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Isterites
Taxonomy
Isterites was named by Barthel (1975) [Sepkoski's age data: J Tith-u]. It is not extant. Its type is Perisphinctes (Pseudovirgatites) palmatus.
It was assigned to Perisphinctaceae by Barthel (1975); and to Ammonoidea by Sepkoski (2002).
It was assigned to Perisphinctaceae by Barthel (1975); and to Ammonoidea by Sepkoski (2002).
Species