XJ 200114 (Miocene of China)

Also known as Ulungur River

Where: Xinjiang, China (46.3° N, 88.0° E: paleocoordinates 47.0° N, 87.1° E)

• coordinate stated in text

• small collection-level geographic resolution

When: Suosuoquan Formation, MN 3 (20.0 - 16.9 Ma)

• from "probably the middle or upper part of the formation" and "probably equivalent to the MN3 biozone"

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected in 2001; reposited in the IVPP

Collection methods: bulk, sieve,

• site was discovered in 2001; "about 3.5 tons of... matrix" was screenwashed

Primary reference: O. Maridet, W.-Y. Wu, J. Ye, S.-D. Bi, X.-J. Ni and J. Meng. 2011. Early Miocene cricetids (Rodentia) from the Junggar basin (Xinjiang, China) and their biochronological implications. Geobios 44(5):445-459 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 125716: authorized by John Alroy, entered by John Alroy on 18.03.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

• only cricetid rodents are described, but all other mammals are listed
unclassified
  -
Mammalia
 Carnivora - Mustelidae
Mustelidae indet. Fischer 1817 mustelid carnivore
 Theriamorpha - Soricidae
Soricidae indet. Fischer 1814 shrew
 Theriamorpha - Erinaceidae
Galericini indet. Pomel 1848 hedgehog
said to be a new genus
 Lagomorpha - Ochotonidae
Sinolagomys sp. Bohlin 1937 pika
 Rodentia - Dipodidae
Litodonomys sp. Wang and Qiu 2000 rodent
said to be new; spelt correctly but attributed to Loomis 1914, who actually named Litodontomys
Heterosminthus sp. Schaub 1930 rodent
said to be new
Heterosminthus mongoliensis Zazhigin and Lopatin 2000 rodent
 Rodentia - Cricetidae
Megacricetodon beijiangensis n. sp. Maridet et al. 2011 mouse
Cricetodon sp. Lartet 1851 mouse
Karydomys debruijni n. sp. Maridet et al. 2011 mouse
Eumyarion sp. Thaler 1966 mouse
 Rodentia - Sciuridae
Atlantoxerus sp. Major 1893 squirrel
said to be new