USNM:PAL
Gyracanthus
USNM PAL328859 G. Loughlin
United States, Indiana
USNM:PAL
Oracanthus
USNM PAL457225 O. St.John
United States, Iowa, Louisa County
USNM:PAL
Oracanthus consimilis (St.John & Worthen)
USNM PAL341282 O. St.John
United States, Iowa
USNM:PAL
Gyracanthus
USNM V14837 McClung
United States, Arkansas
USNM:PAL
Oracanthus vetustus Leidy
USNM V3380 J. McCabe
United States, Iowa, Marshall County
USNM:PAL
Gyracanthus sherwoodi Newberry
USNM PAL328860 F. Randall 1892-00-00
United States, Pennsylvania, Warren County
USNM:PAL
Periplectrodus warreni (St.John & Worthen)
USNM V15036 O. St.John
United States, Iowa
USNM:PAL
Periplectrodus compressus St.John & Worthen
USNM V15001 1882-00-00
United States, Missouri
USNM:PAL
Oracanthus vetustus Leidy
USNM V13553 Conrad
United States, Missouri
USNM:PAL
Oracanthus
USNM V1130
United States, Michigan
USNM:PAL
Oracanthus triangularis Eastman
USNM V8376 G. Hambach
United States, Illinois
USNM:PAL
Oracanthus vetustus Leidy
USNM V4299 J. McCabe
United States, Iowa, Marshall County
USNM:PAL
Oracanthus triangularis Eastman
USNM V8377 G. Hambach
United States, Illinois
USNM:PAL
Periplectrodus expansus (St.John & Worthen)
USNM V14176 W. Van Horne
United States, Illinois
USNM:PAL
Gyracanthus sherwoodi Newberry
USNM PAL328858 A. Sherwood
USNM:PAL
Gyracanthus formosus Agassiz
USNM V5965
England, Northamptonshire
USNM:PAL
Oracanthus lineatus Newberry
USNM PAL341278
United States, Indiana
USNM:PAL
Oracanthus
USNM PAL409810 Haley & Gutschick 1954-08-04
United States, Arizona, Mohave County
USNM:PAL
Periplectrodus compressus St.John & Worthen
USNM V14157 W. Van Horne 1870-00-00
United States, Illinois
USNM:PAL
Gyracanthus cordatus St.John & Worthen
USNM V13501 L. Cox
United States, Iowa
USNM:PAL
Gyracanthus formosus Agassiz
USNM PAL271593
USNM:PAL
Oracanthus vetustus Leidy
USNM V10784 G. Hambach
United States, Illinois
USNM:PAL
Gyracanthus formosus Agassiz
USNM V4146
England, Lancashire
USNM:PAL
Gyracanthus sherwoodi Newberry
USNM PAL328857 F. Randall
United States, Pennsylvania