USNM:PAL
Stenopterodus elongatus St.John & Worthen
USNM V14130 F. Springer 1881-00-00
United States, Illinois
USNM:PAL
Deltodus spatulatus Newberry & Worthen
USNM V14032 F. Springer
United States, Iowa
USNM:PAL
Psephodus placenta (Newberry & Worthen)
USNM V14290 C. Wachsmuth
United States, Iowa
USNM:PAL
Deltodus stellatus Newberry & Worthen
USNM V14013 F. Springer 1872-00-00
United States, Iowa
USNM:PAL
Sandalodus occidentalis (Leidy)
USNM V13985 C. Wachsmuth
United States, Iowa
USNM:PAL
Vaticinodus similis St.John & Worthen
USNM V13056 W. Van Horne
United States, Illinois
USNM:PAL
Psephodus magnus (Portlock)
USNM V4624 R. Lacoe
Belgium
USNM:PAL
Cochliodus latus Leidy
USNM V3395 L. Cox
United States, Iowa
USNM:PAL
Deltodus spatulatus Newberry & Worthen
USNM PAL341761 F. Springer
United States, Iowa
USNM:PAL
Synthetodus trisulcatus Newberry
USNM V3931 C. Eastman
United States, Iowa, Johnson County
USNM:PAL
Deltoptychius nitidus (Leidy)
USNM V16002 F. Springer
United States, Illinois, Monroe County
USNM:PAL
Taeniodus regularis St.John & Worthen
USNM V13097 O. St.John
United States, Iowa
USNM:PAL
Streblodus oblongus Agassiz
USNM PAL457256
Ireland
USNM:PAL
Chitinodus springeri St.John & Worthen
USNM V15054 F. Springer
United States, Iowa, Louisa County
USNM:PAL
Erismacanthus formosus Eastman
USNM V5989 G. Hambach
United States, Illinois
USNM:PAL
Orthopleurodus novo-mexicanus St.John & Worthen
USNM PAL341287 Springer & St.John 1880-00-00
United States, New Mexico
USNM:PAL
Psephodus
USNM PAL341377
United States, Iowa
USNM:PAL
Sandalodus laevissimus Newberry & Worthen
USNM V3460 L. Cox
United States, Iowa
USNM:PAL
Sandalodus laevissimus Newberry & Worthen
USNM V3474 L. Cox
United States, Iowa
USNM:PAL
Deltodopsis bialveatus St.John & Worthen
USNM V16023 F. Springer
United States, Iowa, Des Moines County
USNM:PAL
Listracanthus hystrix Newberry & Worthen
USNM V14049 O. St.John 1869-06-14
United States, Iowa, Warren County
USNM:PAL
Poecilodus rugosus (Newberry & Worthen)
USNM PAL341279 O. St.John
United States, Iowa
USNM:PAL
Sandalodus occidentalis (Leidy)
USNM V3505 L. Cox
United States, Iowa
USNM:PAL
Crassidonta stuchenbergi Branson
USNM V20662 F. Honkala 50-98-FSH 1950-08-00
United States, Idaho, Clark County
USNM:PAL
Chitonodus springeri St.John & Worthen
USNM V12997 O. St.John
United States, Iowa, Louisa County
USNM:PAL
Stenopterodus planus St.John & Worthen
USNM V13093 F. Springer
United States, Iowa, Louisa County
USNM:PAL
Listracanthus hystrix Newberry & Worthen
USNM V14050 O. St.John 1869-06-14
United States, Iowa, Warren County
USNM:PAL
Poecilodus rugosus (Newberry & Worthen)
USNM V3500 L. Cox
United States, Iowa
USNM:PAL
Vaticinodus simplex St.John & Worthen
USNM V14296 O. St.John
United States, Iowa
USNM:PAL
Deltoptychius
USNM V14665 O. St.John
United States, Iowa
USNM:PAL
Deltodopsis angustus (Newberry & Worthen)
USNM PAL341764 O. St.John
United States, Illinois
USNM:PAL
Sandalodus laevissimus Newberry & Worthen
USNM V13047 W. Van Horne
United States, Iowa
USNM:PAL
