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Ptyssoceras
5d93dfbf38d16d63397de01dcc5fa1c4
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Ptyssoceras Hyatt, 1884
Source
Rank
genus
Names
1
species:4623539
Proc. Boston nat. Hist. Soc. , 22, 282.
Classification
Rutoceratidae Hyatt, 1884
Ptyssoceras Hyatt, 1884
