Niseu River, Biratori Town (Miocene to of Japan)

Where: Japan (42.8° N, 142.4° E: paleocoordinates 43.5° N, 140.6° E)

• coordinate stated in text

When: Takinoue Formation, Burdigalian to Burdigalian (20.4 - 13.8 Ma)

• late Burdigalian to the early Lang- hian according to GTS2012 and is concordant with previ- ously estimated ages (late Early–early Middle Miocene) of the Takinoue Formation

Environment/lithology: marine; calcareous siltstone

Size class: macrofossils

Primary reference: Y. Tanaka, I. Motoyama, and K. Sakurai. 2024. A new late Early to early Middle Miocene fossil baleen whale aff. Isanacetus laticephalus specimen from Hokkaido, Japan. Paleontological Research 28(4):481-490more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 236002: authorized by Mark Uhen, entered by Mark Uhen on 06.09.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
unclassified
  -
Actinomiidae indet., Spumellaria sp., ? Cyrtocapsella sp., Lophophaeninae indet., Nassellaria indet.
Actinomiidae indet.
Actinomiidae/Entactinaria spp.
Protozoa
 Nassellaria - Eucyrtiidae
Dictyophimus sp.
Dictyophimus sp. Ehrenberg 1846 radiolarian
 Nassellaria - Eucyrtidiidae
Stichocorys sp.
Stichocorys sp. Haeckel 1881 radiolarian
 Nassellaria - Acropyramididae
Bathropyramis woodringi, Cornutella profunda
Cornutella profunda radiolarian
 Nassellaria - Artostrobiidae
Siphocampe lineata
Siphocampe lineata radiolarian
 Nassellaria - Triospyrididae
? Dendrospyris sp.
? Dendrospyris sp. Haeckel 1881 radiolarian
 Nassellaria - Theopiliidae
? Lipmanella sp., Cycladophora cosma, Cycladophora ochotica, Cycladophora sp.
? Lipmanella sp. Loeblich and Tappan 1961 radiolarian
Cycladophora cosma radiolarian
subspecies cosma
Cycladophora sp. Ehrenberg 1847 radiolarian
 Nassellaria - Carpocaniidae
Carpocaniidae indet., Carpocanarium papillosum
Carpocaniidae indet. Haeckel 1881 radiolarian
 Entactinaria - Hexalonchidae
Hexacontium dionysus, Hexacontium sp.
Hexacontium sp. Haeckel 1881 radiolarian
 Spumellaria - Litheliidae
Lithelius minor
Lithelius minor radiolarian
 Spumellaria - Pyloniidae
Pyloniidae indet., Larcopyle polyacantha, Larcopyle weddellium, Larcopyle sp.
Pyloniidae indet. Haeckel 1881 radiolarian
Pyloniidae/Litheliidae spp.
Larcopyle sp. Dreyer 1889 radiolarian
 Spumellaria - Stylosphaeridae
? Stylosphaera sp., ? Stylatractus sp.
? Stylosphaera sp. Ehrenberg 1847 radiolarian
? Stylatractus sp. Haeckel 1887 radiolarian
 Spumellaria - Spongodiscidae
Spongodiscidae sp., Stylodictya sp., Spongotrochus glacialis
Spongodiscidae sp. Haeckel 1862 radiolarian
Stylodictya sp. Ehrenberg 1847 radiolarian
 Radiolaria - Actinommidae
Actinomma sp.
Actinomma sp. Haeckel 1862 radiolarian
Mammalia
 Cetacea -
aff. Isanacetus laticephalus
aff. Isanacetus laticephalus Kimura and Ozawa 2002 whale