30142 - Top Rare 0.45 Inch Psilocephalina Cambrian Trilobite - China Hadrosaurus org/wiki/Mosasaurus

org/wiki/Mosasaurus

Otarion diffractum

Peronopsis elongatus

Beautifully preserved

Hydrolaenus

30142 - Top Rare 0.45 Inch Psilocephalina Cambrian Trilobite - China Hadrosaurus org/wiki/MosasaurusPsilocephalina, 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,