Gaodian, 1 km east of Changxindian (Eocene of China)

Where: Beijing, China (39.8° N, 116.2° E: paleocoordinates 41.0° N, 109.9° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Changxindian Formation, Middle Eocene (47.8 - 37.7 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; conglomerate and red claystone

• conglomerates and red clays

Size classes: macrofossils, mesofossils

Collected in 1976

Primary reference: R.-J. Zhai. 1977. Supplementary Remarks on the Age of Changxiandian Formation. Vertebrata PalAsiatica 15(3):173-176 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 174745: authorized by Philip Mannion, entered by Philip Mannion on 26.11.2015

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Theriamorpha -
Eutheria indet.1, cf. Miacis sp.1, cf. Miacis sp.1
Eutheria indet.1 Huxley 1880 eutherian
Identified as ?Tupaiodon sp. by Chow (1953)
cf. Miacis sp.1 Cope 1872 placental
IVPP V5244
cf. Miacis sp.1 Cope 1872 placental
IVPP V5245
 Artiodactyla - Anthracotheriidae
Anthracotheriidae indet.1
Anthracotheriidae indet.1 Leidy 1869 anthracothere
Identified as ? Eudinoceras sp. by Young (1934)
 Perissodactyla - Paraceratheriidae
Paraceratheriidae indet.2
Paraceratheriidae indet.2 Osborn 1923 odd-toed ungulate
IVPP V5241
 Lagomorpha - Leporidae
Hypsimylus beijingensis n. gen. n. sp.
Hypsimylus beijingensis n. gen. n. sp. Zhai 1977 rabbit
IVPP V5242-5243 - holotype
 Rodentia - Ischyromyidae
Eosischyromys youngi n. gen. n. sp.3
Eosischyromys youngi n. gen. n. sp.3 Wang et al. 1998 rodent
IVPP V11376
1Lucas 1996; 2Wang et al. 2018; 3Wang et al. 1998