USNM:PAL
Helicoceras rubeyi Reeside
USNM PAL317167 W. Rubey 1923-00-00
United States, Wyoming, Crook County
USNM:PAL
Helicoceras mortoni var. tenuicostatum Meek
USNM PAL473
USNM:PAL
Helicoceras rubeyi Reeside
USNM PAL73285
USNM:PAL
Helicoceras pariense White
USNM PAL8638
USNM:PAL
Helicoceras navarroense Shumard
USNM PAL73113
USNM:PAL
Helicoceras navarroense Shumard
USNM PAL77284
USNM:PAL
Helicoceras pariense White
USNM PAL22933
USNM:PAL
Helicoceras navarroense Shumard
USNM PAL77283
USNM:PAL
Helicoceras pariense White
USNM PAL32539
USNM:PAL
Helicoceras navarroense Shumard
USNM PAL77282
USNM:PAL
Helicoceras rubeyi Reeside
USNM PAL217935 W. Rubey 1923-00-00
United States, Wyoming, Crook County
USNM:PAL
USNM PAL467
USNM:PAL
Helicoceras corrugatum Stanton
USNM PAL22934
USNM:PAL
Helicoceras rubeyi Reeside
USNM PAL73286
USNM:PAL
Helicoceras rubeyi Reeside
USNM PAL73292
USNM:PAL
USNM PAL77285
USNM:PAL
Helicoceras stevensoni Whitfield
USNM PAL12307
USNM:PAL
Helicoceras navarroense Shumard
USNM PAL21082
USNM:PAL
Helicoceras rubeyi Reeside
USNM PAL217932 W. Rubey 1923-00-00
United States, Wyoming, Crook County
USNM:PAL
Helicoceras rubeyi Reeside
USNM PAL217933 W. Rubey 1923-00-00
United States, Wyoming, Crook County
USNM:PAL
Helicoceras rubeyi Reeside
USNM PAL217934 W. Rubey 1923-00-00
United States, Wyoming, Crook County
UCM:IP
Helicoceras corrugatum
717 Henderson, Junius; George, R
United States, Colorado, Boulder
UCM:IP
Helicoceras mortoni
1063
United States, Colorado, Boulder
UCM:IP
1365 Henderson, Junius
United States, Colorado, Boulder, 40.079981 -105.272792
UCM:IP
1388 Henderson, Junius
United States, Colorado, Boulder, 40.074631 -105.268867
UCM:IP
Helicoceras mortoni
2587 Greenman, Ernest
United States, Wyoming, Albany, 41.725059 -105.888961
UCM:IP
Helicoceras corrugatum
4003 Colorado Geological Survey 1911-00-00
United States, Colorado, Grand
UCM:IP
7208 George, R
United States, Colorado
UCM:IP
Helicoceras corrugatum
11832 Colorado Geological Survey; Weeks, H. 1922-00-00
United States, Colorado, Delta, 38.825101 -108.068417
UCM:IP
Helicoceras corrugatum
12467 Aurand, H; Coffin, R. 1923-02-00
United States, Arizona, Navajo, 35.8239888 -110.5179034
UCM:IP
Helicoceras mortoni tenuicostatum
14175 Aurand, H; Hunter, J
United States, Colorado, Fremont, 38.3547 -105.0601
UCM:IP
Helicoceras navarroense
19074
United States, Tennessee
UCM:IP
Helicoceras corrugatum
107361 Aurand, H; Coffin, R. 1923-02-00
United States, Arizona, Navajo, 35.8239888 -110.5179034
UCM:IP
Helicoceras pariense
3960 Henderson, Junius; Hinds, NEA 1911-07-17
United States, Colorado, Grand, 40.102615 -106.118358