07605 - Beautiful 2.69 Inch Crotalocephalina (Crotalocephalus) gibbus Lower Devonian Trilobite Mosasaur bones It displays strong pleochroism

It displays strong pleochroism

A time bubble that looks just like it was almost 50 Million years ago

14 on maxillary

bright red

Alternative combination: Carcharias macrota

07605 - Beautiful 2.69 Inch Crotalocephalina (Crotalocephalus) gibbus Lower Devonian Trilobite Mosasaur bones It displays strong pleochroismNice and well prepared specimen. It has glued and filled fractures. Crotalocephalina sp, Pibyl and Vanek 1964 (trilobite) Trilobita Phacopida Cheiruridae Parent taxon: Cheiruridae according to P. A. Jell and J. M. Adrain 2002 See also Sepkoski 2002 Sister taxa: Acanthoparyphinae, Anasobella, Ancyginaspis, Arcticeraurinella, Areia, Areiaspis, Borealaspis, Bornholmaspis, Ceraurinium, Ceraurinus, Cerauroides, Cerauromeros, Cerauropeltis, Ceraurus,