Deltodus spatulatus Newberry & Worthen
USNM V14029 C. Wachsmuth
United States, Iowa
USNM:PAL
Deltodopsis st ludovici St.John & Worthen
USNM V13010 W. Van Horne
United States, Illinois
USNM:PAL
Sandalodus ellipticus Newberry
USNM V14872 R. Bassler
United States, Iowa
USNM:PAL
Sandalodus spatulatus Newberry & Worthen
USNM V13099 W. Van Horne
United States, Illinois
USNM:PAL
Deltodus
USNM PAL341748 Cox, Hambach & Springer
United States, Iowa
USNM:PAL
Cochliodus latus Leidy
USNM PAL341778
United States, Iowa
USNM:PAL
Deltodus stellatus Newberry & Worthen
USNM PAL341740 G. Hambach
United States, Illinois, Monroe County
USNM:PAL
Deltoptychius
USNM PAL341272 C. Wachsmuth
United States, Iowa
USNM:PAL
Sandalodus laevissimus Newberry & Worthen
USNM V3472 L. Cox
United States, Iowa
USNM:PAL
Stenopterodus planus St.John & Worthen
USNM V13029 O. St.John
United States, Iowa
USNM:PAL
Sandalodus occidentalis (Leidy)
USNM V3506 L. Cox
United States, Iowa
USNM:PAL
Sandalodus laevissimus Newberry & Worthen
USNM V13966 Springer & St.John
United States, Illinois
USNM:PAL
Taeniodus
USNM V14792 F. Springer
United States, Illinois
USNM:PAL
Xystrodus occidentalis (Eastman)
USNM V15154
United States, Missouri
USNM:PAL
Sandalodus vetustus (St.John & Worthen)
USNM V14225 G. Hambach
United States, Iowa, Marshall County
USNM:PAL
Sandalodus laevissimus Newberry & Worthen
USNM V3477 L. Cox
United States, Iowa
USNM:PAL
Deltoptychius springeri (St.John & Worthen)
USNM V15048 Springer & St.John 1880-00-00
United States, New Mexico
USNM:PAL
Psephodus placenta (Newberry & Worthen)
USNM PAL341378
United States, Iowa
USNM:PAL
Sandalodus laevissimus Newberry & Worthen
USNM V13967 G. Hambach
United States
USNM:PAL
Listracanthus
USNM V14621 O. St.John 1883-04-22
United States, Kansas
USNM:PAL
Stenopterodus planus St.John & Worthen
USNM V13094 F. Springer
United States, Iowa, Louisa County
USNM:PAL
Deltodus stellatus Newberry & Worthen
USNM PAL341747 F. Springer
United States, Iowa
USNM:PAL
Deltoptychius wachsmuthi St.John & Worthen
USNM V3503 L. Cox
United States, Iowa
USNM:PAL
Sandalodus occidentalis (Leidy)
USNM V14007 G. Hambach
United States, Iowa
USNM:PAL
Chitonodus springeri St.John & Worthen
USNM V13008 F. Springer
United States, Iowa, Louisa County
USNM:PAL
Deltodus spatulatus Newberry & Worthen
USNM PAL341736 F. Springer
United States, Iowa, Louisa County
USNM:PAL
Deltodus spatulatus Newberry & Worthen
USNM V14011 F. Springer
United States, Iowa, Louisa County
USNM:PAL
Deltodus spatulatus Newberry & Worthen
USNM V14023 G. Hambach
United States, Iowa
USNM:PAL
Deltodus spatulatus Newberry & Worthen
USNM PAL358009 F. Springer
United States, Iowa, Des Moines County
USNM:PAL
Chitonodus springeri St.John & Worthen
USNM V13009 F. Springer
United States, Iowa, Louisa County
USNM:PAL
Deltodopsis bialveatus St.John & Worthen
USNM V16020 F. Springer 1872-00-00
United States, Iowa
USNM:PAL
Cochliodus latus Leidy
USNM V3446 L. Cox
United States, Iowa
USNM:PAL
Poecilodus rugosus (Newberry & Worthen)
