Where: Gunma, Japan (36.3° N, 139.0° E: paleocoordinates 37.6° N, 137.4° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Itahana Formation (Tomioka Group), Tortonian to Tortonian (11.6 - 5.3 Ma)
• formation-level stratigraphic resolution
Environment/lithology: marine; sandy siltstone
Size class: macrofossils
Collection methods: surface (in situ),
• The total specimens identified are poor, but they include such evergreen trees as Actinodaphne and Cinnamomum together with a number of Ficus.
Primary reference: K. Ozaki. 1991. Late Miocene and Pliocene Floras in Central Honshu, Japan. Bulletin of Kanagawa Prefectural Museam Natural Science Special Issue 1-244 [H. Sims/H. Lindon/H. Lindon]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 21227: authorized by Hallie Sims, entered by Heather Lindon on 21.06.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
Angiospermae | |
Bambusites sp. Ettingshausen 1886 grass | |
Liquidambar miosinica sweetgum | |
"Ficus" tiliaefolia Br fig | |