The sun rises over Dimetrodon as it travels across the landscape of the Middle Permian, spotting Diplocaulus, Titanoptera, a speculative proto-archosauromorph, and Prionosuchus along the way.
The piece 'Morning, when time had no end' was very kindly composed for this animation by the immensely talented Villi-refurinn. Check them out on Bandcamp for more fantastic music!
This one took a lot longer than usual, with life getting in the way and all that. Thank you all sincerely for waiting for so long!
With its bizarre boomerang-shaped skull, Diplocaulus is probably the most iconic ancient amphibian. (It even inspired the design of the pokémon Dragapult!) It was part of the lepospondyls, a diverse collection of early tetrapods mainly found in Europe and North America between the Early Carboniferous and the mid-Permian, about 350-270 million years ago.
But one species hung on a bit longer into the late Permian, about 259-254 million years ago, and this late-surviving lepospondyl was perhaps the oddest of them all.
Diplocaulus minimus was the only lepospondyl known from the supercontinent of Gondwana, found in what is now Morocco in northern Africa. About 70cm long, around half of which was its long tail, it had the distinctive elongated skull of a diplocaulid – but in a bizarrely asymmetrical shape.
The left prong of its skull was long and tapering, but the right was shorter and more rounded. This doesn't seem to have been due to individual deformity or distortion of the fossil material, since more than one skull has been found with the same features, but the reason for such a striking amount of asymmetry in this species is unknown.
Diplocaulids' head shapes are thought to have acted as hydrofoils, providing lift while they were swimming. Perhaps Diplocaulus minimus' much more wonky skull means this species wasn't relying on that hydrodynamic function as much as its relatives, and something else was going on with its ecology.
…Although, that weird head does bear a surprising resemblance to a proposed asymmetric "flying wing" aircraft design from the 1950s, so it might have worked better for underwater flight than it seems at first glance.
An aromantic amphibious dragon! I took traits from a ton of different amphibians, squished them together, and used the aro flag for the color palette since it's aro week :)
This is Dippo! Dippo is a character from an episode of the cartoon Dink the Little Dinosaur. Dippo is supposed to be a diplocaulus, a prehistoric amphibian with a boomerang shaped skull.
I love Dippo because he is the saddest, wettest, most pathetic amphibian I have ever seen.
This is a redraw of this screenshot from the episode which was actually a fun exercise.
Today's Mayleozoic prompt is Diplocaulus! Flat boi...
[ID: Two photos showing a polyclay figurine of a pale green Diplocaulus, an amphibian with a boomerang-shaped head. It's body is flattened and its long, finned tail appears to be undulating, as though it were swimming. The first photo shows it on a stone slab in the shade, while the second shows it sitting among soil and moss. End ID.]
Here are three of my sketchbook pages from 2023, all about extinct animals... Diplocaulus Magnicornis, and Terror Birds!!
If you wanna see all of my sketchbook stuff, as well as early/unposted art, colouring pages, commission streams, and more... please consider checking out my patreon!!
I really like how these interior covers from the print edition my minicomic Broomistega & Thrinaxodon came out.
They depict fantastic Permian fossil beds, and were printed with 4-color risograph (light teal, fluorescent pink, yellow, violet). I “faked” the familiar CMYK printing process by layering the four ink colors to create the browns--that’s why if you look really closely you can see some chromatic aberration where the colors are slightly misaligned.