@article{oai:niigata-u.repo.nii.ac.jp:00006834,
 author = {Tazawa, Jun-ichi and Ibaraki, Yousuke},
 journal = {Science reports of Niigata University. (Geology), Science reports of Niigata University. (Geology)},
 month = {Mar},
 note = {Four species of linoproductoid brachiopods, Linoprotonia ashfellensis Ferguson, 1971, Linoprotonia hikoroichiensis sp. Nov., Gigantoproductus cf. crassiventer (Prentice, 1949) and Gigantoproductus cf. latiexpansus Sarytcheva in Sarytcheva and Sokolskaya, 1952, are described from the upper Lower Hikoroichi Fromation in the Onimaru quarry, Hikoroichi, southern Kitakami Mountains, northeast Japan. The age of the fossil horizon is assigned to be Early Visean on the basis of the occurrence of Linoprotonia ashfellensis, an Early Visean species from northern England.},
 pages = {7--19},
 title = {Linoprotonia and Gigantoproductus (Linoproductoidea, Brachiopoda) from the Lower Carboniferous in the Onimaru quarry, Hikoroichi, southern Kitakami Mountains, NE Japan},
 volume = {24},
 year = {2009}
}