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