Khaichin Ula II [SMPE] (Eocene of Mongolia)

Also known as Haichin Ula; Khaychin-Ula 2; Khaychin Ula 2; PIN 3107; Kaïtchin-Ula II

Where: Ovorhangai, Mongolia (43.7° N, 99.9° E: paleocoordinates 44.5° N, 93.4° E)

• coordinate estimated from map

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; lithology not reported

Size class: mesofossils

Collected by SMPE in 1969–1973, 1978; reposited in the PIN

Collection methods: surface (in situ),

• Southern Gobi Team of the Joint Soviet– Mongolian Paleontological Expedition

Primary reference: I. A. Vislobokova. 2004. A new representative of the Family Raoellidae (Suiformes) from the middle Eocene of Khaichin-Ula2, Mongolia. Paleontological Journal 38(2):220-226 [M. Uhen/M. Uhen/M. Uhen]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 93596: authorized by Mark Uhen, entered by Mark Uhen on 25.01.2010, edited by Philip Mannion and Terri Cleary

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Didymoconida -
Ardynictis captor n. sp.7, Khaichinula lupula n. gen. n. sp.10, Erlikotherium edentatum n. gen. n. sp.10, "Kennatherium shirensis" = Kennatherium shirense7
Ardynictis captor n. sp.7 Lopatin 2003 eutherian
PIN, no. 3107/333 - type (fragment of the right maxilla with P4-M2)
Khaichinula lupula n. gen. n. sp.10 Lopatin 2006 eutherian
PIN 3107/326 - holotype
Erlikotherium edentatum n. gen. n. sp.10 Lopatin 2006 eutherian
PIN 3107/358 - holotype
"Kennatherium shirensis" = Kennatherium shirense7 Mellett and Szalay 1968 eutherian
PIN 3107 specimens
 Proteutheria - Palaeoryctidae
Nuryctes gobiensis n. sp.11 Lopatin and Averianov 2004 eutherian
PIN 3107/414 - type
 Cimolesta - Sarcodontidae
Metasarcodon reshetovi n. gen. n. sp.10
Metasarcodon reshetovi n. gen. n. sp.10 Lopatin and Kondrashov 2004 eutherian
PIN 3107/401 - holotype
 Artiodactyla - Entelodontidae
Proentelodon minutus n. gen. n. sp.14
Proentelodon minutus n. gen. n. sp.14 Vislobokova 2008 even-toed ungulate
PIN, no. 3107/470 - holotype
 Artiodactyla - Helohyidae
Gobiohyus pressidens13 Matthew and Granger 1925 even-toed ungulate
Gobiohyus reshetovi n. sp.13 Vislobokova 2004 even-toed ungulate
 Artiodactyla - Dichobunidae
Haqueina haichinensis Vislobokova 2004 even-toed ungulate
Chorlakkia valerii n. sp.13 Vislobokova 2004 even-toed ungulate
 Creodonta - Hyaenodontidae
"Pterodon rechetovi n. sp." = Neoparapterodon rechetovi4
"Pterodon rechetovi n. sp." = Neoparapterodon rechetovi4 Dashzeveg 1985 creodont
 Theriamorpha - Apternodontidae
Asiapternodus mackennai n. gen. n. sp.8
Asiapternodus mackennai n. gen. n. sp.8 Lopatin 2003 placental
PIN, no. 3107/400 - holotype (incomplete right maxilla containing P4-M3)
 Theriamorpha - Soricidae
Soricolestes soricavus n. gen. n. sp.6
Soricolestes soricavus n. gen. n. sp.6 Lopatin 2002 shrew
PIN, no. 3107/405 - holotype (fragmentary right mandible with P4–M3 and alveoli of C1–P3)
 Theriamorpha - Erinaceidae
Eogalericius butleri n. gen. n. sp.9
Eogalericius butleri n. gen. n. sp.9 Lopatin 2004 hedgehog
PIN, no. 3107/420 - holotype (fragmentary right maxilla with P4–M2)
 Lagomorpha -
Strenulagus solaris12 Lopatin and Averianov 2006 placental
PIN, no. 3107/450-452
 Rodentia -
"Boromys grandis n. gen. n. sp." = Euboromys grandis5, Petrokozlovia notos n. gen. n. sp.3
"Boromys grandis n. gen. n. sp." = Euboromys grandis5 Dashzeveg 1990 rodent
PSS 30-4 - holotype
Petrokozlovia notos n. gen. n. sp.3 Shevyreva 1972 rodent
Reptilia
 Squamata - Changjiangosauridae
Lavatisaurus elegans n. gen. n. sp.1, Acrodontopsis robustus n. gen. n. sp.1, Lentisaurus giganteus n. gen. n. sp.1, Graminisaurus interruptus n. gen. n. sp.1, Agamimus gracilis n. gen. n. sp.1, Khaichinsaurus reshetovi n. gen. n. sp.1
Lavatisaurus elegans n. gen. n. sp.1 Alifanov 2009 squamates
PIN, no. 3107/257 (holotype), dentary; PIN nos. 3107/252–256, 258–275, dentaries.
Acrodontopsis robustus n. gen. n. sp.1 Alifanov 2009 squamates
PIN, no. 3107/246 (holotype), dentary; PIN nos. 3107/235–245 and 247–251, dentary fragments.
Lentisaurus giganteus n. gen. n. sp.1 Alifanov 2009 squamates
PIN, no. 3107/226 (holotype), left maxilla
Graminisaurus interruptus n. gen. n. sp.1 Alifanov 2009 squamates
PIN, no. 3107/234 (holotype), right dentary without surangular process
Agamimus gracilis n. gen. n. sp.1 Alifanov 2009 squamates
PIN, no. 3107/280 (holotype), dentary; PIN 3107/276–279, maxillae; 3107/281–306, dentaries.
Khaichinsaurus reshetovi n. gen. n. sp.1 Alifanov 2009 squamates
PIN, no. 3107/227 (holotype), almost complete left maxilla and left dentary, plus fragment of the posterior part of the right surangular; PIN, nos. 3107/229, maxillary fragment without teeth; 3107/230–232, dentary fragments.
 Squamata - Arretosauridae
Dornosaurus gobiensis n. gen. n. sp.2, Khaichinguana eocaenica n. gen. n. sp.2
Dornosaurus gobiensis n. gen. n. sp.2 Alifanov 2012 squamates
PIN, no. 3107/321 (holotype), frontal with bro ken off anterior and posterolateral ends; PIN, nos. 3107/322, 323, fragments of maxillae; PIN, nos. 3107/307, 314–320, dentary fragments
Khaichinguana eocaenica n. gen. n. sp.2 Alifanov 2012 squamates
PIN, no. 3107/308 (holotype), almost complete frontal; PIN, nos. 3107/309–313, fragments of maxillae; PIN, nos. 3107/324–328, dentary fragments