Sendai (Pliocene of Japan)

Where: Japan (38.3° N, 140.8° E: paleocoordinates 39.0° N, 140.0° E)

• coordinate estimated from map

When: Tatsunokuchi Formation, Early/Lower Pliocene (5.3 - 3.6 Ma)

Environment/lithology: shallow subtidal; lithology not reported

• open to shallow water (changed over time), warm water

Size class: macrofossils

Preservation: original phosphate

Primary reference: K. Hatai, S. Hayasaka, and K. Masuda. 1963. Some fossil tympanics from the Mizuho period of northern Japan. Saito Ho-on Kai Museum Research Bulletin 32:5-14 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 47462: authorized by Mark Uhen, entered by Mark Uhen on 25.02.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Cetacea - Delphinidae
"Delphinus" rikuzenensis n. sp. Hatai et al. 1963 common dolphin
 Cetacea - Balaenopteridae
"Megaptera" sp.3 Gray 1846 humpback whale
 Cetacea - Cetotheriidae
Herpetocetus sendaicus2 Hatai et al. 1963 whale
 Cetacea -
Burtinopsis sp.3 Van Beneden 1872 whale
 Carnivora -
Otarioidea indet.1 Gray 1825 pinniped