Taxon
Gattendorfia bransoni
Goniocyclus
Goniocyclus antelopensis
Goniocyclus blairi+
Goniocyclus cooperi
Goniocyclus costulatus
Goniocyclus decipiens
Goniocyclus filaris
Goniocyclus rockymontanus
Goniocyclus sp. (Qualifier: in)
Hammatocyclus sp. (Qualifier: in)
Hammatocyclus? brazerensis
Nematocyclus (Qualifier: gy)
Rotopericyclus pinyonensis