@article{oai:niigata-u.repo.nii.ac.jp:00006826,
 author = {Tazawa, Jun-ichi},
 journal = {Science reports of Niigata University. (Geology), Science reports of Niigata University. (Geology)},
 month = {Mar},
 note = {A spiriferid brachiopod species, Purdonella tschernyschewiformis (Ozaki, 1931), is described from an Upper Carboniferous (Bashkirian) limestone of the Ichinotani Formation in the Fukuji area, Hida Gaien Belt, central Japan. This species is known from the Upper Carboniferous (Bashkirian-Moscovian) of Liaoning, Northeast China and Xinjiang, Northwest China. The distribution of the genus Purdonella is restricted to the Upper Carboniferous-Lower Permian of the Boreal region, so far as known. Therefore, the occurrence of P. tschernyschewiformis within Bashkirian limestone at Fukuji suggests that the Hida Gaien region, including the Fukuji area, was part of a continental shelf bordering the eastern margin of North China (Sino-Korea) during the Late Carboniferous.},
 pages = {17--27},
 title = {A spiriferid brachiopod species, Purdonella tschernyschewiformis (Ozaki, 1931), from the Upper Carboniferous of Fukuji, central Japan},
 volume = {25},
 year = {2010}
}