Gatunek typowy
Pseudarietites westfalicus dorsoplanus Schmidt,1924

Opis

Conch thin discoidal, evolute, with wide umbilicus like Pseudarietites, but venter broadly rounded, without keel or furrows.  Growth lines with shallow ventral sinus. Flanks with prominent linear ribs. Ventral lobe parallel-sided, adventitious lobe deep and rounded, lateral lobe shallow, centering on umbilical seam.

Synonimy

Zasięg czasowy

Literatura