Ozashi area, NE Japan, Fk-1a, b (Triassic of Japan)

Where: Miyagi prefecture, Japan (38.6° N, 141.5° E: paleocoordinates 41.7° N, 119.8° E)

• coordinate stated in text

When: Fukkoshi Formation, Anisian (247.2 - 242.0 Ma)

• age of Formation based on presence of ammonoids (Hollandites sp., Balatonites cf. kitakamicus, Gymnites cf. watanabei)

Environment/lithology: deep-water; lithified sandstone and lithified, sandy mudstone

• Fukkoshi Formation represents the submarine fan compley deposited in a deep-water environment
• ... that mainly consists of sandstone and alternationg beds of sandstone and mudstone. The deposits intercalate with thick laminated sandy mudstone beds, about 30 meters in total thickness, in its middle part

Size class: macrofossils

Collected by the authors

Primary reference: S. Niko and M. Ehiro. 2020. Trematoceras watanabei, a new orthoconic nautiloid species from the Middle Triassic Fukkoshi Formation, Miyagi Prefecture, Northeast Japan. Bull. Tohoku Univ. Museum 19:1-6 [B. Seuss/B. Seuss]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 214972: authorized by Barbara Seuss, entered by Barbara Seuss on 26.10.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Cephalopoda
 Pseudorthocerida - Trematoceratidae
Trematoceras watanabei n. sp.
Trematoceras watanabei n. sp. Niko and Ehiro 2020