I'MPULSEimpactさんのイラストまとめ

meet the stymphalian terror bird metalon

males grow rust in specific patterns in their metal feathers to attract mates, but have to be careful not to damage the feathers too much before they can grow new ones

Caulkicephalus

An anhanguerid with a 5 meter wingspan known from fragmentary specimens, its named after a nickname used to refer to isle of Wight inhabitants

ALT: the jaw was found without the teeth, thanks to the tooth sockets and replacement teeth their sizes can be inferred

Barbourofelis

A 90 cm tall feliform with large dagger like canines which have earned them the nickname of "false saber-tooths", its lower jaw was extended to protect them

ALT: while the largest species was at around the size of a lion, other where closer to leopard size

Ainiktozoon

An odd and mysterious animal known from specimens as long as 24 cm, recent studies believe it to be a thylacocephalan crustacean

ALT: Earlier studies where possibly looking at it upside down, and believed it to be a chordate that convergently evolved a compound eye

quick fix, forgot to set the background for the boi so i gave it the carboniferous instead of the devonian one by accident

Acanthostega

A 60 cm tetrapod, its known for developing the first appendages recognizable as limbs, although it doesnt seem these could have been used to move on land

ALT: it also developed what is known as "terrestrial feeding" by biting land animals near the edge of the water

Walliserops

A 9 cm long acastid known for its trident like structure, its unknown why it had it but it likely had a similar function to the horns of beetles

ALT: some specimens are known to have different trident sizes, its currently believed to represent different species

Triceratops

One of the largest ceratopsians at 9 meters and the most popular, well known by its large and round frill and its tree horns, probably used to display dominance

Alt: now considered a synonym, its known only from postcranial remains and was confused with a hadrosaur

Scutosaurus

A large 3 meter long pareiasaur named after the plates of armor in its body, as a herbivore that lived in a semi-arid climate it had to travel long distances to find vegetation

ALT: Known from a partial skull, its considered a synonym as its not well preserved

Scelidosaurus

A 4 meter long thyreophoran known from mostly complete remains, although it was covered in scutes its armor was relatively light

ALT: While its arms indicate it manly moved quadrupedally a trackway found in poland implies it and its relatives could move bipedally