30309 - Top Beautiful 2.10 Inch Crotalocephalina (Crotalocephalus) gibbus Lower Devonian Trilobite Niobella lindstroemi a partial skeleton

a partial skeleton

08 Inch = 2

Calymenina

and typically at some growth stage

-Prognathodon currii (Christiansen & Bonde

30309 - Top Beautiful 2.10 Inch Crotalocephalina (Crotalocephalus) gibbus Lower Devonian Trilobite Niobella lindstroemi a partial skeletonCrotalocephalina 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,