Sordes
Sordes was a small pterosaur from the late Jurassic (Oxfordian/Kimmeridgian) Karabastau Svita of Kazakhstan.
This genus was named in 1971 by Aleksandr Grigorevich Sharov.[1] The type species is Sordes pilosus. The genus name is Latin for "filth" or "scum"; but Sharov translates it as "nechist", which means "devil" or "evil spirit", so the intended translation is "hairy devil"[2] (the specific name is Latin for "hairy"; despite sordes being feminine, it has not yet been amended to pilosa[original research?]).
Sordes is based on the holotype PIN 2585/3, which consists of a crushed relatively complete skeleton on a slab. It was found in the 1960s at the foothills of the Karatau in Kazakhstan.
Sharov had already referred a paratype or second specimen: PIN 2470/1, again a fairly complete skeleton on a slab. By 2003 another six specimens had been discovered.
Sordes had a 0.63 m (2 ft) wingspan. The wings were relatively short. Sordes had, according to Sharov and Unwin, wing membranes attached to the legs and a membrane between the legs. It had a short neck. It had a long tail, accounting for over half its length, with at the end an elongated vane.
It had a slender, not round, head with moderately long, pointed jaws. The skull was about 8 cm (3.2 in) long. Unlike many pterosaurs, it had no head crest. The teeth in the frontal half of the jaws are large and pointed to facilitate prey capture. The teeth beyond these in the rear half of the jaw are much smaller and more numerous than those at the front, suggesting that they were more for crushing. Together these two types of teeth indicate specialisation for prey that was difficult to catch yet required some effort to eat. Likely contenders are invertebrates with tougher exoskeletons, or amphibians that were slippery to catch and then required some crunching before they could be swallowed.[citation needed]
