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Undularia

Gastropoda - Protoculidae

Taxonomy
Undularia was named by Koken (1892) [Sepkoski's age data: Tr Anis Tr Nori Sepkoski's reference number: 797,1130]. It is not extant.

It was assigned to Neotaenioglossa by Sepkoski (2002); and to Protoculidae by Nützel et al. (2003).

Species
U. (Orthostomia), U. (Stereokion), U. disputata, U. scalata
Species lacking formal opinion data
U. alpina