Also known as Ikushunbetsu River
Where: Hokkaido, Japan (43.2° N, 142.5° E: paleocoordinates 48.1° N, 131.5° E)
• coordinate estimated from map
When: Kashima Formation (Yezo Group), Late/Upper Santonian to Late/Upper Santonian (85.8 - 70.6 Ma)
• Santonian-Campanian boundary interval
Environment/lithology: offshore; mudstone
Size class: macrofossils
Primary reference: M. W. Caldwell, T. Konishi, I. Obata and K. Muramoto. 2008. A new species of Taniwhasaurus (Mosasauridae, Tylosaurinae) from the Upper Santonian-Lower Campanian (Upper Cretaceous) of Hokkaido, Japan. Journal of Vertebrate Paleontology 28(2):339-348 [P. Mannion/P. Mannion]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 115410: authorized by Philip Mannion, entered by Philip Mannion on 01.09.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Reptilia | |
Taniwhasaurus mikasaensis Caldwell et al. 2008 mosasaur MCM.M10 (two large dorsal vertebrae) and MCM.A1008 (two large dorsal vertebrae, one fractured posterior caudal, two large caudals with haemapophyses) - probably two individuals
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