Where: Hokkaido, Japan (44.7° N, 142.1° E: paleocoordinates 53.5° N, 140.2° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Kamiji Formation (Lower Yezo Group), Early/Lower Albian (112.0 - 109.0 Ma)

• The Kamiji Formation is the lowest unit of the Yezo Group. Sample from unit 3 of the Kamiji Formation

• bed-level stratigraphic resolution

Environment/lithology: marine; lithified sandstone

Size class: macrofossils

Primary reference: Y. Iba. 2009. An Early Albian Arctic-type ammonite Arcthoplites from Hokkaido, northern Japan, and its paleobiogeographic and paleoclimatological implications. Journal of Asian Earth Sciences 34:46-50 [W. Kiessling/U. Merkel]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 92724: authorized by Wolfgang Kiessling, entered by Uta Merkel on 26.11.2009

Creative Commons license: CC BY (attribution)