30728 - Top Quality 3.48 Inch Crotalocephalina (Crotalocephalus) gibbus Lower Devonian Trilobite Concavotectum Line 0: Place of purchase:

Line 0: Place of purchase: Tucson Date: P 2018 Mass (g): 35

It belongs to the Upper Cretaceous

• Silurian of Australia

although no systematic survey has been done

Cornuproetinae

30728 - Top Quality 3.48 Inch Crotalocephalina (Crotalocephalus) gibbus Lower Devonian Trilobite Concavotectum Line 0: Place of purchase: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, Chacomurus, Cheirurinae, Cheirurus, Chiozoon, Contracheirurus,