Devonian
Cardiidia
Grammysia arcuata
Grammysia dubia
Grammysia sylvaniensis
Euomphalina
Platyceras arkonense
Platyceras attenuatum
Platyceras bartlettense
Platyceras bradleyi
Platyceras bucculentum
Platyceras carinatum
Platyceras dumosum
Platyceras erectum
Platyceras gebhardi
Platyceras indianense
Platyceras keoughi
Platyceras reticulatum
Platyceras symmetricum
Platyceras thetis
Spiriferida
Mucrospirifer alpenensis
Mucrospirifer arkonensis
Mucrospirifer attenuatus
Mucrospirifer consobrinus
Mucrospirifer cooperi
Mucrospirifer grabaui
Mucrospirifer latus
Mucrospirifer multiplicatus
Mucrospirifer profundus
Mucrospirifer prolificus
Mucrospirifer thedfordensis
Paraspirifer acuminatus
Paraspirifer bownockeri
Stauriida
Heliophyllum annulatum
Heliophyllum arachne
Heliophyllum bathycalyx
Heliophyllum confluens
Heliophyllum decorosum
Heliophyllum dispassum
Heliophyllum elongatum
Heliophyllum ethelanum
Heliophyllum ferronense
Heliophyllum gurleyi
Heliophyllum halli
Heliophyllum incrassatum
Heliophyllum infundibulum
Heliophyllum invaginatum
Heliophyllum juvene
Heliophyllum obconicum
Heliophyllum solidum
Heliophyllum tenuiseptatum