It's about the arches, not the holes: synapsids

[Halichoeres]

There was a topic like this on STS several months ago, but I think we need one here too. We have several mammal-specific threads, so this is for the OTHER synapsids. I hope people will forgive me for starting a paraphyletic thread.

Synapsids are characterized by a temporal fenestra, but it's not the hole that matters so much as the arch it provides for muscle attachment and hence biting and chewing. The first synapsids were small and, to a first approximation, lizardlike: Archaeothyris and Clepsydrops of the Carboniferous. They belong to a grade of animals called pelycosaurs, which also included things like Edaphosaurus and Dimetrodon. Pelycosaurs went extinct before the end Permian except for the single branch that gave rise to the therapsids. The therapsids included a staggering variety of cynodonts, dicynodonts, dinocephalians, and gorgonopsians, but only a handful of lineages made it into the Triassic. The therapsids gave rise to the mammals proper during the Mesozoic, with the crown mammals appearing during the early Jurassic. All non-mammal therapsids were probably extinct well before the K-Pg.

Except for Dimetrodon, this group is pretty poorly represented as toys, but here's a sampling. Please add your own pics!


Kaiyodo Great Leaps Dimetrodon, Linde Sphenacodon, DinoWaurs Keratocephalus, Kaiyodo Dinotales Lystrosaurus


Wild Safari Inostrancevia, Papo Dimetrodon, Dawn of the Dinosaurs Exaeretodon, Favorite Co Dimetrodon, Dino Riders Placerias, Bullyland Edaphosaurus


Starlux Endothiodon, Jurassic Park Estemmenosuchus, Play Visions Cynognathus, Kaiyodo Dinotales Trochosaurus, Cog Ltd Dicynodon


Bullyland Procynosuchus, Jurassic Park Lycaenops, Starlux Cynognathus


Gimiki's Journey Moschops

[Flaffy]

Nayab/chinasaur placerias?

[RobinGoodfellow]

Sean Cooper's  Estemmenosuchus:



Archinto's custom made Sphenacodon:



( ...Shane Foulkes Gorgonops soon... )

[RobinGoodfellow]

...and DimetrodonS:














( Info here:  https://www.flickr.com/photos/130140542@N03/albums/72157672005535171/with/26563880725/   )

[RobinGoodfellow]

Nayab/chinasaur placerias?

[SBell]

I started that thread on the STS! But I only just realized that the photos no longer work (I had to migrate photos to a different server--I thought I'd caught most of those, but there are a lot in that thread that I need to redo...!

[Silvanusaurus]

I recently saw a totally black Nayab Placerias in a lot on eBay, is that unusual? I've seen the green one around but not a black one before...

[tyrantqueen]

The 2007 Carnegie Dimetrodon is still really good despite its age. One of my favourites along with the Papo.

[Megalosaurus]

I love this creatures.

I recently saw a totally black Nayab Placerias in a lot on eBay, is that unusual? I've seen the green one around but not a black one before...

Never saw that. I have just see a brown one and I suspect it is a repaint. May you share that link to see it?

[Silvanusaurus]

I love this creatures.

I recently saw a totally black Nayab Placerias in a lot on eBay, is that unusual? I've seen the green one around but not a black one before...

Never saw that. I have just see a brown one and I suspect it is a repaint. May you share that link to see it?

I just bought the lot, I've been wanting to get one of the normal ones anyway, so I thought I might take the chance and see if it's a rare one off or something. I'll post pictures when I get it.

[AcroSauroTaurus]

My non-mammal Synapsids

Figures:
Edaphosaurus x2 (need ID'd)
Safari Dinos Toob Dimetrodon (one repainted)
Papo Dimetrodon
China Dimetrodon (needs ID'd)
Glow-in-Dark China Dimetrodon
Various Rubber Dimetrodons

[RobinGoodfellow]

Galileo Hernandez Sphenacodon:




Shane Foulkes Gorgonops:




All models painted by Martin Garratt
( https://www.flickr.com/photos/130140542@N03/albums/72157661032161935 )

[Pachyrhinosaurus]

It's interesting to notice that out of all the dimetrodons, the Invicta is the most accurate as it's one of the oldest.

[BlueKrono]

Galileo Hernandez Sphenacodon:




Shane Foulkes Gorgonops:




All models painted by Martin Garratt
( https://www.flickr.com/photos/130140542@N03/albums/72157661032161935 )

Wow, those are two of the best prehistoric animal models I've ever seen!
Here's my collection of Dimetrodons. There are so many variants of this animal out there. It's been included in dinosaur sets since the very first days of dinosaur toys.

[RobinGoodfellow]

Galileo Hernandez Sphenacodon:

Shane Foulkes Gorgonops:

All models painted by Martin Garratt
( https://www.flickr.com/photos/130140542@N03/albums/72157661032161935 )

Wow, those are two of the best prehistoric animal models I've ever seen!
Here's my collection of Dimetrodons.

Thank you.
If you like pre-dinosaurs animals, here my Flickr Album:
https://flickr.com/photos/130140542@N03/sets/72157659160674694

[BlueKrono]

Galileo Hernandez Sphenacodon:

Shane Foulkes Gorgonops:

All models painted by Martin Garratt
( https://www.flickr.com/photos/130140542@N03/albums/72157661032161935 )

Wow, those are two of the best prehistoric animal models I've ever seen!
Here's my collection of Dimetrodons.

Thank you.
If you like pre-dinosaurs animals, here my Flickr Album:
https://flickr.com/photos/130140542@N03/sets/72157659160674694

Great album! I'll definitely have to pick up that Dan's Koolasuchus!

[BlueKrono]

A few non-Dimetrodons


Dimetrodon screamers

[Halichoeres]

Most of the 2018 crop of synapsids (someone else can add the CollectA Dimetrodon, which I didn't buy).


Safari Dimetrodon


Finally a good Estemmenosuchus, courtesy of CollectA


The first gorgonopsian toy from any company in 7 years, Dinogorgon by Schleich

[Shonisaurus]

Seeing these pictures of Halichoeres and other members of the forum apart from the beauties of Robin is to be welcomed that in general almost all toy dinosaur companies such as Collecta, Safari or Schleich have been launched into the mass production of mammalian reptiles (like me I call them) from the Paleozoic. The synapsids such as dinogorgon or estemmenosuchus were almost unprecedented figures in the toy market of PVC figures and we only knew practically the dimetrodon (figure of synapsid par excellence) and some isolated figure in PVC models such as edaphosaurus.

[Halichoeres]

CollectA mini Estemmenosuchus: