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Kaseki-kabe (facies III), Shiramine (Cretaceous of Japan)

Also known as Kasekiheki

Where: Ishikawa, Japan (36.2° N, 136.6° E: paleocoordinates 44.6° N, 138.5° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Kuwajima Formation (Tetori Group), Valanginian (140.2 - 136.4 Ma)

• "upper horizon" of Kuwajima Formation, uppermost part of Itoshiro Subgroup, Tetori Group. Described as "lower Neocomian", and older that "late Barremian", but authors' use of "Neocomian" seems to include some of the Gallic as well.

• group of beds-level stratigraphic resolution

Environment/lithology: mire or swamp; gray, green, blue, silty, sandy mudstone and sandstone

• "deposited in the channels of braided rivers and flood plains", specifically in a "vegetated swamp"
• "alternations of massive sandstones, fine-grained sandstones and mudstones"; facies III = "massive with occasional thin bedding. They consist of well-sorted silty mud and occasional angular very fine-grained quartz sands. The mud is normally dark greenish-grey in colour, and frequently has a blue-ish tint."

Size classes: macrofossils, mesofossils

Preservation: adpression

Collected in 1985, 1997-2009

Collection methods: quarrying, surface (in situ), mechanical,

Primary reference: M. Matsukawa and I. Obata. 1994. Dinosaurs and sedimentary environments in the Japanese Cretaceous: a contribution to dinosaur facies in Asia based on molluscan palaeontology and stratigraphy. Cretaceous Research 15(1):101-125 [M. Carrano/M. Carrano] more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 32324: authorized by Matthew Carrano, entered by Matthew Carrano on 25.06.2003, edited by Roger Benson, Jonathan Tennant and Richard Butler

Creative Commons license: CC BY (attribution)