Umiaites
Umiaites is a Late Jurassic (Tithonian stage) ammonitid included in the Olcostephanidae which is part of the Perisphinctaceae. The type is Umiaites rajnathi Spath, 1931.
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| Family: | Olcostephanidae |
| Subfamily: | Spiticeratinae |
| Genus: | Umiaites Spath, 1931 |
The shell of Umiaites is large, reaching a diameter of 16 cm or greater, and evolute with a wide shallow umbilicus. Flanks are flat to gently curving. Whorls overlap the previous by a fourth.
So far, Umiaites is known only from Kutch in western India and is considered endemic to the region. Related genera include Spiticeras and Proniceras, with different distribution.
References
- The Genus Umiates Spath, 1931 (Ammonoidea) from the Tithonian (Late Jurassic) of Kutch, Western India.
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