@article{oai:niigata-u.repo.nii.ac.jp:00006895,
 author = {Tazawa, Jun-ichi},
 journal = {Science reports of Niigata University. (Geology), Science reports of Niigata University. (Geology)},
 month = {Mar},
 note = {The rhynchonellid brachiopod genus Rotaia is first recorded from the Lower Carboniferous in Japan. The specimen of Rotaia sp. is described from the Hikoroichi Formation (Member HK2; lower Visean) of the Hikoroichi district, southern Kitakami Mountains, northeast Japan. The occurrence of Rotaia together with two brachiopod genera Marginatia and Syringothyris, from the Tournaisian to lower Visean of the southern Kitakami Mountains, suggests that this region was biogeographically connected with the Tienshan-Inner Mongolia-Jilin region of northern China in Tournaisian to early Visean time.},
 pages = {1--11},
 title = {Rotaia (Rhynchonellida, Brachiopoda) from the Lower Carboniferous of northeast Japan and its palaeobiogeographical significance},
 volume = {11},
 year = {1996}
}