Fossil Friday: Helicoprion
Helicoprion is an extinct genus of shark-like, cartilaginous fish that lived from the early Permian (~290 m.y. ago) all through ...
Tag: Helicoprion
Amazing buzz saw fish mystery finally solved
(c) RAY TROLL 2013. (Photo : Flickr/Ryan Somma) In 1899 the famous Russian paleontologist Alexander Petrovich Karpinsky published a paper in which ...