USNM:PAL
Ptychoceras meekanum (Whitfield)
USNM PAL12279
USNM:PAL
Ptychoceras laeve (Gabb)
USNM PAL130163
USNM:PAL
USNM PAL12324
USNM:PAL
USNM PAL103436
USNM:PAL
Ptychoceras (Diptychoceras) glaber (Whiteaves)
USNM PAL539947 D. Jones 1963-00-00
Canada, British Columbia
USNM:PAL
USNM PAL21870
UCM:IP
45
United States, Colorado, Boulder
UCM:IP
673 Henderson, Junius
United States, Colorado, Boulder, 40.121579 -105.235307
UCM:IP
1020 Henderson, Junius
United States, Colorado, Boulder, 40.065501 -105.272729
UCM:IP
1068 Henderson, Junius
United States, Colorado, Boulder, 40.121579 -105.235307
UCM:IP
1086 Henderson, Junius
United States, Colorado, Boulder, 40.065501 -105.272729
UCM:IP
1087 Henderson, Junius
United States, Colorado, Boulder, 40.065501 -105.272729
UCM:IP
1296 Henderson, Junius
United States, Colorado, Boulder, 40.065501 -105.272729
UCM:IP
1302 Henderson, Junius
United States, Colorado, Boulder, 40.065501 -105.272729
UCM:IP
1312 Henderson, Junius
United States, Colorado, Boulder, 40.065501 -105.272729
UCM:IP
1318 Henderson, Junius
United States, Colorado, Boulder, 40.058467 -105.270546
UCM:IP
1374 Henderson, Junius
United States, Colorado, Boulder, 40.079981 -105.272792
UCM:IP
2363 Henderson, Junius; Duce, J 1909-08-04
United States, Colorado, Garfield, 39.621658 -107.747752
UCM:IP
1394 Henderson, Junius
United States, Colorado, Boulder, 40.079981 -105.272792
UCM:IP
1879 Henderson, Junius; Dodds, G
United States, Colorado, Larimer, 40.498305 -105.084423
UCM:IP
1973 Henderson, Junius
United States, Colorado, Larimer, 40.307008 -105.120917
UCM:IP
3633 Henderson, Junius
United States, Colorado, Boulder, 40.073782 -105.265654
UCM:IP
4474 Smith, A; Hinds, Norman 1911-08-26
United States, Colorado, Grand, 40.339501 -106.472426
UCM:IP
4487 Smith, A; Hinds, Norman 1911-08-26
United States, Colorado
UCM:IP
4799 Rathvon, S
United States, Colorado, Jackson, 40.731542 -106.130641
UCM:IP
7108 Colorado Bureau of Mines
United States, Colorado, El Paso, 38.844817 -104.858596
UCM:IP
7857 Henderson, Junius; Andrews, Philip 1917-06-28
United States, Colorado, 38.388681 -104.1649
UCM:IP
8466 Coffin; Knowlton, F; Henderson, Junius 1920-00-00
United States, Colorado
UCM:IP
9398 Rennie, W; Myers, John
United States, Wyoming, Weston, 43.863854 -104.43705
UCM:IP
13519
United States, Montana, Blaine/Chouteau/Fergus, 47.294108 -109.98516
UCM:IP
14174 Aurand, H; Hunter, J
United States, Colorado, Fremont, 38.3547 -105.0601
UCM:IP
14850 Aurand; Hunter
United States, Colorado, Fremont, 38.352261 -105.079535
UCM:IP
17381
United States, Wyoming, Weston, 43.8547 -104.3250388
UCM:IP
109558
United States, Colorado, Boulder
UCM:IP
109559
United States, Colorado, Boulder
UCM:IP
109560 Henderson, Junius
United States, Colorado, Boulder, 40.065501 -105.272729
UCM:IP
109561 Henderson, Junius
United States, Colorado, Boulder, 40.065501 -105.272729