Beregovaja, Chikoi River, Western Transbaikalia (Pliocene of Russian Federation)

Also known as (part of the) Chikoy Faunal Complex

Where: Western Transbaikalia, Russian Federation (51.0° N, 106.7° E: paleocoordinates 51.2° N, 106.6° E)

• coordinate based on nearby landmark

When: Chikoi Formation, Pliocene (5.3 - 2.6 Ma)

• Middle/Late Pliocene.


• red-beds.

Size classes: macrofossils, mesofossils

Collection methods: 'reddish tints of sediments speak also of an arid and hot climate.'

Primary reference: M. A. Erbajeva. 1974. Villafranchian fauna of small mammals of the Western Transbaikal. Memoires du Bureau de Recherches Geologiques et Minieres 78(1):137-139 [A. Turner/H. O'Regan/H. O'Regan]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 40391: authorized by Alan Turner, entered by Hannah O'Regan on 23.06.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Pentalagini indet.
1 individual
Prolagomys sibiricus
4 individuals
 Rodentia - Zapodidae
Sicista pliocaenica birch mouse
6 individuals
 Rodentia - Cricetidae
Mimomys minor vole
12 individuals
Mimomys pseudintermedius vole
4 individuals
Mimomys cf. reidi vole
7 individuals
Villanyia eleonorae vole
350 individuals
Cricetinus cf. varians mouse
5 individuals
Cricetulus sp. Milne-Edwards 1867 mouse
47 individuals
 Rodentia - Muridae
Apodemus sibiricus Eurasian field mouse
3 individuals
Micromys cf. minutus harvest mouse
3 individuals
 Rodentia - Siphneidae
Prosiphneus ex gr. praetingi rodent
15 individuals
 Rodentia - Castoridae
Sinocastor sp. Young 1934 beaver
1 individual
 Lagomorpha - Leporidae
Leporidae indet. Fischer de Waldheim 1817 rabbit
1 individual
Pliolagus multiplicatus rabbit
4 individuals
Pliolagus transbaicalicus rabbit
3 individuals
 Lagomorpha - Ochotonidae
Ochotona gromovi pika
2 individuals
Ochotona intermedia pika
1 individual
Ochotona minor pika
46 individuals
Ochotonoides complicidens pika
5 individuals
 Theriamorpha - Soricidae
Petenyia hungarica Kormos 1934 red-toothed shrew
1 individual
Sorex mirabilis long-tailed shrew
1 individual
Sorex sp. Linnaeus 1758 long-tailed shrew
2 individuals
Beremendia fissidens Petényi 1864 shrew
1 individual