USNM:PAL
Ptychodus decurrens Agassiz
USNM V1648 T. Keam
United States, Arizona
USNM:PAL
Ptychodus mortoni Agassiz
USNM V5461 C. Sternberg
United States, Kansas
USNM:PAL
Ptychodus latissimus Agassiz
USNM V10877 A. Joseph 1921-00-00
Colombia
USNM:PAL
Ptychodus
USNM V7654 Lee & Stanton 1912-00-00
United States, New Mexico
USNM:PAL
Ptychodus
USNM PAL435183 Smith, N. Sohl & Bryant S-78A-65 1978-10-00
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus
USNM PAL293201 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL784214 D. Schwimmer et al.
United States, Georgia, Chattahoochee County
USNM:PAL
Ptychodus
USNM PAL324150 Stephenson Et Al 1929-03-15
United States, Texas, Grayson County
USNM:PAL
Ptychodus
USNM PAL531659 J. McLellan 1986-02-18
United States, Texas, Hill County
USNM:PAL
Ptychodus whippleyi Marcou
USNM V1714 R. Gribble
United States, Texas, Collin County
USNM:PAL
Ptychodus mammillaris (Agassiz)
USNM V4293 A. Kraus
Germany
USNM:PAL
Ptychodus mortoni Agassiz
USNM V85
United States, Alabama
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL281161 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus
USNM PAL337282 Pearce & Dunkle 1947-07-00
United States, New Mexico, Santa Fe County
USNM:PAL
Ptychodus whippleyi Marcou
USNM V1684 G. Gilbert 1893-07-28
United States, Colorado
USNM:PAL
Ptychodus calceolus Newberry & Worthen
USNM V15476 R. Bassler
United States, Missouri
USNM:PAL
Ptychodus
USNM PAL531653 J. McLellan 1986-00-00
United States, Texas, Ellis County
USNM:PAL
Ptychodus whippleyi Marcou
USNM V25241 G. Lipscomb
United States, Alabama, Perry County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL281162 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293197 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL337288 L. Johnson
United States, Alabama
USNM:PAL
Ptychodus polygurus Agassiz
USNM V82 A. Winchell
United States, Alabama
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293210 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus mortoni Agassiz
USNM V1677 G. Sternberg
United States, Kansas
USNM:PAL
Ptychodus whippleyi Marcou
USNM V4931 H. Gore 1895-00-00
United States, Colorado
USNM:PAL
Ptychodus polygurus Agassiz
USNM V15992
England, Wiltshire
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293237 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL337292
United States, Colorado
USNM:PAL
Ptychodus
USNM PAL293208 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293297 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus latissimus Agassiz
USNM V11754
England, Sussex
USNM:PAL
Ptychodus
USNM V15991
England, Suffolk
USNM:PAL
Ptychodus polygurus Agassiz
USNM V16439
England
USNM:PAL
Ptychodus mortoni Agassiz
USNM V11907
United States, Alabama, Greene County
USNM:PAL
Ptychodus
USNM PAL337284 S. Mason 1883-00-00
United States, Kansas, Ottawa County
USNM:PAL
Ptychodus
USNM PAL535268 J. Renfro
United States, Texas, Ellis County
USNM:PAL
Ptychodus occidentalis Leidy
USNM PAL293463 Le Conte Et Al
United States, Kansas
USNM:PAL
Ptychodus
USNM PAL324077
United States, Texas
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293200 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus
USNM V1687 G. Gilbert 1893-00-00
United States, Colorado
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL281164 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus whippleyi Marcou
USNM V2382
United States, Texas
USNM:PAL
Ptychodus
USNM PAL324149 Stephenson Et Al 1944-10-12
United States, Texas, Grayson County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL330534
England
USNM:PAL
Ptychodus mortoni Agassiz
USNM V1715 R. Gribble
United States, Texas, Collin County
USNM:PAL
Ptychodus mortoni Agassiz
USNM V16716 G. Pearce 1936-00-00
United States, Kansas, Graham County
USNM:PAL
Ptychodus
USNM V8906 1919-00-00
United States, Colorado
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL438111 J. McLellan 1984-08-16
United States, Texas, Travis County
USNM:PAL
Ptychodus anonymous Williston
USNM PAL531658 J. McLellan 1984-00-00
United States, Texas, Travis County
USNM:PAL
Ptychodus
USNM PAL337278 A. Kimzey 1926-00-00
United States, Texas, Collin County
USNM:PAL
Ptychodus
USNM PAL438122 J. McLellan 1986-00-00
United States, Texas, Travis County
USNM:PAL
Ptychodus polygurus Agassiz
USNM V4963
United States, Kansas, Ellis County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL618340 S. Mason
United States, Kansas, Ness County
USNM:PAL
Ptychodus
USNM PAL337283 S. Mason 1883-04-00
United States, Kansas, Russell County
USNM:PAL
Ptychodus polygurus Agassiz
USNM V16113 F. Burgon
England, Somersetshire
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293209 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus latissimus (Agassiz)
USNM PAL442332 W. Heim 1985-00-00
United States, Texas, Travis County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293205 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus whippleyi Marcou
USNM V10268 C. Hares
United States, Wyoming, Osage County
USNM:PAL
Ptychodus
USNM PAL330546 D. Andrews 1938-09-04
United States, Wyoming
USNM:PAL
Ptychodus
USNM PAL435193 C. Smith CS-79-85 1979-09-01
United States, Mississippi, Monroe County
USNM:PAL
Ptychodus
USNM V6630 F. Kurtz 1910-00-00
United States, Colorado
USNM:PAL
Ptychodus mantell
USNM PAL293474 N. Darton
United States, South Dakota
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL784215 D. Schwimmer et al.
