USNM:PAL
Helodus politus Newberry & Worthen
USNM PAL339318
United States, Iowa
USNM:PAL
Helodus
USNM PAL339406 K. Savoie 1975-05-25
United States, Maryland, Garrett County
USNM:PAL
Helodus
USNM V14325 O. St.John 1888-00-00
United States, Illinois
USNM:PAL
Helodus
USNM PAL235401 J. Smedley 1950-00-00
United States, Wyoming, Fremont County
USNM:PAL
Helodus gibberulus Agassiz
USNM V14328
Ireland
USNM:PAL
Helodus coniculus Newberry & Worthen
USNM V15654 Love
United States, Iowa
USNM:PAL
Helodus
USNM V14194
United States, Iowa
USNM:PAL
Helodus
USNM PAL457141 F. Springer 1872-00-00
United States, Iowa
USNM:PAL
Helodus nobilis (Leidy)
USNM V3508 L. Cox
United States, Iowa
USNM:PAL
Helodus
USNM V16075 F. Springer
United States, Iowa, Louisa County
USNM:PAL
Helodus
USNM PAL338829 F. Springer
United States, Iowa
USNM:PAL
Helodus
USNM PAL339405 F. Springer
United States, Iowa, Des Moines County
USNM:PAL
Helodus
USNM PAL338847 O. St.John
United States, Missouri
USNM:PAL
Helodus nobilis (Leidy)
USNM V3487 L. Cox
United States, Iowa
USNM:PAL
Helodus
USNM PAL457347 O. St.John 14
United States, Iowa
USNM:PAL
Helodus sulcatus Newberry & Worthen
USNM V14340 W. Van Horn
United States, Iowa
USNM:PAL
Helodus didymus Agassiz
USNM V16126
Ireland
USNM:PAL
Helodus
USNM V3492 L. Cox
United States, Illinois
USNM:PAL
Helodus politus Newberry & Worthen
USNM PAL339327 O. St.John
United States, Illinois
USNM:PAL
Helodus
USNM PAL449063 O. St.John
United States, Illinois
USNM:PAL
Helodus
USNM PAL457352 O. St.John
United States, Iowa
USNM:PAL
Helodus modestus Newberry
USNM V14862 R. Bassler
United States, Iowa
USNM:PAL
Helodus
USNM PAL317747 O. St.John 31
United States, Iowa
USNM:PAL
Helodus angulatus Newberry & Worthen
USNM V14324 O. St.John 1875-00-00
United States, Illinois
USNM:PAL
Helodus laevissimus Agassiz
USNM V14331
Ireland
USNM:PAL
Helodus
USNM PAL338828 F. Springer
United States, Iowa
USNM:PAL
Helodus wortheni Hay
USNM PAL457221 F. Springer
United States, Iowa
USNM:PAL
Helodus
USNM PAL326428 A. Benson 1963-00-00
United States, Wyoming, Fremont County
USNM:PAL
Helodus politus Newberry & Worthen
USNM V14590 O. St.John
United States, Iowa
USNM:PAL
Helodus
USNM PAL338844 O. St.John
United States, Missouri
USNM:PAL
Helodus nobilis (Leidy)
USNM V14330 F. Springer
United States, Iowa
USNM:PAL
Helodus angulatus Newberry & Worthen
USNM PAL328544 O. St.John
United States, Iowa, Louisa County
USNM:PAL
Helodus
USNM PAL457363 F. Springer 7
United States, Iowa
USNM:PAL
Helodus nobilis (Leidy)
USNM V3488 L. Cox
United States, Iowa
USNM:PAL
Helodus
USNM PAL457359 F. Springer
United States, Iowa
USNM:PAL
Helodus
USNM PAL457356 O. St.John 55
United States, Iowa
USNM:PAL
Helodus crenulatus Newberry & Worthen
USNM PAL457230 F. Springer
United States, Iowa
USNM:PAL
Helodus
USNM PAL457346 O. St.John
United States, Iowa
USNM:PAL
Helodus
USNM PAL338849 F. Springer 1872-00-00
United States, Iowa
USNM:PAL
Helodus
USNM PAL235395 J. Smedley 1952-00-00
United States, Wyoming, Lincoln County
USNM:PAL
Helodus
USNM PAL457361 F. Springer
United States, Iowa
USNM:PAL
Helodus politus Newberry & Worthen
USNM PAL449055 O. St.John 1868-00-00
United States, Iowa, Louisa County
USNM:PAL
Helodus
USNM PAL457353 O. St.John
United States, Iowa
USNM:PAL
Helodus politus Newberry & Worthen
USNM PAL339316
United States, Iowa, Des Moines County
USNM:PAL
Helodus denticulatus Newberry & Worthen
USNM V14329 O. St.John 1871-04-14
United States, Iowa
USNM:PAL
Helodus
USNM PAL338834 F. Springer
United States, Iowa
USNM:PAL
Helodus
USNM PAL319405 O. St.John
United States, Iowa
USNM:PAL
Helodus
USNM PAL449062
England, Somerset
USNM:PAL
Helodus
USNM PAL235398 J. Smedley 1950-00-00
United States, Wyoming, Sublette County
USNM:PAL
Helodus
USNM PAL235403 J. Smedley 1950-00-00
United States, Wyoming, Fremont County
USNM:PAL
Helodus
