ecofactbook
/
species
/
Animalia
/
Mollusca
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Cephalopoda
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Ammonoidea
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Stephanoceratidae
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Stemmatoceras
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Stemmatoceras albertense
Stemmatoceras arcicostum
Stemmatoceras palliseri
Stemmatoceras subcoronatum
Stemmatoceras triptolemus
Stemmatoceras ursinum
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