Chimney Butte, North Mesa (Eocene of Mongolia)

Also known as 8 miles north of Tukhum Lamasery; Wulanhuxiu; Buckshot Quarry

Where: Mongolia (44.1° N, 103.6° E: paleocoordinates 45.1° N, 97.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Ulan Shireh Formation, Middle Eocene (48.6 - 37.2 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected by Central Asiatic Expedition of the AMNH in 1928; reposited in the AMNH

Collection methods: surface (in situ),

Primary reference: C. W. Gilmore. 1931. Fossil turtles of Mongolia. Bulletin of the American Museum of Natural History 59:213-257 [M. Carrano/M. Carrano]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 127656: authorized by Roger Benson, entered by Roger Benson on 21.05.2012, edited by Philip Mannion, David Nicholson and Terri Cleary

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines - Trionychidae
Trionychidae indet. Gray 1825 softshell turtle
AMNH field number 598, 'parts of a large trionychid turtle'
 Testudines - Adocidae
cf. Adocus orientalis3 Gilmore 1931 turtle
 Testudines - Carettochelyidae
Anosteira mongoliensis n. sp. Gilmore 1931 turtle
AMNH 6697 (holotype articulated hyoplastron, hypoplastron and xiphiplastron, attached to portions of the carapace rim of both sides)
 Testudines - Pantestudinidae
Testudo ulanensis n. sp.1 Gilmore 1931 turtle
AMNH 6691 holotype (a portion of plastron and some costals and peripherals)
 Squamata - Agamidae
Tinosaurus asiaticus n. sp.5 Gilmore 1943 squamates
AMNH 6717 (holotype), median portion of right ramus with 4 posterior teeth
Mammalia
 Cimolesta - Pantolambdodontidae
Pantolambdodon inermis n. gen. n. sp.7 Granger and Gregory 1934 pantodont
AMNH 21558 - holotype; paratypes: AMNH 21748 and 22100
Pantolambdodon fortis n. sp.7 Granger and Gregory 1934 pantodont
AMNH 26127 - type
 Rodentia -
"Advenimus bohlini n. sp." = Saykanomys bohlini4
"Advenimus bohlini n. sp." = Saykanomys bohlini4 Dawson 1964 rodent
AMNH 26294 - type
 Rodentia - Echimyidae
Boromys marydawsonae n. sp.9 Tong 1997 spiny rat
AMNH 26291-26293
 Lagomorpha - Leporidae
Shamolagus grangeri n. gen. n. sp.2
Shamolagus grangeri n. gen. n. sp.2 Burke 1941 rabbit
AMNH 26289 - holotype
 Perissodactyla - Paraceratheriidae
Forstercooperia ulanshirehensis n. sp.10 Wang et al. 2018 odd-toed ungulate
AMNH 21608
 Didymoconida -
"Kennatherium shirensis n. gen. n. sp." = Kennatherium shirense8
"Kennatherium shirensis n. gen. n. sp." = Kennatherium shirense8 Mellett and Szalay 1968 eutherian
AMNH 26295 - holotype (posterior part of mandible)
 Oxyaenodonta - Oxyaenidae
Sarkastodon mongoliensis6 Granger 1938
AMNH 26302