Where: Japan (35.2° N, 140.2° E: paleocoordinates 35.4° N, 140.0° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Kiwada Formation, Calabrian (1.8 - 0.8 Ma)
• Initially reported as "Pliocene" but biostratigraphy, magnetostratigraphy, and tephrochronology constrain the Kiwada Formation to 1.9-1.2 Ma (Masayuki et al., 2019).
• group of beds-level stratigraphic resolution
Environment/lithology: marine; siliciclastic sediments
Size class: macrofossils
Collection methods: Repository: Institute of Geology and Palaeontology, Tohoku University, Sendai (IGPS)
Primary reference: K. Hatai. 1948. New Tertiary Brachiopoda from Japan. Journal of Paleontology 22:494-499 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 233106: authorized by Matthew Clapham, entered by Matthew Clapham on 13.01.2024
Creative Commons license: CC BY (attribution)
Taxonomic list
Rhynchonellata | |
Isumithyris kazusaensis n. gen. n. sp.
Isumithyris kazusaensis n. gen. n. sp. Hatai 1948 |