Hakui-gun (Loc. 3) (Miocene of Japan)

Where: Hokuriku, Japan (37.2° N, 136.7° E: paleocoordinates 39.8° N, 134.1° E)

• coordinate stated in text

When: CN4-CN5a nannofossil zone, Sekinobana Formation, Middle Miocene (16.0 - 11.6 Ma)

• CN4 to CN5a of Calcareous Nannoplankton Zone by Okada and Bukry (Kami et a!. , 1981) .

• formation-level stratigraphic resolution

Environment/lithology: conglomeratic sandstone

• Pebbly conglomerate, coarse-grained sandstone, coquina and fine to 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 161492: authorized by Carlos Jaramillo, entered by Catalina Pimiento on 06.09.2014

Creative Commons license: CC BY (attribution)

Taxonomic list

unclassified
  -
Globothalamea
 Rotaliida - Discorbidae
 Rotaliida - Cibicididae
Cibicides sp. Monfort 1808
Foraminifera
 Globigerinoidea - Globigerinidae
Globigerina sp. d'Orbigny 1826
Bivalvia
 Pectinida - Pectinoidae
Chlamys sp. Röding 1798 scallop
Gloripallium crassivenium Yokoyama 1929 scallop
 Ostreida - Ostreidae
Ostrea sp. Linnaeus 1758 oyster
 Lucinida - Lucinidae
"Lucinoma acutilineatum" = Lucinoma acutilineata
"Lucinoma acutilineatum" = Lucinoma acutilineata Conrad 1849 clam
Scaphopoda
 Dentaliida - Dentaliidae
Echinoidea
 Spatangoida - Schizasteridae
Linthia sp. Desor 1853 heart urchin
Chondrichthyes
 Myliobatiformes - Myliobatidae
Rhinoptera sp. Cuvier 1829 cownose ray
 Squatiniformes - Squatinidae
Squatina sp. Dumeril 1806 angel shark
 Squaliformes - Dalatiidae
Dalatias licha Bonnaterre 1788 shark
 Hexanchiformes - Hexanchidae
Hexanchus gigas Sismonda 1857 sixgill shark
 Pristiophoriformes - Pristiophoridae
Pristiophorus sp. Bleeker 1859 saw shark
 Carcharhiniformes - Carcharhinidae
Carcharhinus priscus Agassiz 1843 requiem shark
Carcharhinus egertoni Agassiz 1843 requiem shark
 Carcharhiniformes - Hemigaleidae
Hemipristis serra Agassiz 1835 ground shark
 Carcharhiniformes - Galeocerdidae
Galeocerdo aduncus Agassiz 1835 tiger shark
 Lamniformes - Odontaspididae
Odontaspis volax sand tiger shark
 Lamniformes - Carchariidae
"Eugomphodus acutissima" = Carcharias, "Eugomphodus cuspidatus" = Carcharias
"Eugomphodus acutissima" = Carcharias sand shark
"Eugomphodus cuspidatus" = Carcharias sand shark
 Lamniformes - Lamnidae
Isurus planus Agassiz 1856 mackerel shark
Isurus desori Sismonda 1849 mackerel shark
"Isurus hastalis" = Carcharodon hastalis Agassiz 1838 white shark
 Lamniformes - Alopiidae
Alopias superciliosus Lowe 1840 thresher shark
 Lamniformes - Otodontidae
"Carcharocles megalodon" = Otodus megalodon
"Carcharocles megalodon" = Otodus megalodon Agassiz 1835 megalodon
Two fragmental teeth specimens (KUE1677, 1642)
Mammalia
 Perissodactyla - Paleoparadoxiidae
Paleoparadoxia sp. Reinhart 1959 desmostylian