USNM PAL235404 J. Smedley 1950-00-00
United States, Wyoming, Fremont County
USNM:PAL
Helodus
USNM PAL457360 F. Springer
United States, Iowa
USNM:PAL
Helodus politus Newberry & Worthen
USNM PAL338850 F. Springer
United States, Missouri
USNM:PAL
Helodus politus Newberry & Worthen
USNM PAL339321 O. St.John
United States, Iowa
USNM:PAL
Helodus nobilis (Leidy)
USNM V3489 L. Cox
United States, Iowa
USNM:PAL
Helodus
USNM PAL338811 F. Springer
United States, Iowa
USNM:PAL
Helodus regularis St.John & Worthen
USNM PAL457294 O. St.John
United States, Iowa, Dallas County
USNM:PAL
Helodus
USNM PAL457350 O. St.John
United States, Iowa
USNM:PAL
Helodus
USNM PAL338814 F. Springer
United States, Iowa
USNM:PAL
Helodus elytra Newberry & Worthen
USNM V14338 F. Springer
United States, Iowa
USNM:PAL
Helodus nobilis (Leidy)
USNM V3512 L. Cox
United States, Iowa
USNM:PAL
Helodus
USNM PAL457348 O. St.John 51
United States, Iowa
USNM:PAL
Helodus politus Newberry & Worthen
USNM PAL339324 W. Wachsmuth
United States, Iowa
USNM:PAL
Helodus
USNM PAL338830 F. Springer
United States, Iowa
USNM:PAL
Helodus turgidus (Agassiz)
USNM V4626
Belgium
USNM:PAL
Helodus nobilis (Leidy)
USNM PAL457344
United States, Illinois
USNM:PAL
Helodus nobilis (Leidy)
USNM V3491 L. Cox
United States, Iowa
USNM:PAL
Helodus elytra Newberry & Worthen
USNM PAL457222 F. Springer
United States, Iowa
USNM:PAL
Helodus sulcatus Newberry & Worthen
USNM V14582 O. St.John
United States, Iowa
USNM:PAL
Helodus
USNM V14586 F. Springer
United States, Missouri
USNM:PAL
Helodus politus Newberry & Worthen
USNM V14186 G. Hambach
United States, Iowa, Marshall County
USNM:PAL
Helodus expanus Davis
USNM PAL339329
England
USNM:PAL
Helodus elytra Newberry & Worthen
USNM V14339 F. Springer
United States, Iowa
USNM:PAL
Helodus pentagonus St.John & Worthen
USNM V15626 O. St.John 1868-00-00
United States, Iowa
USNM:PAL
Helodus subpolitus Branson
USNM PAL325188 V. McKelvey 1958-08-29
United States, Montana
USNM:PAL
Helodus nobilis (Leidy)
USNM V3490 L. Cox
United States, Iowa
USNM:PAL
Helodus
USNM PAL338816 O. St.John
United States, Iowa
USNM:PAL
Helodus
USNM PAL449057 F. Springer
United States, Iowa
USNM:PAL
Helodus nobilis (Leidy)
USNM V3515 L. Cox
United States, Iowa
USNM:PAL
Helodus
USNM V14326 O. St.John 1888-00-00
United States, Illinois
USNM:PAL
Helodus nobilis (Leidy)
USNM V3513 L. Cox
United States, Iowa
USNM:PAL
Helodus
USNM PAL338812 F. Springer 1870-00-00
United States, Iowa
USNM:PAL
Helodus laevissimus Agassiz
USNM V14332
Ireland
USNM:PAL
Helodus
USNM PAL603799 G. Billingsley
United States, Arizona
USNM:PAL
Helodus consolidatus Newberry & Worthen
USNM V14150 Van Horne
United States, Illinois
USNM:PAL
Helodus crenulatus Newberry & Worthen
USNM PAL457229 F. Springer
United States, Iowa
USNM:PAL
Helodus
USNM PAL338813 F. Springer
United States, Iowa
USNM:PAL
Helodus
USNM PAL338831 F. Springer
United States, Iowa
USNM:PAL
Helodus
USNM PAL338815 F. Springer
United States, Iowa
USNM:PAL
Helodus nobilis (Leidy)
USNM V3511 L. Cox
United States, Iowa
USNM:PAL
Helodus
USNM PAL338833 F. Springer
United States, Iowa
USNM:PAL
Helodus rugosus Newberry & Worthen
USNM V14342 F. Springer
United States, Illinois
USNM:PAL
Helodus
USNM PAL457354 O. St.John
United States, Iowa
USNM:PAL
Helodus biformis Newberry & Worthen
USNM V14585 F. Springer 1870-00-00
United States, Iowa
USNM:PAL
Helodus
USNM PAL457351 O. St.John
United States, Iowa
USNM:PAL
Helodus
USNM PAL449060 O. St.John
United States, Illinois
USNM:PAL
Helodus
USNM PAL338819 O. St.John
United States, Iowa
USNM:PAL
Helodus coniculus Newberry & Worthen
USNM PAL339323 Van Horne
United States, Iowa, Des Moines County
USNM:PAL
Helodus politus Newberry & Worthen
USNM V15653 F. Springer
United States, Iowa
USNM:PAL
Helodus politus Newberry & Worthen
USNM PAL339313 F. Springer
United States, Missouri