USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL337295 L. Stephenson
United States, Texas
USNM:PAL
Ptychodus
USNM V18353 A. Murray 1948-06-05
United States, Wyoming, Niobrara County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL337287 C. Sternberg
United States, Kansas
USNM:PAL
Ptychodus mammillaris (Agassiz)
USNM V4531
Brazil
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293204 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL337291 M. Ames 1928-00-00
United States, Colorado
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293196 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL610870 M. Hough & M. Troyer
United States, Wyoming, Fremont County
USNM:PAL
Ptychodus
USNM PAL293202 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL337296 S. Johnson
United States, Kansas, Russell County
USNM:PAL
Ptychodus mammillaris (Agassiz)
USNM PAL535270 J. Renfro
United States, Texas, Ellis County
USNM:PAL
Ptychodus anonymous Williston
USNM PAL531656 J. McLellan 1983-00-00
United States, Texas, Travis County
USNM:PAL
Ptychodus
USNM PAL438688 N. Sohl, Smith & Bryant S-78-M66 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293233 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293189 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus
USNM V14653 F. Springer
England
USNM:PAL
Ptychodus whippleyi Marcou
USNM V25240 G. Lipscomb
United States, Alabama, Perry County
USNM:PAL
Ptychodus
USNM V14654 W. Wachsmuth 1881-00-00
United States, Iowa
USNM:PAL
Ptychodus
USNM PAL337286 Greelley
United States, Wyoming, Weston County
USNM:PAL
Ptychodus latissimus Agassiz
USNM PAL337289 G. Kalteger
United States, Texas, Bexar County
USNM:PAL
Ptychodus anonymous Williston
USNM PAL531655 J. McLellan 1984-00-00
United States, Texas, Travis County
USNM:PAL
Ptychodus anonymous Williston
USNM PAL531657 J. McLellan 1984-02-00
United States, Texas, Travis County
USNM:PAL
Ptychodus whippleyi Marcou
USNM V25242 G. Lipscomb
United States, Alabama, Perry County
USNM:PAL
Ptychodus
USNM PAL327195
England, Cambridgeshire
USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL438123 J. McLellan 1985-10-27
United States, Texas, Travis County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL330015 Eargle & Hay
United States, Alabama, Dallas County
USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL449313 L. Stephenson
United States, Texas
USNM:PAL
Ptychodus rugosus Dixon
USNM PAL449350
France, Alpes-Maritimes Department
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL330013 J. Northrop 1936-05-21
United States, Colorado, Montezuma County
USNM:PAL
Ptychodus polygurus Agassiz
USNM V11906
United States, Alabama
USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL281652
United States, South Dakota
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL281165 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus
USNM PAL337285 Ruby Et Al 1924-07-18
United States, Wyoming, Crook County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL442331 W. Heim 1985-00-00
United States, Texas, Travis County
USNM:PAL
Ptychodus
USNM PAL444238 N. Sohl & Smith 1977-10-00
United States, Alabama, Pickens County
USNM:PAL
Ptychodus anonymous Williston
USNM PAL337298 E. Kauffman 1963-09-30
United States, Colorado, Park County
USNM:PAL
Ptychodus
USNM PAL337281 Haskins
United States, Iowa
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL281163 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL337293 C. Dane 1931-00-00
United States, Colorado
USNM:PAL
Ptychodus mortoni Agassiz
USNM V1681 R. Robinson
United States, Texas, Fannin County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL312257 C. Smith
United States, Mississippi, Clay County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL449314 J. Prather
United States, Texas
USNM:PAL
Ptychodus mortoni Agassiz
USNM V84 C. Sternberg
United States, Kansas
USNM:PAL
Ptychodus
USNM PAL327157 R. Frye 1978-07-04
United States