Laogou (Miocene of China)

Where: Gansu, China (35.6° N, 103.4° E: paleocoordinates 34.5° N, 99.2° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Hujialiang Formation, MN 6 (13.7 - 12.8 Ma)

• "lower part of the Laogou section... Tungurian Stage of Middle Miocene" and equivalent to MN6

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; gray, yellow sandstone and red claystone

• "the fossiliferous sandstone bearing H. matritense underlies the sandstone bearing Platybelodong grangeri [position of other fossils not indicated]. Between the two fossiliferous beds, there is a bed of red clay... [H. matritense bed consists of] fluvial gray-yellowish sandstones with gravel"

Size class: macrofossils

Collection methods: "about 500 isolated teeth" of Platybelodon and Gomphotherium, which "are the dominant elements"; Hispanotherium matritense is represented by 20 teeth

•collector, date of collection, and museum repository not indicated

Primary reference: T. Deng. 2003. New material of Hispanotherium matritense (Rhinocerotidae, Perissodactyla) from Laogou of Hezheng County (Gansu, China), with special reference to the Chinese Middle Miocene elasmotheres. Geobios 36:141-150 [J. Alroy/J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 71105: authorized by John Alroy, entered by John Alroy on 18.04.2007, edited by Grace Varnham

Creative Commons license: CC BY (attribution)

Taxonomic list

• some chance that this is the same as the "Hezheng" collection with poor locality data (42257), but the faunal list doesn't match
Mammalia
 Proboscidea - Gomphotheriidae
Platybelodon grangeri Osborn 1929 gomphothere
Gomphotherium sp. Burmeister 1837 gomphothere
 Carnivora - Amphicyonidae
Amphicyon zhanxiangi Jiangzuo et al. 2018 bear-dog
GSM ZR00187 9–1
 Carnivora - Ursidae
"Hemicyon teilhardi" = Plithocyon teilhardi
"Hemicyon teilhardi" = Plithocyon teilhardi Colbert 1939 bear
 Carnivora - Percrocutidae
 Perissodactyla - Equidae
Anchitherium gobiensis anchitheriine horse
 Perissodactyla - Rhinocerotidae
Alicornops sp. Ginsburg and Guerin 1979 rhinoceros
Hispanotherium matritense de Prado 1864 rhinoceros
 Artiodactyla - Suidae
 Artiodactyla - Giraffidae
 Primates - Pliopithecidae
Pliopithecus sp. Gervais 1849 monkey