-07

Always had a tendency to be very weary and try to avoid conclusion jumping but it's finally safe to say birds have the musculature and nerves to have slit pupils therefore not too impossible in other non avian archosaurs.

7 32
2020-02-19

Croc or birb? Since the origin of feathers is still mysterious, there are two alternative approaches to reconstructing early, Triassic archosaurs. These guys are based on Ixalerpeton.

85 367
2019-12-27

Lotosaurus, another oddity of the Triassic. A toothless, beaked, herbivorous and sail-backed Poposauroid pseudosuchian (the croc-line archosaurs) that lived during the Middle Triassic of China. There will be text over the upper side of the image

96 402
2019-11-30

Our new paper describing first fossils of rauisuchian archosaurs from Triassic of southern Africa:

https://t.co/sSpRZ9S7ET

Paper led by Rick Tolchard of , with & Julia Desojo.

17 51
2019-09-18

Before there were ankylosaurs, there were Aetosaurs. The first try at an archosaurs tank. Desmatosuchus is one of the numerous of the Chinless formation, one of the geological formations featured in my in-prep book. Aetosaurs came in all sizes also

77 280
2019-06-24

Had a great week in Moscow studying ankylosaurs and basal archosaurs, and just enough time to do a liitle bit of tourism before we leave

2 50
2019-04-07

Poposauroids are among my favorite lineage within Pseudosuchia (the line of archosaurs related to crocodilians). There were so many interesting forms, among them several bipedal taxa that looked like how people used to think dinosaurs looked like

81 235
2019-04-05

I made a quick hexapod dragon anatomy sheet for all your artisty needs. Its heavily based in archosaurs because archosaurus are the best animals. Please let me know if you have any questions.

218 807
2018-09-11

Every time someone tells me “crocodiles are living fossils, they have never changed in millions of years” I go and reconstruct one of the MANY odd looking pseudosuchians (croc-line archosaurs) that will appear in my book

162 422
2018-04-27