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Sphenacodon was medium-large carnivorous synapsid named in the late 19th century. It lends its generic name to the family to which it belongs; the Sphenacodontidae, which the famous Dimetrodon is also a part of. Sphenacodon lasted from the Late Carboniferous to the Early Permian.

24 121
2022-02-14

Yeah, I'm a fan of sausage dogs. What can I say. Skeletal by the wonderful Scott Hartman was a very useful reference for this, I've never drawn synapsids before.

276 1380
2022-01-26

Reminds me of that one bully dinosaur from the land before time sequel lol or one of those uncanny valley transitional synapsids

0 1
2022-01-26

Little Ianthasaurus was one of the earliest Synapsids; a diminutive member of the Edaphosauridae, from the Late Carboniferous. Unlike its larger later cousins, Ianthasaurus was more lightly built, and had pointed, peg-like teeth that were better adapted for feeding on arthropods.

31 127
2022-01-24

What about some Hisunian fossils?
Meet Sinatiny and Ferosuchus based on two synapsid: Inastrocevia and Estemmenosuchus.

0 2
2022-01-23

Just wanted to show these cuties I designed for a world I am building based on a dunkleosteus, a dilophosaurus, a velociraptor and a desmatosuchus :D
The dunkleosteus-like is an amphibian but the others are mammal-like reptiles like synapsids

1 3
2022-01-18

Some synapsids I did for a good measure

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2022-01-04

Synapsids. Quick drawings in different style from me, just for fun. Merry Christmas 😊

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2021-12-26

Tapinocaninus is a large herbivorous dinocephalian well known by a complete skull, partial limb remains and the most complete and articulated vertebra spine on a tapinocephalid, including the caudal vertebra showing the short size of these synapsid tails.

24 148
2021-12-19

. and colleagues report a brand new synapsid from the latest Carboniferous, which seems to fall right at the therapsid-sphenacodontid split. Evidence for ecomorphological diversity and heterodonty originating very early in the mammal linage

https://t.co/1DJY6Y9YF3

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2021-12-16

Moschops capensis was a synapsid that lived 260 million years ago & stood at 2.7 metres tall.

(Credit Mark Witton)

63 455
2021-12-03

Ya'll I hope the Dimetrodon makes it in JWD! It's one of the most known Synapsids comparing to Lystrosaurus! I wonder if there will be a fight between Lystrosaurus and Dimetrodon, how amazing would that be? I really do hope it isn't as rushed as the last one did.

1 4
2021-10-09

I finally found a muscle reconstruction of a therocephalian head and now I'm even more confused. Is there really nothing else connected to the posterior third of the mandible? Just bone and a big gaping hole? Please enlighten me, oh wise synapsid experts!

11 131
2021-10-03

Little update.
While many pointed out the similaritiy to some old toys and a certain kaiju, one of my first comparisons was with the weird Triassic synapsid Protuberum.

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2021-09-24

7 years difference between these 2 artworks! ☀️

"Synapsid Sunrise"
Watercolor on paper
2013

"Daydream Dimetrodon"
Ink on paper + digital color
2020

3 11
2021-09-23

day 2
We are going for a little parade of the dominant jurassic synapsids that reing in a timeline where the archosaurs didn't became a thing and the triassic ended less destructive.

31 186
2021-09-03

Since synapsid won out over all other options, the last launch promo for my upcoming Patreon is Dimetro-done!

More info coming September 1st!

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2021-08-29