Where: Iwate, Japan (40.0° N, 141.8° E: paleocoordinates 52.8° N, 141.5° E)
• coordinate estimated from map
• local area-level geographic resolution
When: Tanohata Formation (Miyako Group), Aptian (125.0 - 113.0 Ma)
• formation-level stratigraphic resolution
Environment/lithology: marine; calcareous sandstone
Size class: macrofossils
Preservation: cast, mold/impression
Primary reference: I. Hayami. 1975. A systematic survey of the Mesozoic Bivalvia from Japan. The University Museum, The University of Tokyo, Bulletin (10) [M. Aberhan/S. Nurnberg/S. Nurnberg]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 40554: authorized by Martin Aberhan, entered by Sabine Nürnberg on 25.06.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Amphidonte (Ceratostreon) yabei" = Ceratostreon, Amphidonte (Amphidonte) subhaliotoidea, "? Catinula oshimensis" = Gryphaea (Catinula)
"Amphidonte (Ceratostreon) yabei" = Ceratostreon oyster
"? Catinula oshimensis" = Gryphaea (Catinula) oyster | |
? Ostrea aff. cunabula oyster
Lopha (Actinostreon) nagaoi oyster | |
Limatula nagaoi file clam
Limatula cf. tombeckiana file clam | |
Spondylus (Spondylus) decoratus scallop
Prohinnites cf. favrinus scallop | |
Neithea (Neithea) ficalhoi Choffat 1888 scallop | |
| |
Anthonya subcantiana clam | |
Myoconcha modesta clam | |
Globocardium sphaeroideum Forbes 1845 cockle | |
Nagaoella corrugata venus clam | |
Praecaprotina yaegashii rudist | |
Nipponitrigonia kikuchiana Yokoyama 1891 clam |