273 Specimen Results

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Class

Chondrichthyes (273)

Family

Ptychodontidae (273)

Genus

Ptychodus (273)

has media

Has media (155)

Has no media (118)

Individual/Organization

Sternberg, G.F. (29)

Walker, M.V. (19)

Frye, L.C. (16)

Haverfield, R.W. (27)

Finney, D.L. (1)

Stewart, J.D. (4)

Zakrzewski, R.J. (10)

Period

Cretaceous (266)

Epoch

Age

Cenomanian (49)

Middle Cenomanian (5)

Formation

Carlile Shale (3)

Carlile/Greenhorn (13)

Codell Sandstone (1)

Graneros/Greenhorn (3)

Greenhorn (112)

Member

Blue Hill Shale (5)

Fairport Chalk (11)

Fairport/Pfeifer (1)

Country

United States of America (264)

State/Province

County

Las Animas (36)