Taxon
Gonioglyphioceras gracile+
Gonioloboceras goniolobum+
Gonioloboceras welleri
Metaperrinites subcumminsi
Parashumardites fornicatus
Perrinites hilli*
Properrinites boesei*
Properrinites cumminsi
Properrinites plummeri (Qualifier: sy)
Shumardites simondsi+