USNM V3498 L. Cox
United States, Iowa
USNM:PAL
Chitinodus springeri St.John & Worthen
USNM V15061 C. Wachsmuth
United States, Iowa
USNM:PAL
Xystrodus simplex St.John & Worthen
USNM V13057 F. Springer
United States, Iowa, Louisa County
USNM:PAL
Deltodus angularis Newberry & Worthen
USNM V14033 O. St.John 1867-06-03
United States, Iowa, Adams County
USNM:PAL
Erismacanthus mccoyanus St.John & Worthen
USNM V8094 G. Hambach
United States, Missouri
USNM:PAL
Psephodus obliquus St.John & Worthen
USNM V14858 R. Bassler
United States, Iowa
USNM:PAL
Deltoptychius wachsmuthi St.John & Worthen
USNM V3519 L. Cox
United States, Iowa
USNM:PAL
Sandalodus occidentalis (Leidy)
USNM V13987 F. Springer
United States, Iowa
USNM:PAL
Sandalodus
USNM PAL339334 O. St.John
United States, Illinois
USNM:PAL
Deltodus sandalinus De Koninck
USNM V4628 R. Lacoe
Belgium
USNM:PAL
Cochliodus
USNM V14229 F. Springer
United States, Iowa
USNM:PAL
Deltodus stellatus Newberry & Worthen
USNM V14019 F. Springer
United States, Iowa, Des Moines County
USNM:PAL
Deltodus sublovis Agassiz
USNM V14021
USNM:PAL
Listracanthus hystrix Newberry & Worthen
USNM V14055 O. St.John 1867-00-00
United States, Iowa, Dallas County
USNM:PAL
Chitonodus springeri St.John & Worthen
USNM V12996 C. Wachsmuth
United States, Iowa
USNM:PAL
Deltodus stellatus Newberry & Worthen
USNM PAL341744 O. St.John 1888-00-00
United States, Iowa
USNM:PAL
Cochliodus van hornii St.John & Worthen
USNM PAL341773 O. St.John
United States, Missouri
USNM:PAL
Deltoptychius
USNM V3516 L. Cox
United States, Iowa
USNM:PAL
Sandalodus occidentalis (Leidy)
USNM V3525 L. Cox
United States, Iowa
USNM:PAL
Psephodus
USNM V14778
United States, Michigan
USNM:PAL
Sandalodus occidentalis (Leidy)
USNM V3526 L. Cox
United States, Iowa
USNM:PAL
Cochliodus contortus Agassiz
USNM V14203
Ireland
USNM:PAL
Erismacanthus formosus Eastman
USNM V5988 G. Hambach
United States, Missouri
USNM:PAL
Poecilodus rugosus (Newberry & Worthen)
USNM V3495 L. Cox
United States, Iowa
USNM:PAL
Deltoptychius varsoviensis St.John & Worthen
USNM V13072 W. Van Horne
United States, Illinois
USNM:PAL
Psephodus politus Newberry
USNM V14801 G. Hambach
United States, Iowa
USNM:PAL
Deltoptychius wachsmuthi St.John & Worthen
USNM V3521 L. Cox
United States, Iowa
USNM:PAL
Sandalodus
USNM V14201 F. Springer
United States, Iowa
USNM:PAL
Cochliodus nobilis Newberry & Worthen
USNM PAL438679 A. Worthen
United States, Illinois
USNM:PAL
Deltodus angularis Newberry & Worthen
USNM V14165 O. St.John 1870-05-17
United States, Kansas
USNM:PAL
Deltodus undulatus Newberry & Worthen
USNM PAL341738 L. Cox
United States, Iowa
USNM:PAL
Erismacanthus mccoyanus St.John & Worthen
USNM V14122 St.John & Springer
United States, Missouri
USNM:PAL
Deltodus spatulatus Newberry & Worthen
USNM PAL449503 L. Cox
United States, Iowa
USNM:PAL
Deltodus spatulatus Newberry & Worthen
USNM V24969
United States, Iowa
USNM:PAL
Sandalodus
USNM PAL339333 O. St.John
United States, Iowa
USNM:PAL
Cochliodus latus Leidy
USNM V3447 L. Cox
United States, Iowa