Anidanthus, Gypospirifer and Alispiriferella (Brachiopoda) from the Upper Permian Mizukoshi Formation, central Kyushu, SW Japan
A brachiopod fauna, from the Upper Permian (Lopingian) Mizukoshi Formation of the Mizukoshi area, central Kyushu, southwest Japan, is redescribed and biogeographically discussed. The Mizukoshi fauna consists of three brachiopod species, Anidanthus ussuricus (Fredericks), Gypospirifer volatilis Duan and Li and Alispiriferella lita (Fredericks). These species have been reported from the Middle and Upper Permian of northeast Japan (South Kitakami Belt), central Japan (Hida Gaien Belt), Far East Russia (South Primorye), northeast China (Jilin and Heilongjiang) and north China (Inner Mongolia). All the above-cited regions belong to the Boreal-Tethyan transitional zone in eastern Asia. The geographical distribution of the three brachiopod species of the Mizukoshi fauna suggests that the Mizukoshi area is the southwestern extension of the Hida Gaien Belt, and it was located between the Hida Gaien Belt to the north and the South Kitakami Belt to the south in the Late Permian.
- Science reports of Niigata University. (Geology) = Science reports of Niigata University. (Geology)
Science reports of Niigata University. (Geology) = Science reports of Niigata University. (Geology) 22 1-14, 2007-03