Where: Japan (33.1° N, 130.5° E: paleocoordinates 40.4° N, 124.3° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Kannondake Formation, Middle Eocene (48.6 - 37.2 Ma)
• STRATIGRAPHIC RELATIONS: From Kannondake Fm, which conformably overlies the Middle Eocene Hokonoko Fm. THICKNESS: From bed within formation of group that attains a thickness of 40 m. AGE: Middle Eocene, based on molluscan biostratigraphy. STRATIGRAPHIC POSITION: From near the base of the formation.
• bed-level stratigraphic resolution
Environment/lithology: marginal marine; lithified, medium-grained, calcareous sandstone
Size class: macrofossils
Collection methods: surface (float),
• COLLECTOR: Sugai and Furukawa (c. 1960). REPOSITORY: Not stated in text, unknown.
Primary reference: A. Mizuno. 1964. Paleogene and Early Neogene molluscan faunae in West Japan. Geological Survey of Japan Report 204 [A. Hendy/A. Hendy]more details
Purpose of describing collection: biostratigraphic analysis
PaleoDB collection 71023: authorized by Austin Hendy, entered by Austin Hendy on 14.04.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Vicarya sp. d'Archiac and Haime 1854 horn snail | |
"Orthaulax" japonicus Nagao 1924 snail | |
Cerithiopsis sp. Hanley 1849 snail | |
Bivalvia | |
Solen sp. Linnaeus 1758 clam |