User Options
Toggle navigation
Login
Register
Login
Register
Main Site
Browse
Advanced Search
Featured
About
273 Specimen Results
Add all results to lightbox
Select results to add to lightbox
Sort by:
Title
Sort order:
Ascending
Descending
Start Over
Download results as:
Checklist
PDF (thumbnails)
Specimen information (Excel)
Add selected results to lightbox
Genus:
Ptychodus
Class:
Chondrichthyes
Filter by
Phylum
Chordata (273)
Order
(273)
Family
Ptychodontidae (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)
and 57 more
Period
Cretaceous (266)
Epoch
Lat (1)
Late (5)
Upper (233)
Age
?Turonian (2)
Cenomanian (49)
Coniacian (3)
Middle Cenomanian (5)
Santonian (67)
Turonian (108)
Formation
Carlile (56)
Carlile Shale (3)
Carlile/Greenhorn (13)
Codell Sandstone (1)
Graneros (3)
Graneros/Greenhorn (3)
Greenhorn (112)
Niobrara (70)
Niobrara Chalk (1)
and 2 more
Member
Basal (2)
Blue Hill (10)
Blue Hill Shale (5)
Codell (14)
Fairport (10)
Fairport Chalk (11)
Fairport/Pfeifer (1)
Fort Hays (3)
Hartland (5)
Jetmore (4)
Jetmore Chalk (11)
Juana Lopez (7)
Lincoln (65)
Lincoln Limestone (2)
Pfeifer (13)
Pfeifer/Freeport (9)
Smoky Hill (65)
Smoky Hill Chalk Member (1)
Upper (1)
and 12 more
Country
United States of America (264)
State/Province
Colorado (65)
Iowa (2)
Kansas (197)
County
Baca (4)
Ellis (33)
Gove (10)
Hodgeman (5)
Jewell (8)
Lane (3)
Las Animas (36)
Lincoln (1)
Logan (1)
Mitchell (8)
Osborne (1)
Otero (25)
Plymoth (2)
Republic (13)
Rooks (2)
Russell (43)
Scott (27)
Trego (18)
Washington (6)
and 12 more