30142 - Top Rare 0.45 Inch Psilocephalina Cambrian Trilobite - China Hadrosaurus Environments: (192 collections)

Environments: (192 collections)

Elimaproetus

open shallow subtidal (4)

So Methodist Univ

30142 - Top Rare 0.45 Inch Psilocephalina Cambrian Trilobite - China Hadrosaurus Environments: (192 collections)Psilocephalina, Hsu 1948 (trilobite) Trilobita Asaphida Asaphidae PaleoDB taxon number: 20158 Parent taxon: Asaphidae according to P. A. Jell and J. M. Adrain 2002 See also Sepkoski 2002 Sister taxa: Anataphrus, Araiocaris, Asaphellus, Asaphinae, Atopasaphus, Aulacoparia, Australopyge, Basilicus, Bellefontia, Birmanites, Bohemopyge, Brachyaspis, Branisaspis, Burminresia, Ectenaspis, Emanuelaspis, Eoasaphus, Eoisotelus, Fuyunia, Gerasaphes,