Ammonoidea

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Aspidoceras autharis (Oppel), YPM 28792
Baculites ovatus Say, YPM 6403
Bonarellia lithographica Oppel, YPM 1684
Bonarellia lithographica Oppel, YPM 1881
Discoscaphites nebrascensis (Owen), YPM 23166
Hoploscaphites nicolletii (Morton), macroconch, YPM 6398
Hoploscaphites nicolletii (Morton), macroconch, YPM 43299
Hoploscaphites nicolletii (Morton), macroconch, YPM 43302
Hoploscaphites nodosus (Owen), macroconch, YPM 6078
Jeletzkytes nebrascensis (Owen), macroconch, YPM 23144
Jeletzkytes spedeni Landman & Waage, macroconch, YPM 23129
Monophyllites sphierophyllus, YPM 3715
Muensteroceras oweni, YPM 34747
Perisphinctes suevicus Siemir, YPM 1703
Placenticeras placenta DeKay, YPM 1842
Sphenodiscus lenticularis (Owen), YPM 35096
Taramelliceras euglyptia Oppel, YPM 1844
undet. Belemnoidea, YPM 28790

Heteromorphs

Anaklinoceras reflexum (Stephenson), YPM 36849
Hypantoceras orientale, YPM 36844
Muramotoceras yezoense, YPM 36845
Muramotoceras yezoense, YPM 36852
Nipponites mirabilis, YPM 36846
Nostoceras hyatti, YPM 36847
Solenoceras crassum, YPM 36850
Spiroxybeloceras meekanum, YPM 36848

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