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.

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.

• The Genus Umiates Spath, 1931 (Ammonoidea) from the Tithonian (Late Jurassic) of Kutch, Western India. [1]

This ammonite-related article is a stub. You can help Wikipedia by expanding it.

• v
• t
• e