30746 - Well Prepared 1.67 Inch Kettneraspis prescheri (Long Occipital Horn) Lower Devonian Trilobite Cut & Polished Ammonites In addition to the 550

In addition to the 550 collected by Walcott

Bumastus orbicaudatus

Unguliproetus

Cyphinioides

Boschchekulia

30746 - Well Prepared 1.67 Inch Kettneraspis prescheri (Long Occipital Horn) Lower Devonian Trilobite Cut & Polished Ammonites In addition to the 550Kettneraspis, Prantl and Pribyl 1949 (trilobite) Trilobita Odontopleuridae PaleoDB taxon number: 19811 Parent taxon: Odontopleurinae according to J. M. Adrain and L. Ramskold 1997 See also Jell and Adrain 2002, Sepkoski 2002 and Whittington 1956 Sister taxa: Acidaspis, Anacaenaspis, Dalaspis, Diacanthaspis, Edgecombeaspis, Leonaspis, Odontopleura, Primaspis, Radiaspis Subtaxa: Kettneraspis copelandi, Kettneraspis ramskoeldi, Kettneraspis wrightae View