30341 - Rare 0.48 Inch Ajacicrepida ajax Cambrian Trilobite - China Dinosaur Fossils Under Study Its discovery was made in

Its discovery was made in the most basal part of the stratigraphic levels corresponding to the red sandstones of the upper member of the Ifezouane Formation

See also Eldredge 1972

Schizoproetina

Beautiful preserved  and well prepared specimen

Its preservation state is exceptional

30341 - Rare 0.48 Inch Ajacicrepida ajax Cambrian Trilobite - China Dinosaur Fossils Under Study Its discovery was made inAjacicrepida, Wengtang and Jell 1987 (trilobite) Trilobita Asaphida PaleoDB taxon number: 19837 Parent taxon: Asaphida according to J. J. Sepkoski 2002 Sister taxa: Aethodionide, Anomocaridae, Asaphina, Asaphoidea, Borogothus, Borthaspis, Boschchekulia, Brandysops, Bumastides, Callaspis, Caulaspis, Ceratolithus, Clavatellus, Cremastoglottos, Cyclopygoidea, Digrypos, Dikelocephalacea, Dikelocephalinidae, Dikelocephalopsis, Dipleuropyge, Doremataspis,