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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. 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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