#cynodonts

[dougdimmadodo]

May’s Fossil of the Month - Thrinaxodon (Thrinaxodon liorhinus)

Family: Thrinaxodon Family (Thrinaxodontidae)

Time Period: Early Triassic (251-247 Million Years Ago) 

At the end of the Permian period around 251 million years ago, the earth experienced the most extreme extinction event in its history (known as the Permian-Triassic Extinction Event or “The Great Dying”,) in which some 70% of terrestrial species and 81% of marine species were driven to extinction. As such, the period immediately following the Permian, the early Triassic, was a period of slow recovery as the descendants of the few survivors of the Great Dying began to adapt and diversify to fill the ecological niches left empty by the extinction of their previous occupants. Thrinaxodon liorhinus was one such survivor; a small (roughly 50cm/1.6 feet in length) species of cynodont synapsid (making it a close relative of mammals, but not a mammal itself), it inhabited what is now southern Africa and northern Antarctica (which were fused as part of a single landmass at the time) in the period immediately following the great dying, and was seemingly among the largest and most common carnivores of its time. Thrinaxodon’s survival was likely enabled at least in part due to its lifestyle; the discovery of individuals fossilized in the remains of burrows show that Thrinaxodon, like many similarly-sized mammals today, was a burrower, and the presence of distinct divisions on its spine to aid in flexibility suggests that, like many burrowing mammals and reptiles today, it may have possessed the ability to travel deeper underground and undergo hibernation or aestivation in order to endure prolonged periods of harsh weather conditions and resource scarcity. In life Thrinaxodon would have likely appeared somewhere between a large lizard and a small dog, with its leg bones and joints suggesting that it stood in a “semi-sprawling” posture mid-way between the belly-to-the-ground sprawling of most lizards and the elevated posture of most mammals, while its dog-like skull and sharp-tipped teeth (including prominent canines on both the upper and lower jaw) suggest that it was likely carnivorous, feeding on insects and/or smaller vertebrates. The discovery of the remains of several Thrinaxodon individuals, sometimes including juveniles, preserved in close proximity to one another suggests that members of this species likely provided parental care and may have also been social, and one unusual but extremely famous fossil burrow containing both an adult Thrinaxodon and an injured Broomistega putterilli (a small species of superficially salamander-like amphibian) showing puncture wounds from teeth too large to belong to the burrow’s owner suggests that, like the Gopher Tortoise and Giant Armadillo today, Thrinaxodon may have been a habitat engineer, with its burrows providing shelter for other species of animal (although it is also possible that the Broomistega had been washed into the burrow during a flood that killed both animals, or that the Thrinaxodon had stolen the injured Broomistega from the larger carnivore that wounded it.)

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Image Sources:  https://commons.wikimedia.org/wiki/File:Thrinaxodon_liorhinus_BP_1_7199.jpg

and

https://www.pbs.org/video/the-oddest-couple-in-the-fossil-record-rcehau/

#thrinaxodon #thrinaxodon liorhinus #synapsid #Synapsids #non-mammalian synapsids #cynodont #cynodonts #zoology #biology #paleontology #paleobiology #animal #animals #wildlife #prehistoric wildlife #prehistoric animals #fossil vertebrates

[antiqueanimals]

The World of Dinosaurs. Written by L. B. Halstead. 1979.

Internet Archive

#prehistoric #prehistoric reptiles #kuehneosaurus #clevosaurus #synapsids #therapsids #cynodonts #morganucodon

[volley-ball-101]

OFFICAL list of sexy people traits that only the SEXIEST people posses. Not up for discussion.

#gahaahhahahahhah #synapsids #paleontology #cynodonts #morganucodon #dimetroodon #thermoregulation #pussy magnet

[netmassimo]

An article published in the journal "Scientific Reports" reports the identification of a new species of cynodont that lived about 220 million years ago, in the Triassic period, in today's Argentina. A team of researchers named it Tessellatia bonapartei after examining a partial skull using an unusual neutron tomography technique after a classic X-ray tomography gave limited results due to the high presence of iron in the rock. The researchers' effort paid off because some characteristics suggest a rather close relationship with mammals, which are likely descended from a single group of cynodonts.

#paleontology #fossils #Triassic #cynodonts #Tessellatia bonapartei

[toadalled]

The Moonbearer

#dimetrodon #synapsid #comes with cynodont version as well #adoptable #custom design #offer #auction

[thylacines-toybox]

Jumper weather for dogs! (zero actual dogs)

#thylacine #Rosemary the thylacine #gorgonops #thrinaxodon #cynodont #synapsid #toy with accessories #outdoor photo #fake dogs are some of my fave types of animal

[vickysaurus]

The evolution of mammals from therapsids in the late Permian and early Triassic: a dicynodont (Lystrosaurus), a gorgonopsid (Rubidgea), and a cynodont (Chiniquodon).

