Subphylum Vertebrata Cuvier, 1812
microicthyoliths from Chondrichthyes and Osteichthyes
Class Chondrichthyes Huxley, 1880
[most of the following are form genera and species.]
Subclass Elasmobranchii Bonaparte, 1838
Infraclass Cladoselachimorpha author?, date?
Order Cladoselachiformes author?, date?
Cladodus form-genus form-ssp.
Infraclass Euselachii (Hay, 1902)
Order Ctenacanthiformes author?, date?
Ctenacanthus form-genus form-sp.
Acondylacanthus form-genus sp.
incertae sedis
Lophodus/Agassizodus form genus
Orodus/Hybodus form genus
Subclass Holocephali (Bonaparte, 1832-41)
calcified cartilage from cranium or mandible
Order Petalodontiformes Zangerl, 1981
Family Petalodontida (Zangerl, 1981)
Chomatodus chesterensis St. John andWorthen, 1875
Chomatodus sp.
Petalodus acuminatus (Agassiz, 1838)
Polyrhizodus sp.
Order Bradyodonta (Woodward, 1821)
[These are largely form genera and species.]
Copodus pusillus St. John and Worthen, 1883
Psammodus form-genus sp.
Deltodus/Psephodus/Sandalodus form genera
incertae sedis
Petrodus sp. (skin denticle probably found on many genera in several classes)
