Where: Yamaguchi, Japan (34.0° N, 130.9° E: paleocoordinates 39.2° N, 127.4° E)
• 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; sandstone
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 51447: authorized by Austin Hendy, entered by Austin Hendy on 05.06.2005
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Glycymeris cisshuensis Makiyama 1926 clam | |
Chlamys ashiyaensis Nagao 1928 scallop | |
"Venericardia (Cyclocardia) cf. vestitoides" = Cyclocardia
"Venericardia (Cyclocardia) cf. vestitoides" = Cyclocardia clam | |
? Lucinoma sp. Dall 1901 clam | |
Macrocallista hanzawai Nagao 1928 venus clam
Pitar ashiyaensis venus clam
"Dosinia (Phacosoma) chikuzenensis" = Dosinia nomurai Otuka 1934 venus clam | |
Tellina sp. Linnaeus 1758 tellin clam
Macoma nagaoi tellin clam | |
Solen connectens clam | |
Acila aff. ashiyaensis divaricate nutclam | |
Yoldia (Tepidoleda) hikoshimensis Hirayama 1956 clam | |
Gastropoda | |
Turritella karatsuensis Nagao 1928 turret shell | |
Semicassis kanmonensis snail | |
Siphonalia sp. Adams 1863 true whelk
Antillophos fusiforme true whelk
Ancistrolepis sp. Dall 1895 true whelk | |
Euspira karatsuensis, "Euspira ashiyaensis" = Euspira meisensis
Euspira karatsuensis moon snail
"Euspira ashiyaensis" = Euspira meisensis Makiyama 1926 moon snail |