A new ammonite Geticeras gen. nov. from the Lower Valanginian (Lower Cretaceous) of the Spiti Valley, Tethys Himalaya, India

Abstract

A new neocomitin ammonite taxon Geticeras getensis gen. et sp. nov. is systematically described from the poorly fossiliferous part of the Giumal Formation exposed near the village Gete, Spiti Valley, Tethys Himalaya, India. The characteristic ribbing of Geticeras, particularly on ventro-lateral shoulder and its tabulate venter, distinguish it from other genera of the Subfamily Neocomitinae. Based on the recent documentation of the globally spread ammonite genus Olcostephanus Neumayr from the same stratigraphic section, an Early Valanginian age is assigned to Geticeras gen. nov. © 2018, Wadia Institute of Himalayan Geology. All rights reserved.