Haboro area (Cretaceous to of Japan)

Also known as Taniwhasaurus mikasaensis referred material locality

Where: Hokkaido, Japan (44.3° N, 141.9° E: paleocoordinates 49.0° N, 130.5° E)

• coordinate based on nearby landmark

When: Haborogawa Formation (Upper Yezo Group), Late/Upper Santonian to Late/Upper Santonian (85.8 - 70.6 Ma)

• Santonian-Campanian boundary interval

Environment/lithology: offshore; mudstone

• the inner-outer shelf
• sandstone concretion eroded free of the surrounding strata

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 115409: authorized by Philip Mannion, entered by Philip Mannion on 01.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Squamata - Mosasauridae
Taniwhasaurus mikasaensis
Taniwhasaurus mikasaensis Caldwell et al. 2008 mosasaur
MCM.A600 (disarticulated skull elements including a parietal, left quadrate, left postorbitofrontal, jugal, ectopterygoid, coronoid, and possible left squamosal)