Locality 10 - Shimonoseki City (Ashiya Gp) (Oligocene of Japan)

Where: Yamaguchi, Japan (34.0° N, 130.9° E)

• Paleocoordinates: 35.1° N, 128.0° E (Wright 2013)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Ashiya Group, Late/Upper Oligocene (28.4 - 23.0 Ma)

• No stratigraphic data available as manuscript is in Japanese.

• bed-level stratigraphic resolution

Environment/lithology: coastal; medium-grained sandstone

• Sedimentary facies and molluscan assemblages suggest an environment in the upper euneritic zone of a temperate to subtropical sea.
• SPECIFIC: medium sandstone. GENERAL: The Ashiya Group is characterised by a sandstone-dominant shallw marine sequence (about 150 m thick), in which sedimentary facies include cross-stratified sandstone, parallel stratified sandstone, bioturbated sandstone, and sandstone/siltstone couplet facies.

Size class: macrofossils

Collection methods: bulk, quarrying,

• No collection data available as manuscript is in Japanese. Material is reposited in the Dept of Earth and Planetary Sciences, Faculty of Science, Kyushu University, and in Shimonoseki City Archaeological Museum, Shimonoseki.

Primary reference: K. Okamoto and T. Sakai. 1995. Sedimentary facies and fossil molluscs of the Oligocene Ashiya Group in the Hikoshima Takenokojim and Nishiyama area, Shimonoseki City, Southwest Japan. Bulletin of the Mizunami Fossil Museum 22:19-50 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 51448: authorized by Austin Hendy, entered by Austin Hendy on 05.06.2005

Creative Commons license: CC0 (CC0)

Taxonomic list

• Taxonomic list is exhaustive for mollusca and includes other groups (Penguins, Sharks etc). Nomenclature is of a high quality.
Show authors, comments, and common names
Bivalvia
 Arcida - Glycymerididae
Glycymeris (Veletuceta) cisshuensis
 Lucinida - Lucinidae
Lucinoma nagaoi
Lucinoma nagaoi Oyama and Mizuno 1958 clam
 Cardiida - Veneridae
"Dosinia (Phacosoma) chikuzenensis" = Dosinia nomurai, Pitar sp.
"Dosinia (Phacosoma) chikuzenensis" = Dosinia nomurai Otuka 1934 venus clam
Pitar sp. Römer 1857 venus clam