Two additional araxoceratid ammonoids from the Wuchiapingian (upper Permian) of the South Kitakami Belt, Northeast Japan

Abstract

Two Wuchiapingian (late Permian) ammonoids, Vedioceras sp. and Urartoceras sp., both belonging to the family Araxoceratidae, are described from the South Kitakami Belt, Northeast Japan. Araxoceratid ammonoids were widespread in the low-latitude regions of the Tethys, Tethys-Panthalassa border and eastern Panthalassa regions. The Wuchiapingian araxoceratid fauna of the South Kitakami Belt, including with the known araxoceratid ammonoids such as Araxoceras cf. rotoides, A. sp., Dzhulfoceras cf. furnishi, D. sp, Vescotoceras japonicum, V. sp. and Eusanyangites cf. bandoi, has a close similarity to that of the western Tethys Province in the generic composition.