#therapsid #gorgonopsid #dicynodont #cynodont #rubidgea #lystrosaurus #chiniquodon #permian #triassic #palaeoblr

[vickysaurus-art]

A recent series of volcanic eruptions causes the Sun to rise in astonishing colours over the vast Pangaean deserts. An Inostrancevia family gets ready for the day, the cubs playing with everything in sight, from their mother to a very dismayed Dvinia. A little way away, a Vivaxosaurus browses a shrub for breakfast.

#inostrancevia #dvinia #vicaxosaurus #gorgonopsid #therapsid #synapsid #cynodont #dicynodont #permian #paleoart #my art #desert #red #the great dying #honestly the volcanism is just an excuse i felt like going ham with my reds on a desert #the extinction took a very long time btw all of these animals will be fine during their own lifetimes #palaeoblr

[roygattero]

Ischigualasto Formation Ink Illustration Series #2:

a probainognathid cynodont is NOT happy with his nap intrusion.

#paleoart #triassic #illustration #ischigualasto formation #cynodont #probainognathidae #probainognathia #cynodontia #beetles #coleoptera #ink #ink illustration #ischigualasto formation ink illustration series

[ognimdo2002]

Tropical Diploterro – Regal Grass Mover

Tropical Diploterro (Pseudosauropodus tropicalis) is the fictional species of cynodont introduced in Historya Davvun and Worldcraft series.

The female used the grass and algae known as Diploterro's Hair Grass, used as microhabitat for bugs and other critters on her back. The male one doesn't have, probably be ugliest.

#ognimdo2002 #earth responsibly #science fantasy #earth #art #earthresponsibly #fairytale #speculative evolution #ibispaint art #tropical Diploterro #Diploterro #synapsid #cynodont #rapunzles tangled adventure #assassin's creed #monster hunter #historya davvun #worldcraft #worldcraftdamnation #ibis paint x #art ph #grass #spectember #botany #god knows hudas not pay

[thepaleopetshop]

December 11th, 2023

Day #11 on our Christmas Countdown is… Continue reading Untitled

View On WordPress

#advent #Christmas #countdown #cynodont #Kayentatherium

[vandalia1998]

#youtube #vandalia1998 #Gutsick Gibbon #jackson wheat #human evolution #synapsid #therapsid #cynodont #mammals #primates #Monkeys #apes #humans

[antiqueanimals]

The World of Dinosaurs. Written by L. B. Halstead. 1979.

Internet Archive

#prehistoric #synapsids #therapsids #cynodonts #cynognathus #thrinaxodon #prehistoric reptiles #proterosuchus

[tagomago]

david tennant survived the great tumblr sexyman extinction event like cynodonts through the permian-triassic extinction

[extrajigs]

I am rethinkin' Mirum's faux mammals and this is a good representative of their basal condition. Not THE common ancestor but a more 'primitive' design. They are what the platypus is to the human, still in the group and has a lot of key features, but weird. More info below the cut as always!

Vulpwhal are a part of the group of cynodonts that inhabit Mirum, which I want to just call "faux-mammals". They are NOT mammals since they do not produce milk, but share enough common traits that they are hard to distinguish to the average person. MAIN difference is that Mirum's faux-mammals have weird ass teeth. Basically they have 6 incisors on top, 5 on the bottom, 1 pair of canines(only on the top jaw), and 2 molars in the back. Their canines are normally tusks, but in the Vulpwhal they are mostly used for feeling food swimming through the murky silt of the water they feed in. They have a big gum filled indent in them that is a stand in for whiskers. Their semi aquatic lifestyle is also a hint as to how they ended up in Mirum, their group was once much more numerous with various ocean going species. But now these fellas are all that remain, with all their other relatives an ocean away. But these guys get along pretty well, filling a niche similar to a seal while spending much more time on land. They inhabit the rivers and estuaries of a more temperate continent where they are a symbol of nobility! They also lay eggs, something that most faux mammals have developed out of. Like Stows for example pop out already walking around, while Histin have a much more altricial phase. These guys come out more ready to walk around, but spend a few months with their mother to grow before they head out on their own. All in all p fun lil dudes, wanted to just get the baseline down for BIG changes. But also wanted to make a modern day beastie. These guys are not exceedingly common, but they aren't endangered by any means. Also bonus rug for markings/proportions.

#sorry i been away ive been a lil down #worldbuilding #no true north #mirum #faux mammal #speculative biology #spec bio #art

[jfs-worldbuilding-and-art]

Specposium's Spectember day 12: Alternate history

Wasn't sure about what to do today so here is a fun idea:

Mammaln't: In this universe mammals never evolved, yet cynodonts persisted trough the jurassic into today, evolving live-birth, endothermy, good hearing, erect limbs, everything that we seen in modern mammals, all but mammary glands themselves.

Instead of giving birth to altricial young who needs to feed on milk during their early stages, mammaln'ts have either a longer gestation period, giving birth to precocious young. Or giving birth to altricial young who are fed crop-milk or prey by the adults, much like birds.

Depicted is a wolf-like(in appearence) mammaln't.

#specposium #spectember 2023 #spectember #worldbuilding #art #illustration #spec bio #speculative biology #spec evo #speculative evolution #speculative zoology #alternate universe #alternate history #my art