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Parasaynoceras
Taxonomy
Parasaynoceras was named by Breistroffer (1947) [Sepkoski's age data: K Barr]. Its type is Ammonites horridus.
It was assigned to Ammonoidea by Sepkoski (2002); and to Holcodiscidae by Klein (2005).
It was assigned to Ammonoidea by Sepkoski (2002); and to Holcodiscidae by Klein (2005).
Species
Species lacking formal opinion data
Synonymy list
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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. †Parasaynoceras Breistroffer 1947
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†Parasaynoceras horridus d'Orbigny 1850
†Parasaynoceras mexicanum Imlay 1940
Diagnosis
No diagnoses are available