Where: Japan (33.5° N, 133.0° E: paleocoordinates 14.5° N, 99.6° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Nakakubo Formation, Asselian (298.9 - 295.5 Ma)
• Presence of Pseudoschwagerina minatoi, Triticites aff. pusillus, Schwagerina stabilis, and Nankinella kawadai suggest Asselian age. Correlative zone also contains Rugosofusulina, Pseudofusulina, and Paraschwagerina.
• group of beds-level stratigraphic resolution
Environment/lithology: lithified, massive, shelly/skeletal, gray, white packstone
Size class: macrofossils
Collected by M. Hirata
• Repository: Department of Geology, Faculty of Science, Kyushu University, Fukuoka (GK-D) and Kochi Prefectural Museum (MH)
Primary reference: J. Yanagida and M. Hirata. 1969. Lower Permian brachiopods from Nakakubo, west-central Shikoku, Japan. Transactions and Proceedings of the Paleontological Society of Japan, N.S. 73:89-111 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 136384: authorized by Matthew Clapham, entered by Matthew Clapham on 27.11.2012, edited by Pete Wagner
Creative Commons license: CC BY (attribution)
Taxonomic list
Strophomenata | |
Neochonetes sp. Muir-Wood 1962 | |
Linoproductidae indet. Stehli 1954 | |
? Marginifera sp. Waagen 1884 | |
Rhynchonellata | |
Uncinunellina shikokuensis n. sp.
Uncinunellina shikokuensis n. sp. Yanagida and Hirata 1969 | |
Rostranteris sp., "Rostranteris cf. nucleolus" = Notothyris nucleolus
Rostranteris sp. Gemmellaro 1899
"Rostranteris cf. nucleolus" = Notothyris nucleolus Kutorga 1842 | |
Callispirina aff. ornata Waagen 1883 | |
Phricodothyris sp. George 1932
Phricodothyris echinata Chao 1929
Phricodothyris cf. asiatica Chao 1929 | |
Tangshanella nakakuboensis n. sp.
Tangshanella nakakuboensis n. sp. Yanagida and Hirata 1969 | |
Neospirifer cf. fasciger Keyserling 1846 | |
Enteletes gibbosus Chronic 1949 | |
Foraminifera | |
Nankinella kawadai Igo 1956 |