Gashato (AMNH) (Paleocene of Mongolia)

Also known as Flaming Cliffs; Khashat; Khashaat; Hashiato

Where: Omngov, Mongolia (44.0° N, 104.0° E: paleocoordinates 44.2° N, 95.1° E)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Khashat Formation, Late/Upper Paleocene (58.7 - 55.8 Ma)

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size classes: macrofossils, mesofossils

Collected in 1923 and 1925; reposited in the AMNH

Primary reference: W. D. Matthew, W. Granger, and G. G. Simpson. 1928. Paleocene Multituberculates from Mongolia. American Museum Novitates 331:1-4 [P. Mannion/P. Mannion]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133403: authorized by Philip Mannion, entered by Philip Mannion on 12.09.2012, edited by Patricia Holroyd

Creative Commons license: CC BY (attribution)

Taxonomic list

Reptilia
 Testudines -
Testudines indet.2 Batsch 1788 turtle
"chelonian"
Mammalia
 Cimolesta - Sarcodontidae
Hyracolestes ermineus n. gen. n. sp.3, "Sarcodon pygmaeus n. gen. n. sp." = Sarcodon pygmaeus3, "Opisthopsalis vetus n. gen. n. sp." = Sarcodon pygmaeus4
Hyracolestes ermineus n. gen. n. sp.3 Matthew and Granger 1925 eutherian
AMNH 20425 - holotype (lower jaw)
"Sarcodon pygmaeus n. gen. n. sp." = Sarcodon pygmaeus3 Matthew and Granger 1925 eutherian
AMNH 20427 - holotype (upper molar)
"Opisthopsalis vetus n. gen. n. sp." = Sarcodon pygmaeus4 Matthew and Granger 1925 eutherian
AMNH 21701 - holotype (very badly crushed skull and jaws)
 Glires - Eurymylidae
"Eurymylus laticeps n. gen. n. sp." = Eurymylus laticeps3, "Baenomys ambiguus n. gen. n. sp." = Eurymylus laticeps3
"Eurymylus laticeps n. gen. n. sp." = Eurymylus laticeps3 Matthew and Granger 1925 placental
AMNH 20422 - holotype (upper jaw); referred material (Matthew et al. 1929): AMNH 21735 and 21738 (lower jaws) and 21737 (upper left jaw)
"Baenomys ambiguus n. gen. n. sp." = Eurymylus laticeps3 Matthew and Granger 1925 placental
AMNH 20424 - holotype (lower jaw fragment)
 Tribosphenida - Phenacolophidae
"Phenacolophus fallax n. gen. n. sp." = Phenacolophus fallax3, "Procoryphodon primaevus n. gen. n. sp." = Phenacolophus fallax1
"Phenacolophus fallax n. gen. n. sp." = Phenacolophus fallax3 Matthew and Granger 1925 placental
AMNH 20411 - holotype (lower and upper jaws); paratype: AMNH 20430 (symphyseal parts of three lower jaws); additional referred material
"Procoryphodon primaevus n. gen. n. sp." = Phenacolophus fallax1 Matthew and Granger 1925 placental
PIN 476-1 - holotype (fragment of left lower jaw with teeth); referred material: PIN 476-2 (piece of right lower jaw with teeth)
 Amblypoda - Prodinoceratidae
Prodinoceras martyr n. gen. n. sp.4
Prodinoceras martyr n. gen. n. sp.4 Matthew et al. 1929 uintathere
AMNH 21714 - holotype (crushed palate and lower jaws)
 Tribosphenida - Nyctitheriidae
Praolestes nanus n. gen. n. sp.4
Praolestes nanus n. gen. n. sp.4 Matthew et al. 1929 placental
AMNH 21718 - holotype (part of left lower jaw)
 Tribosphenida - Arctostylopidae
Palaeostylops sp.3 Matthew and Granger 1925 eutherian
AMNH 20422 (tooth)
Palaeostylops iturus n. gen. n. sp.3 Matthew and Granger 1925 eutherian
AMNH 20414 - holotype (lower jaw); paratype: AMNH 20415 (upper jaw)
Palaeostylops macrodon n. sp.4 Matthew et al. 1929 eutherian
AMNH 21725 - type (left lower jaw); paratypes: AMNH 20416 (right lower jaw), 22144 (left upper jaw) and 22142 (right upper jaw)
 Sarcobora -
Pseudictops lophiodon n. gen. n. sp.4
Pseudictops lophiodon n. gen. n. sp.4 Matthew et al. 1929 insectivoran
AMNH 21727 - holotype (part of left lower jaw); paratype: AMNH 21712 (part of right upper jaw)
 Multituberculata - Lambdopsalidae
Sphenopsalis nobilis n. gen. n. sp., Prionessus lucifer n. gen. n. sp.3
Sphenopsalis nobilis n. gen. n. sp. Matthew et al. 1928 multituberculate
AMNH 21736 - holotype (left m2)
Prionessus lucifer n. gen. n. sp.3 Matthew and Granger 1925 multituberculate
AMNH 20423 - holotype (lower jaw); referred material (Matthew et al. 1928): AMNH 21710 (lower jaw), 21717 (palate) and 21724 (teeth)