Oatka Creek Formation
Orthotetida
Eoschuchertella arctostriata
Rhynchonellida
Cherryvalleyrostrum limitare
Cupularostrum congregata
Rynchonellida
Eumetabolotoechia multicostatum
Spiriferida
Ambocoelia umbonata
Crurispina nana
Cyrtina hamiltonensis
Elita fimbriata
Strophomenida
Arcuaminetes scitulus (Hall, 1857)
Devonochonetes coronatus