@article{oai:niigata-u.repo.nii.ac.jp:00006823, author = {Shintani, Tomohiko}, journal = {Science reports of Niigata University. (Geology), Science reports of Niigata University. (Geology)}, month = {Mar}, note = {A lot of brachiopods occur in the basal part of the Sakamotozawa Formation (Sakmarian) in the Nagaiwa-Sakamotozawa area, South Kitakami Belt, northeast Japan. Orthotetoid brachiopods are the most abundant taxa within the Nagaiwa-Sakaotozawa fauna. In this paper, the following five species of the orthotetoid brachiopods are described: Meekella striatocostata (Cox), Meekella nagaiwensis sp. nov., Derbyia crassa (Meek and Hayden), Derbyia dorsosulcata Liu and Waterhouse, and Derbyia sakamotozawensis sp. nov.}, pages = {73--90}, title = {Orthotetoids from the Lower Permian (Sakmarian) of the Nagaiwa-Sakamotozawa area, South Kitakami Belt, northeast Japan}, volume = {26}, year = {2011} }