Where: Japan (35.4° N, 136.6° E: paleocoordinates 23.1° N, 110.6° E)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Yabeina globosa foram zone, Akasaka Formation, Capitanian (264.3 - 259.5 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: shallow subtidal; lithified, silty packstone
Size class: macrofossils
Collected by T. Asami, A. Hosono
• Specimens in Asami Fossil Museum
Primary reference: K. Nakazawa. 2007. Minute bivalve fossils from the Permian Akasaka Limestone, Central Japan, (Appendix) Description of a new species of Pernopecten. Earth Science (Chikyu Kagaku) 61:187-201 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 109667: authorized by Matthew Clapham, entered by Matthew Clapham on 20.05.2011
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
| |
"Bellerophon jonesianus" = Waagenella jonesianus2
| |
| |
| |
| |
| |
Glabrocingulum sp.2, Shwedagonia collabra2, "Zhonghuaspira yokoyamai" = Nipponomaria yokoyamai2, "Glyptotomaria (? Dictyotomaria) sp." = Dictyotomaria2
| |
| |
| |
Anomphalus japonicus n. sp.2
| |
| |
| |
Anematina parva n. sp.2
| |
| |
| |
Coeloconulus panae n. gen. n. sp.2
| |
| |
Naticopsis "sp. 1"2, Naticopsis "sp. 2"2, ? Naticopsis "operculum A"2, ? Naticopsis "operculum B"2, Naticopsis cf. tschernyschewi2
| |
| |
| |
| |
Platyzona eulkaiensis2, Cerithiozone ornata n. gen. n. sp.2, Akasakiella yabei2, Costataenia hayasakai n. gen. n. sp.2, Cerithioides sp.2, Cerithioides angulatum n. sp.2, Trypanocochlea parva n. sp.2, Stegocoelia akasakaensis n. sp.2, Goniasma fortecarinata n. sp.2, ? Goniasma nodifera n. sp.2
| |
? Vebericochlis sp.2, Vebericochlis spp.2, Vebericochlis mazaevi n. sp.2, Orthonema "sp. 1"2, Orthonema "sp. 2"2, Yochelsonistylus felixi n. gen. n. sp.2, Yochelsonistylus seussae n. sp.2
| |
| |
Protorcula permiana n. sp.2
| |
| |
| |
Acteonina koizumii n. sp.2
| |
Knightella sp.2, Knightella hydrobiformis n. sp.2, Palaeostylus "sp. 1"2, Palaeostylus "sp. 2"2, Palaeostylus lateapicatus n. sp.2, Palaeostylus minutus n. sp.2, ? Palaeostylus irregularis n. sp.2, Palaeostylus attenuatus n. sp.2, Palaeostylus aff. dussaulti2, Palaeostylus pupoides2
| |
Bivalvia | |
Nuculopsis sp. Girty 1912 nut clam | |
Pernopecten terukoae n. sp.
Pernopecten terukoae n. sp. Nakazawa 2007 scallop | |
Grammatodon (Cosmetodon) obsoletiformis Hayasaka 1925 clam | |
"Vacunella" sp. Waterhouse 1965 clam | |
? Scaldia sp. de Ryckholt 1847 clam | |
Polyplacophora | |
Gifuchiton pentagonus n. gen. n. sp.1
| |
Crassitudochiton plakos n. gen. n. sp.1
| |
|