#FossilFriday!! All Allosaurs belong to a single species, A. fragilis. Now, after extensive reanalysis, it turns out there is a second species, the proposed A. jimmadensis. These have a straight bony cheek arch, and blade-like crests above the nostrils.
https://t.co/CLBUqhF8sa https://t.co/fguKKr0XX4
@PeiceofNick Super hype for Allosaurus today, "A. jimmadseni" is a name I've heard in books for twenty years and now it's FINALLY a thing!
https://t.co/AcymReuvod
Have the paper, it's great