Wajima City (Loc. 1) (Miocene of Japan)

Where: Hokuriku, Japan (37.4° N, 136.9° E: paleocoordinates 39.8° N, 134.4° E)

• coordinate based on nearby landmark

When: CN5a nannofossil zone, Wajimazaki Formation, Serravallian (13.8 - 11.6 Ma)

• Middle Miocene. CN5a of Calcareous Nannoplankton Zone by Okada and Bukry (Kami et al., 1981).

• formation-level stratigraphic resolution

Environment/lithology: calcareous sandstone

• Fine-grained calcareous sandstone and medium-grained sandstone

Size class: macrofossils

Collection methods: The described specimens are reposited at the Department of Earth Sciences, Faculty of Science, Kanazawa University.

Primary reference: H. Karasawa. 1989. Late Cenozoic Elasmobranchs from the Hokuriku district, central Japan. The Science reports of the Kanazawa University 34(1):1-57 [C. Jaramillo/C. Pimiento]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 161489: authorized by Carlos Jaramillo, entered by Catalina Pimiento on 06.09.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Rotaliina
 Planorbulinacea - Cibicididae
Cibicides sp. Monfort 1808
 Rotaliina - Bolivinidae
Bivalvia
 Pectinida - Pectinoidae
Gloripallium crassivenium Yokoyama 1929 scallop
 Lucinida - Lucinidae
"Lucinoma acutilineatum" = Lucinoma acutilineata
"Lucinoma acutilineatum" = Lucinoma acutilineata Conrad 1849 clam
Scaphopoda
 Dentaliida - Dentaliidae
Chondrichthyes
 Odontaspidida - Carcharodontidae
"Isurus hastalis" = Cosmopolitodus hastalis
"Isurus hastalis" = Cosmopolitodus hastalis Agassiz 1843 elasmobranch
 Plagiostomi - Squalidae
Dalatias licha Bonnaterre 1788 dogfish shark
Squalus serriculus Jordan and Hanibal 1923 dogfish shark
 Rajiformes - Rajidae
Rajidae indet. Blainville 1816 skate
 Lamniformes - Otodontidae
Parotodus benedeni, "Carcharocles megalodon" = Otodus megalodon
Parotodus benedeni Le Hon 1871 mackerel shark
"Carcharocles megalodon" = Otodus megalodon Agassiz 1843 megalodon
one fragmental tooth specimen (KUE1709)
 Lamniformes - Lamnidae
Isurus desori Sismonda 1849 mako shark
Isurus planus Agassiz 1856 mako shark
 Lamniformes - Odontaspididae
Odontaspis volax, "Eugomphodus acutissima" = Carcharias
Odontaspis volax sand tiger shark
"Eugomphodus acutissima" = Carcharias sand shark
 Carchariniformes - Carcharhinidae
Carcharhinus egatoni requiem shark
Carcharhinus priscus Agassiz 1843 requiem shark
Echinoidea
 Spatangoida - Schizasteridae
Linthia sp. Desor 1853 heart urchin