United States, Georgia, Chattahoochee County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293489 L. Stephenson
United States, Texas
USNM:PAL
Ptychodus altior Agassiz
USNM V16440
England
USNM:PAL
Ptychodus
USNM PAL330544 Reeside-Jr. Et Al
United States, Wyoming, Crook County
USNM:PAL
Ptychodus altior Agassiz
USNM V16447
England
USNM:PAL
Ptychodus
USNM V14652 F. Springer
United States, Iowa
USNM:PAL
Ptychodus mortoni Agassiz
USNM V1680 A. Winchell 1894-00-00
United States, Alabama, Greene County
USNM:PAL
Ptychodus
USNM PAL435191 Smith, N. Sohl & Bryant S-78-M66 1978-10-20
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus
USNM PAL443551 L. Johnson 1977-10-00
United States, Alabama, Autauga County
USNM:PAL
Genus
USNM V10294 C. Engelhart 1894-10-13
United States, Maryland, Prince George's County
USNM:PAL
Ptychodus polygurus Agassiz
USNM V18134
United States, Wyoming
USNM:PAL
Ptychodus
USNM PAL347801 K. Craddock
United States, Texas, Denton County
USNM:PAL
Ptychodus mortoni Agassiz
USNM V1678 G. Sternberg
United States, Kansas
USNM:PAL
Ptychodus
USNM PAL337297 O. Nye 1968-07-00
France
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293193 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus anonymous Williston
USNM V4932 H. Gane 1895-00-00
United States, Colorado
USNM:PAL
Ptychodus
USNM V3908 Beymer & Harvley 1898-00-00
United States, Colorado
USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL337294 L. Stephenson
United States, Texas
USNM:PAL
Ptychodus decurrens Agassiz
USNM V3770 Gore
United States, Colorado
USNM:PAL
Ptychodus
USNM PAL337280 L. Johson 1883-04-17
United States, Alabama, Dallas County
USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL535269 J. Renfro
United States, Texas, Ellis County
USNM:PAL
Ptychodus polygurus Agassiz
USNM V16405
England
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL347879 C. Smith 1980-00-00
United States, Mississippi, Clay County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL438112 J. McLellan 1985-00-00
United States, Texas, McLennan County
USNM:PAL
Ptychodus whippleyi Marcou
USNM PAL449312
United States, Texas
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL287562 L. Johnson 1977-10-00
United States, Alabama, Autauga County
USNM:PAL
Ptychodus polygurus Agassiz
USNM PAL337290 L. Frederick 1932-00-00
United States, Colorado, Bent County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293296 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus
USNM PAL337279 L. Johson
United States, Alabama, Autauga County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293232 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus
USNM PAL324151 L. Stephenson 1928-06-06
United States, Texas, Travis County
USNM:PAL
Ptychodus mortoni Agassiz
USNM V1682 C. Sternberg
United States, Kansas
USNM:PAL
Ptychodus mortoni Agassiz
USNM V1679 G. Sternberg
United States, Kansas
USNM:PAL
Ptychodus mortoni Agassiz
USNM V14651 St.John & Mudge 1875-00-00
United States, Kansas, Gove County
USNM:PAL
Ptychodus mortoni Agassiz
USNM PAL293298 N. Sohl, Smith & Bryant 1978-10-18
United States, Mississippi, Lowndes County
USNM:PAL
Ptychodus mortoni Agassiz
USNM V11908
United States, Alabama
USNM:PAL
Ptychodus whippleyi Marcou
USNM V1683 G. Gilbert 1893-12-13
United States, Colorado