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
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 | |
Foraminifera | |
Globothalamea | |
Cibicides sp. Monfort 1808 | |
Echinoidea | |
Linthia sp. Desor 1853 heart urchin | |
Chondrichthyes | |
Rajidae indet. Blainville 1816 skate | |
Squalus serriculus Jordan and Hanibal 1923 dogfish shark | |
Dalatias licha Bonnaterre 1788 shark | |
Carcharhinus egatoni requiem shark
Carcharhinus priscus Agassiz 1843 requiem shark | |
Odontaspis volax sand tiger shark | |
"Eugomphodus acutissima" = Carcharias
"Eugomphodus acutissima" = Carcharias sand shark | |
Isurus desori Sismonda 1849 mackerel shark
Isurus planus Agassiz 1856 mackerel shark
"Isurus hastalis" = Carcharodon hastalis Agassiz 1838 white shark | |
"Carcharocles megalodon" = Otodus megalodon, Parotodus benedeni
"Carcharocles megalodon" = Otodus megalodon Agassiz 1835 megalodon one fragmental tooth specimen (KUE1709)
Parotodus benedeni Le Hon 1871 mackerel shark | |
Scaphopoda | |
Fissidentalium yokokamai tusk shell | |
Bivalvia | |
"Lucinoma acutilineatum" = Lucinoma acutilineata
"Lucinoma acutilineatum" = Lucinoma acutilineata Conrad 1849 clam | |
Gloripallium crassivenium Yokoyama 1929 scallop |