Where: Niigata, Japan (38.0° N, 138.2° E: paleocoordinates 41.0° N, 135.5° E)
• coordinate stated in text
When: Tsurushi Formation, Langhian (16.0 - 13.8 Ma)
• Originally said to be Serravallian; Radiolarian zones N10 to N13.
•Langhian according to Tanaka et al 1995.
Environment/lithology: marine; lithology not reported
Size class: macrofossils
Primary reference: L. G. Barnes and K. Hirota. 1995. Miocene pinnipeds of the otariid subfamily Allodesminae in the North Pacific Ocean: Systematics and relationships. The Island Arc 3:329-360 [M. Uhen/M. Uhen]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 59181: authorized by Mark Uhen, entered by Mark Uhen on 20.03.2006
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Protozoa | |
Stichocorys delmontensis radiolarian | |
Bivalvia | |
"Palliolum (Deltopecten) peckhami" = Delectopecten peckhami
"Palliolum (Deltopecten) peckhami" = Delectopecten peckhami Gabb 1869 scallop | |
"Solemya tokunagai" = Acharax johnsoni
"Solemya tokunagai" = Acharax johnsoni Dall 1891 Awning Clam | |
Chondrichthyes | |
"Carcharocles megalodon" = Otodus megalodon
"Carcharocles megalodon" = Otodus megalodon Agassiz 1835 megalodon | |
Mammalia | |
Cetacea indet. Brisson 1762 whale | |
"Allodesmus sadoensis n. sp." = Allodesmus sinanoensis
"Allodesmus sadoensis n. sp." = Allodesmus sinanoensis Nagao 1941 pinniped |