Oatka Creek Formation
Athyridida
Leptospira gibbosa
Atrypida
Pseudoatrypa devoniana
Orthida
Rhipidomella vanuxemi
Tropidoleptus carinatus
Orthotetida
Eoschuchertella arctostriata
Productida
Spinulicosta spinulicosta
Truncalosia truncata
Rhynchonellida
Cherryvalleyrostrum limitare
Cupularostrum congregata
Rynchonellida
Eumetabolotoechia multicostatum
Spiriferida
Ambocoelia umbonata
Crurispina nana
Cyrtina hamiltonensis
Elita fimbriata
Mediospirifer audaculus
Megakozlowskiella sculptilis
Mucrospirifer mucronatus
Strophomenida
Arcuaminetes scitulus (Hall, 1857)
Devonochonetes coronatus
Longispina mucronata
Pholidostrophia nacrea
Protoleptostrophia perplana
Sinochonetes lepidus
Striatochonetes setigerus