岡山大学 地球科学研究報告
Published by Okayama University Earth Science Reports Editorial Committee

岡山県美咲町小原周辺に分布する中部中新統からのPaleoparadoxiaの産出報告

Fukuchi, Akira
Abstract
 The partially preserved left humerus of the Desmostylia (Mammalia) has been collected from the riverbed in Obara, Misaki-cho, Okayama Prefecture in the western Japan. This specimen can be classified to the genus Paleoparadoxia by the following features: the absence of the supratrochlear foramen; the curved disto-lateral border of the shaft in the antero-posterior view; the medio-laterally expanded flat trochlea of humerus. Moreover, this specimen can be referred to cf. P. media on the basis of its middle-sized dimensions. This is the second occurrence of Palaeoparadoxia from Okayama Prefecture.
Keywords
Middle Miocene
mammal
Desmostylia
Paleoparadoxia
ISSN
1340-7414
NCID
AN10506284
NAID