Where: Yamaguchi, Japan (34.0° N, 131.0° E: paleocoordinates 41.5° N, 124.3° E)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Okinoyama Formation (Ube Group), Eocene (56.0 - 33.9 Ma)
• bed-level stratigraphic resolution
Environment/lithology: mudstone
Size class: macrofossils
Preservation: mold/impression, original carbon
Collection methods: quarrying,
Primary reference: K. Huzioka and E. Takahasi. 1970. The Eocene flora of the Ube coal-field, southwest Honshu, Japan. Journal of the Mining College, Akita University, Series A: Mining Geology 4(5):1-88 [S. Wing/H. Lindon/J. Cassara]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 24466: authorized by Scott Wing, entered by Heather Lindon on 08.08.2002
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Angiospermae | |
Sabal chinensis palm | |
Machilus ubensis laurel | |
Liquidambar miosinica sweetgum | |
Platanus sp. Linnaeus 1753 plane tree | |
Xylosma eoapactis brushholly | |
Zelkova kushiroensis zelkova | |
Myrica ubensis bayberry | |
Pasania matsumotoi, "Cyclobalanopsis naitoi" = Quercus (Cyclobalanopsis), "Cyclobalanopsis sp." = Quercus (Cyclobalanopsis)
"Cyclobalanopsis naitoi" = Quercus (Cyclobalanopsis) ring-cupped oak
"Cyclobalanopsis sp." = Quercus (Cyclobalanopsis) Oersted ring-cupped oak | |
Dicotyledoneae | |
Maesa nipponica primrose | |
Metasequoia occidentalis Chaney 1951 dawn redwood
Taxodium dubium Sternberg 1824 cypress |