Where: Japan (38.8° N, 141.6° E: paleocoordinates 38.5° N, 118.8° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Columbites parisianus ammonoid zone, Osawa Formation, Spathian (251.3 - 247.2 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified siliciclastic sediments
Size class: macrofossils
Preservation: mold/impression
Primary reference: M. Murata. 1973. Triassic fossils from the Kitakami Massif, northeast Japan, Part 1, Pelecypods and Brachiopods of the Osawa and the Fukkoshi Formations. Science Reports of the Tohoku University. Second Series, Geology. Special Volume (Hatai Memorial Volume) 6:267-275 [M. Clapham/M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 113887: authorized by Matthew Clapham, entered by Matthew Clapham on 06.08.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Promyalina sp. Kittl 1903 clam | |
? Leptochondria hataii n. sp.
? Leptochondria hataii n. sp. Murata 1973 scallop |