Class Gastropoda Cuvier, 1797
Subclass Prosobranchia Milne-Edwards, 1848
Order Archaeogastropoda Thiel, 1925
Suborder Pleurotomariina Cox and Knight, 1960
Superfamily Pleurotomariacea Swainson, 1840
Pleurotomariacean gen. et sp.
[cited Pleurotomaria sp. by Butts, 1922]
Family Phymatopleuridae Batten, 1956
Genus Borestus Thomas, 1940
Borestus sp.
Family Eotomariidae Wenz, 1938
Subfamily Eotomariinae Wenz, 1938
Tribe Ptychomphalides Wenz, 1938
Genus Euconospira Ulrich in Ulrich and Scofield, 1897
Euconospira conula (Hall, 1857)
[cited by Feldman, 1984]
Superfamily Trochonematacea Zittel, 1895
Family Trochonematidae Zittel, 1895
Genus Amaurotoma Knight, 1945
Amaurotoma leavenworthana Hall, date?
[cited as Cyclonema leavenworthana Hall by Butts, 1922]
Suborder Trochina Cox and Knight, 1960
Superfamily Platuceracea Hall, 1859
Family Platuceratidae Hall, 1879
Genus Platyceras Conrad, 1840
Platyceras (Orthonychia) acutirostre (Hall, 1856)
[cited as Orthonychia acutirostre (Hall) by Butts, 1922]
[cited by Feldman, 1984]
Platyceras circulare Rowley, date?
[cited by Butts, 1922]
Suborder Bellerophontina Thiele, 1925
Family Bellerophontidae M'Coy, 1851
Subfamily Bellerophontinae M'Coy, 1851
Genus Bellorophon Montfort, 1808
Bellerophon sp.
[cited by Feldman, 1984]
Bellerophon subblaevis? Hall, date?
[cited by Butts, 1922]
Suborder Macluritina Cox and Knight, 1960
Superfamily Macluritacea Fischer, 1885
Family Euomphalidae de Koninck, 1881
Genus Straparollus DeMontfort, 1810
Subgenus S. (Euomphalus) Sowerby, 1814
Euomphalus sp. "high-spired form"
[cited by Butts, 1922]
Suborder incertae sedis
Superfamily Pseudophoracea Miller, 1889
pseudopharacea genus and species
[cited by Feldman, 1984]
Class Bivalvia Linnaeus, 1758
Order Modiomorphoida Newell, 1969
Family Modiomorphidae Miller, 1877
Genus Cypricardinia Hall, 1859
Cypricardinia sp.
[cited by Feldman, 1984]
Order Pterioida Newell, 1965
Suborder Pteriina Newell, 1965
Superfamily Ambonychiacea Miller, 1877
Family Myalinidae Frech, 1891
Myalinidae genera and species
[cited by Feldman, 1984]
Class Cephalopoda Cuvier, 1797
coiled cephalopod
[cited by Butts, 1922]