Alaska Paleontological Database
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Taxon Detail
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Rank
Name
Author
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Genus:
Protrachyceras
Species
beckeri
,
lecontei
Authors
Year
Title
Reeside, John
1939
Report on Mesozoic fossils collected in Nutzotin Mountains, Yukon Valley, Alaska, by F.H. Moffit in 1938.
Martin, G.
1926
Mesozoic Stratigraphy of Alaska
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