Where: Japan (42.2° N, 139.5° E: paleocoordinates 46.4° N, 136.4° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Tsurikake Formation, Early/Lower Miocene (23.0 - 16.0 Ma)
Environment/lithology: shallow subtidal; breccia and sandstone
•with tuffaceous coarse grained sandstone in the upper
•part.
Size classes: macrofossils, mesofossils
Primary reference: S. Uozumi. 1966. Neogene Molluscan Fauna in Hokkaido : Part II. Description of the Okushiri Fauna Associated with Vicarya, from Okushiri Island, Southwest Hokkaido. Journal of the Faculty of Science, Hokkaido University. Series 4, Geology and mineralogy 13(2):139-164 [W. Kiessling/M. Krause/M. Krause]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 173083: authorized by Wolfgang Kiessling, entered by Mihaela Krause on 09.09.2015
Creative Commons license: CC BY (attribution)
Taxonomic list
Hexactinellida | |
Aphrocallistes sp. Gray 1858 glass sponge | |
Gastropoda | |
Calliostoma sp. Swainson 1840 top snail | |
Cerithidea sp. Swainson 1840 horn snail
Cerithidea cf. tokunariensis Masuda 1956 horn snail
Vicaryella notoensis Masuda 1956 horn snail
Vicarya yokayamai horn snail | |
Babylonia kozaiensis Nomura 1939 true whelk | |
Chicoreus asanoi Masuda 1956 murex snail
Murex sp. Linnaeus 1758 murex snail | |
Polinices sp. Monfort 1810 moon snail | |
Bivalvia | |
| |
Ostrea gravitesta oyster | |
"Monia sp." = Pododesmus (Monia)
"Monia sp." = Pododesmus (Monia) Gray 1850 scallop | |
Mizuhopecten kimurai Yokoyama 1925 scallop | |
Clinocardium okushirense Uozumi and Fujie 1966 cockle | |
"Tellina" sp. Linnaeus 1758 tellin clam
Macoma sp. Leach 1819 tellin clam | |
Soletellina minoensis sunset shell | |
Nipponomarcia nakamurai Ikebe 1941 clam | |
Dosinia nomurai Otuka 1934 venus clam
Venerupis sp. Lamarck 1818 venus clam | |
Diplodonta ferruginata Makiyama 1926 clam | |
Solen cf. gouldi clam | |
Cultellus izumoensis Yokoyama 1923 clam |