MolluscaBase source details
Niko, S. (2002). Revision of an Ordovician cephalopod Ormoceras yokoyamai. Paleontological Research. 6 (1): 121-124.
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Niko, S.
2002
Revision of an Ordovician cephalopod Ormoceras yokoyamai
Paleontological Research
6 (1): 121-124
Publication
Date
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Proteoceratidae Flower, 1962 † (basis of record)
Treptoceras Flower, 1942 † (basis of record)
Treptoceras yokoyamai (Kobayashi, 1927) † (basis of record)
Treptoceras Flower, 1942 † (basis of record)
Treptoceras yokoyamai (Kobayashi, 1927) † (basis of record)