Alaska Paleontological Database
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Taxon Detail
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Rank
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Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Genus:
Proplacenticeras
Authors
Year
Title
Cobban, W.; Gryc, George
1961
Ammonites from the Seabee Formation (Cretaceous) of northern Alaska
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