Brachiopods
Athyridida
Athyris cora
Athyris spiriferoides
Athyris vittata randalia
Leptospira gibbosa
Meristella barrisi
Meristella haskinsi
Parazyga hirsuta
Atrypida
Atrypa reticularis
Nucleospira concinna
Pseudoatrypa devoniana
Spinatrypa sinuata
Spinatrypa spinosa
Spinatrypa spinosa milwaukeensis
Chonetida
Striatochonetes schucherti
Discinida
Lingulodiscina marginalis
Lingulida
Barroisella complanata
Barroisella milwaukeensis
Barroisella rectilatera
Lingula delia
Orbiculoidea telleri
Orthida
Rhipidomella leucosia
Rhipidomella penelope
Rhipidomella vanuxemi
Schizophoria iowensis musculosa
Schizophoria lata
Tropidoleptus carinatus
Orthotetida
Eoschuchertella arctostriata
Pentamerida
Pentamerella multicostata
Pentamerella pavilionensis
Productida
Productella spinulicosta
Spinulicosta spinulicosta
Truncalosia truncata
Rhynchonellida
Cherryvalleyrostrum limitare
Cupularostrum congregata
Cupularostrum depressa
Cupularostrum scitulus
Eumetabolotoechia greeni
Sapphicorhynchus sappho
Rynchonellida
Eumetabolotoechia multicostatum
Spiriferida
Allenella tullius
Ambocoelia umbonata
Crurispina nana
Cyrtina hamiltonensis
Elita fimbriata
Emanuella praeumbona
Mediospirifer audaculus
Megakozlowskiella sculptilis
Mucrospirifer alpenensis
Mucrospirifer arkonensis
Mucrospirifer attenuatus
Mucrospirifer consobrinus
Mucrospirifer cooperi
Mucrospirifer grabaui
Mucrospirifer latus
Mucrospirifer mucronatus
Mucrospirifer multiplicatus
Mucrospirifer profundus
Mucrospirifer prolificus
Mucrospirifer thedfordensis
Paraspirifer acuminatus
Paraspirifer bownockeri
Pustulatia pustulosa
Spinocyrtia milwaukeensis
Tylothyris bimesialis
Tylothyris subvaricosa umbonata
Spiriferinida
Cyrtina triquetra
Cyrtina umbonata
Eosyringothyris occidentalis
Orthospirifer iowensis
Orthospirifer milwaukeensis
Strophomenida
Arcuaminetes scitulus (Hall, 1857)
Devonochonetes coronatus
Longispina mucronata
Megastrophia concava
Mesoleptostrophia junia
Pholidostrophia nacrea
Protodouvillina inequistriata
Protoleptostrophia perplana
Protoleptostrophia serrata
Sinochonetes lepidus
Striatochonetes setigerus
Strophodonta demissa
Strophodonta halli
Terebratulida
Centronella impressa
Cranaena thomasi
Cryptonella planirostra
Cryptonella rectirostra