Also known as Loc. W4A
Where: Japan (45.5° N, 141.9° E: paleocoordinates 50.1° N, 130.0° E)
• coordinate based on nearby landmark
• local area-level geographic resolution
When: Ohimisaki Formation, Early/Lower Campanian (83.5 - 70.6 Ma)
• STRATIGRAPHIC RELATIONS: From "Member A" of the Ohimisaki Fm, which is overlain by the Orannai Fm. AGE: Early Campanian, on the basis of ammonite biostratigraphy. STRATIGRAPHIC POSITION: From base of regional section.
• member-level stratigraphic resolution
Environment/lithology: coastal; lithified, nodular, calcareous mudstone
Size class: macrofossils
Collection methods: COLLECTOR: Not stated, but presumably the authors T. Matsumoto and T. Miyauchi. REPOSITORY: Dept. of Geology, Kyushu University, Japan.
Primary reference: T. Matsumoto. 1984. Part I. Ammonites from the Upper Campanian of the Teshio Mountains. Palaeontological Society of Japan Special Papers 27:5-32 [A. Hendy/A. Hendy/A. Hendy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 87034: authorized by Austin Hendy, entered by Austin Hendy on 01.03.2009
Creative Commons license: CC BY (attribution)