30558 - Top Rare 0.35 Inch Amecephalus piochensis Middle Cambrian Trilobite - Nevada, USA Pilletopeltis Euonchonotina

Euonchonotina

subequal lingal and labial surfaces bearing verticals striations that are more numerous on the lingual face and developed only on the two thirds of the crown height

Boeckaspis

Parent taxon: Plantae according to W

Moss and S

30558 - Top Rare 0.35 Inch Amecephalus piochensis Middle Cambrian Trilobite - Nevada, USA Pilletopeltis EuonchonotinaAmecephalus, Walcott 1924 (trilobite) Trilobita Alokistocaridae PaleoDB taxon number: 20273 Parent taxon: Ptychopariacea according to F. A. Sundberg and L. B. McCollum 2000 See also Jell and Adrain 2002, Mason 1935, Palmer and Halley 1979, Sepkoski 2002 and Sundberg and McCollum 2000 Sister taxa: Eokochaspis, Kochina, Mexicella, Piochella Subtaxa: Amecephalus arrojosensis, Amecephalus strangulatus View classification Ecology: fast moving low level