Kasumi Quarry, Kinshozan, Akasaka, Gifu Prefecture (Permian of Japan)

Where: Japan (35.4° N, 136.6° E: paleocoordinates 19.7° N, 107.3° E)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Akasaka Formation, Roadian (272.3 - 268.8 Ma)

• Lower Permian Parafusulina zone

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, shelly/skeletal, black lime mudstone

• Black limestone is a biomicrite

Size class: macrofossils

Collected by K. Ozaki in 1966

• Collected Aug 23, 1966

Primary reference: K. Ozaki. 1968. Problematical fossils from the Permian limestone of Akasaka, Gifu Prefecture. Yokohama National University, Science Reports, Section 2, Biological and Geological Sciences 14:27-33 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 116063: authorized by Matthew Clapham, entered by Matthew Clapham on 05.09.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Myalinida - Alatoconchidae
Shikamaia akasakaensis n. gen. n. sp.
Shikamaia akasakaensis n. gen. n. sp. Ozaki 1968 clam