NSM PCl 4-15-3. Ganseki-zawa Valley (Cretaceous of Japan)

Also known as = Loc. 319 in Futakami (1986)

Where: Hokkaido, Japan (43.3° N, 142.1° E: paleocoordinates 51.1° N, 134.6° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Subprionocyclus minimus ammonoid zone, Late/Upper Turonian (93.5 - 89.3 Ma)

• Subprionocyclus minimus Subzone of Inoceramus teshioensis

• group of beds-level stratigraphic resolution

Environment/lithology: bioturbated, sandy mudstone

• Key indicates sandy mudstone with bioturbation

Size class: macrofossils

Primary reference: F. Kawabe and Y. Shigeta. 2001. The genus Hourcquia (Ammonoidea, Pseudotissotiidae) from the Upper Cretaceous of Hokkaido, Japan: biostratigraphic and biogeographic implications. Paleontological Research 5(2):101-109 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 200137: authorized by Pete Wagner, entered by Pete Wagner on 20.03.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ammonitida - Collignoniceratidae
"Subprionocyclus minimus" = Reesidites minimus
"Subprionocyclus minimus" = Reesidites minimus Hayasaka and Fukada 1951 ammonite
 Ammonitida - Pseudotissotiidae
"Hourcquia ingens" = Hourcquia mirabilis
"Hourcquia ingens" = Hourcquia mirabilis Collignon 1965 ammonite
 Ammonitida - Desmoceratidae
Jimboiceras planulatiforme Jimbo 1894 ammonite
 Ammonitida - Tetragonitidae
Tetragonites glabrus Jimbo 1910 ammonite
 Ammonitida - Baculitidae
Baculites undulatus d'Orbigny 1850 ammonite
Bivalvia
 Myalinida - Inoceramidae
Inoceramus teshioensis Nagao and Matsumoto 1939 clam