Here's something kinda... unique... I took some of my drawing subjects and turned them into fictional prehistoric animals! Enjoy!
Triceraconus viras (Three-horned cone, Viras')
This orthocone from the Ordovician period has the interesting trait of having three spikes at the end of its large shell, the use of which is a mystery. Some palaeontologists have even suggested that it used them to anchor itself on the seafloor to catch prey from a standstill, but that defies hunting logic. Its eye had an unusual spiral-like shape, making this creature even more fascinating.
Based on my Avatar, Virastentacular
Rodrigodon fulgogluteus (Rodrigo's tooth, fire-colored glutes)
This little Brazilian hypsilophodontid had a modest coloration, a sensible choice seeing how it would have been vulnerable to predators. However, it had an interesting pattern of red stripes on its white hindquarter feathers. This may have been used in some sort of mating display, or perhaps for mothers to signal their young of their presence.
Based on mastervegeta's OC, Rodrigo
Milliedromeus fulgogluteus (Millie's runner, fire-colored glutes)
A brightly colored ornithomimosaur inhabited the area that now composes California. Its beautiful feathers were, oddly enough, present in both genders, therefore leading to palaeontologists comparing this species to the New Guinean crowned pigeons. When the white feathers on its glutes ruffled up, a red pattern showed up, probably as a form of threat or sexual display.
Based on my OC Media Millie
Pterofysalida rosae (Bubble wing, rose-colored)
This little pterodactyloid is considered an oddity among its family. Firstly, it had an inflatable waddle under its lower jaw, which was bright pink in color, surely used for some sort of display. Also, its short snout, short teeth and isotopes in its bones show that it was a fruit-eater, which sought out the sweetest ones. This implies that it lived in thick tropical forests, an unusual habitat for pterosaurs.
Based on "Bubblegum Rosy/Rossie", from Action 52
Stellapithecus megasthitos (Stella's ape, big-breasted)
Its fossils found in the Carpathian and Caucasus mountains, this hominid is truly an oddity; an early, ape-like hominid out of Africa, predating Homo erectus! The females are specially interesting, having huge breasts. It's been theorized that female humans evolved enlarged breasts (in comparison to other primates, that is...) in order to attract males to the front of its body, therefore making eye contact easier. Also, it seems that they used the beaks of spoonbills for some unknown percussive purpose.
Based on "Stella"/"Miss Tits"/"Boob Lady", from Action 52