Glyphidites

Glyphidites
Temporal range: Norian
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: Ammonoidea
Order: Ceratitida
Family: Thisbitidae
Genus: Glyphidites
Mojsisovics, 1893

Glyphidites is a Late Triassic ceratitid included in the family Thisbitidae, characterized by an essentially involute shell with a compressed whorl section, nearly straight sides and arched venter, bearing a serrated keel and granular sinuous ribs.

Glyphidites comes from the Upper Triassic (Norian) of Sicily and the Alps. Related genera include Thisbites and Jellinekites. The Thisbitidae, to which it is assigned, has been removed from the Clydonitaceae in Akell et al., 1957 to the Tropitaceae in E.T. Tozer, 1981

References

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