Sandstone block off the southern coast of Kuji (Cretaceous of Japan)

Where: Japan (40.0° N, 142.3° E: paleocoordinates 54.9° N, 134.5° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Mikasa Formation, Cenomanian (100.5 - 93.9 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: shallow subtidal; gray, calcareous sandstone

• shallow marine fauna
• The sandstone block is dark grey, fine-grained, more or less stratified and well sorted with remarkable calcarous cement.

Size class: macrofossils

Collection methods: bulk

Primary reference: I. Hayami and T. Kase. 1981. Cenomanian molluscs in a sandstone block from the sea bottom off the southern coast of Kuji, northeast Japan. Transactions and Proceedings of the Palaeontological Society of Japan, NS 121:29-50 [M. Aberhan/T. Schossleitner/T. Schossleitner]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 141571: authorized by Martin Aberhan, entered by Thomas Schossleitner on 29.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Arcida - Glycymerididae
"Glyceris (Glycymerita) aff. hokkaidoensis" = Glycymeris (Glycymerita)
"Glyceris (Glycymerita) aff. hokkaidoensis" = Glycymeris (Glycymerita) clam
 Myalinida - Inoceramidae
Inoceramus (Birostrina) cf. concentricus Parkinson 1819 clam
Inoceramus (Birostrina) cf. concentricus nipponicus
 Pectinida -
 Carditida - Crassatellidae
 Cardiida - Mactridae
Cymbophora sp. Gabb 1869 clam
 Cardiida - Veneridae
 Pholadomyida - Pholadomyidae
Goniomya (Goniomya) sp. Agassiz 1842 clam
 Lucinida - Mactromyidae
Thetis japonica Hayami 1975 clam
 Trigoniida - Megatrigonioidae
Gastropoda
 Stromboidea - Aporrhaidae
 Heterostropha - Ringiculidae
Avellana sp. d'Orbigny 1842 snail
 Trochoidea - Trochidae