Kinshozan, Kuro zone, Akasaka, Gifu Prefecture (Permian of Japan)

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: Akasaka Formation, Capitanian (264.3 - 259.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Primary reference: I. Hayasaka. 1925. On some Paleozoic molluscs of Japan. 1. Lamellibranchiata and Scaphopoda. Science Reports of the Tohoku Imperial University. 2nd series, Geology 8(2):1-29 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 109637: authorized by Matthew Clapham, entered by Matthew Clapham on 19.05.2011, edited by Pete Wagner

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Cerithimorpha - Orthonemidae
"Spiromphalus yabei n. gen. n. sp." = Palaeostylus pupoides3
"Spiromphalus yabei n. gen. n. sp." = Palaeostylus pupoides3 Mansuy 1914 snail
 Caenogastropoda - Goniasmatidae
"Murchisonia yabei n. sp." = Akasakiella yabei4
"Murchisonia yabei n. sp." = Akasakiella yabei4 Hayasaka 1943 snail
 Bellerophontida - Bellerophontidae
"Bellerophon jonesianus" = Waagenella jonesianus4
"Bellerophon jonesianus" = Waagenella jonesianus4 de Koninck 1863 snail
includes var. hiulciformis
 Murchisoniina - Lophospiridae
"Solenospira" multicostata n. sp.4
"Solenospira" multicostata n. sp.4 Hayasaka 1943 snail
 Murchisoniina - Phymatopleuridae
"Pleurotomaria aff. multicarinata" = Worthenia multicarinata4
"Pleurotomaria aff. multicarinata" = Worthenia multicarinata4 Mansuy 1912 snail
 Murchisoniina - Porcelliidae
Porcellia puzoidea n. sp.5
Porcellia puzoidea n. sp.5 Hayasaka 1955 snail
 Murchisoniina - Gosseletinidae
"Pleurotomaria yokoyamai n. sp." = Nipponomaria yokoyamai4
"Pleurotomaria yokoyamai n. sp." = Nipponomaria yokoyamai4 Hayasaka 1943 snail
 Neritoidea - Naticopsidae
Naticopsis fasciata n. sp.4, "Naticopsis cf. praealta" = Naticopsis (Naticopsis) praealta4, Naticopsis wakimizui n. sp.4, Naticopsis minoensis n. sp.4
Naticopsis fasciata n. sp.4 Hayasaka 1943 snail
"Naticopsis cf. praealta" = Naticopsis (Naticopsis) praealta4 Wanner 1922 snail
Naticopsis wakimizui n. sp.4 Hayasaka 1943 snail
Naticopsis minoensis n. sp.4 Hayasaka 1943 snail
 Neritoidea - Neritariidae
"Naticella japonica n. sp." = Asamiella japonica4
"Naticella japonica n. sp." = Asamiella japonica4 Hayasaka 1943 snail
 Cycloneritida - Trachyspiridae
"Trachydomia conica n. sp." = Trachyspira conica4, "Trachydomia magna n. sp." = Trachyspira magna2
"Trachydomia conica n. sp." = Trachyspira conica4 Hayasaka 1943 snail
"Trachydomia magna n. sp." = Trachyspira magna2 Hayasaka 1937 snail
Bivalvia
 Solenida - Solenomorphidae
Solenomorpha elegantissima n. sp.
Solenomorpha elegantissima n. sp. Hayasaka 1925 clam
 Trigoniida - Schizodidae
"Myophoria japonica n. sp." = Schizodus japonicus
"Myophoria japonica n. sp." = Schizodus japonicus Hayasaka 1925 clam
 Ostreida - Bakevelliidae
"Liebea sinensis" = Permoperna trapezoidalis
"Liebea sinensis" = Permoperna trapezoidalis Kayser 1883 oyster
 Arcida - Parallelodontidae
"Parallelodon obsoletiformis n. sp." = Grammatodon (Cosmetodon) obsoletiformis
"Parallelodon obsoletiformis n. sp." = Grammatodon (Cosmetodon) obsoletiformis Hayasaka 1925 clam
Scaphopoda
 Dentaliida - Prodentaliidae
Prodentalium sp.1, "Dentalium neornatum n. sp." = Prodentalium neornatum, "Dentalium akasakensis n. sp." = Prodentalium akasakensis
Prodentalium sp.1 Young 1942 tusk shell
"Dentalium neornatum n. sp." = Prodentalium neornatum Hayasaka 1925 tusk shell
"Dentalium akasakensis n. sp." = Prodentalium akasakensis Hayasaka 1925 tusk shell
 Dentaliida - Dentaliidae
Minodentalium hayasakai1
Minodentalium hayasakai1 Asato and Kase 2021 tusk shell
1Asato and Kase 2021; 2Hayasaka 1937; 3Hayasaka 1939; 4Hayasaka 1943; 5Hayasaka 1955