30670 - Well Preserved 3.36 Inch Crotalocephalina (Crotalocephalus) gibbus Lower Devonian Trilobite Prionocheilus This enormous Prognathodon teeth are

This enormous Prognathodon teeth are preserved in exceptional way

Comptonaspis

Northwest Africa

Great size

This is a very special raptor tooth

30670 - Well Preserved 3.36 Inch Crotalocephalina (Crotalocephalus) gibbus Lower Devonian Trilobite Prionocheilus This enormous Prognathodon teeth areCrotalocephalina 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, Chacomurus, Cheirurinae, Cheirurus, Chiozoon, Contracheirurus,