Nakijin (Pleistocene of Japan)

Where: Ryukyu Islands, Japan (26.7° N, 128.0° E: paleocoordinates 26.8° N, 127.7° E)

• coordinate estimated from map

When: Guga Formation, Early/Lower Pleistocene (2.6 - 0.8 Ma)

• dated to 1.5 +/- 0.2 million years ago using the fission track method (Otsuka 2002)

Environment/lithology: marine; gray mudstone

• dark gray mudstone

Size class: macrofossils

Primary reference: T. Ikeda, H. Otsuka, and H. Ota. 2016. Early Pleistocene Fossil Snakes (Reptilia: Squamata) from Okinawajima Island in the Ryukyu Archipelago, Southwestern Japan. Herpetological Monographs 30:143-156 [M. Uhen/M. Uhen]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 210495: authorized by Mark Uhen, entered by Mark Uhen on 02.06.2020

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Reptilia
 Squamata - Viperidae
Viperidae indet.
Viperidae indet. Oppel 1811 viper
 Squamata - Elapidae
Sinomicrurus cf. japonicus
Sinomicrurus cf. japonicus Günther 1868 snake
 Squamata - Crotalidae
Protobothrops sp.
Protobothrops sp. Hoge and Romano-Hoge 1983 pit viper
 Squamata - Colubridae
Colubridae indet., Dinodon sp., Cyclophiops sp.
Colubridae indet. Oppel 1811 colubrid snake
Dinodon sp. Duméril et al. 1854 colubrid snake
Dinodon spp.
Cyclophiops sp. Boulenger 1888 colubrid snake