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Proplacenticeras
Taxonomy
Proplacenticeras is a genus. It is not extant.
It was assigned to Placenticeratidae by Parnes (1964); and to Ammonoidea by Sepkoski (2002).
It was assigned to Placenticeratidae by Parnes (1964); and to Ammonoidea by Sepkoski (2002).
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Proplacenticeras
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†Proplacenticeras stantoni Hyatt 1903
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Invalid names: Placenticeras merenskyi Haughton 1930 [synonym]
Diagnosis
No diagnoses are available