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Parapopanoceras
Taxonomy
Parapopanoceras was named by Haug (1894) [Sepkoski's age data: Tr Anis-m Tr Anis-u Sepkoski's reference number: 302]. It is not extant. It is the type genus of Parapopanoceratidae.
It was reranked as Popanoceras (Parapopanoceras) by Hyatt and Smith (1905).
It was assigned to Popanoceras by Hyatt and Smith (1905); to Megaphyllitidae by Spath (1951), Kummel (1960), McLearn (1969); to Ceratitida by Sepkoski (2002); and to Parapopanoceratidae by Tozer (1981), Tozer (1994), Korn (2006).
It was reranked as Popanoceras (Parapopanoceras) by Hyatt and Smith (1905).
It was assigned to Popanoceras by Hyatt and Smith (1905); to Megaphyllitidae by Spath (1951), Kummel (1960), McLearn (1969); to Ceratitida by Sepkoski (2002); and to Parapopanoceratidae by Tozer (1981), Tozer (1994), Korn (2006).
Species
Species lacking formal opinion data