Also known as Ergilin-Dzo; Promontory Bluff; Ergelyeen Dzo; Ardyn Obo
Where: Mongolia (43.4° N, 109.1° E: paleocoordinates 44.7° N, 104.4° E)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Ergilin Dzo Formation, Late/Upper Eocene (37.2 - 33.9 Ma)
• bed-level stratigraphic resolution
Environment/lithology: terrestrial; poorly lithified, argillaceous sandstone
Size class: macrofossils
Collected by AMNH Central Asiatic Expedition in 1922-1923; reposited in the AMNH
Primary reference: W. D. Matthew and W. Granger. 1923. The fauna of the Ardyn Obo formation. American Museum Novitates 98:1-5 [J. Alroy/J. Alroy]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 73781: authorized by John Alroy, entered by John Alroy on 28.06.2007, edited by Roger Benson, Philip Mannion and Terri Cleary
Creative Commons license: CC BY (attribution)
Taxonomic list
Mammalia | |
Ardynictis furunculus n. gen. n. sp.7
Ardynictis furunculus n. gen. n. sp.7 Matthew and Granger 1925 eutherian AMNH 20366 - type; paratype: AMNH 20365
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"Cadurcotherium ardynense n. sp." = Cadurcodon ardynensis8
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Ardynia praecox n. gen. n. sp.
Ardynia praecox n. gen. n. sp. Matthew and Granger 1923 odd-toed ungulate AMNH 19156 - type; referred material: AMNH 20358
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Colodon inceptus n. sp.6
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Paracolodon curtus n. gen. n. sp.6
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Schizotherium avitum n. sp. Matthew and Granger 1923 chalicothere AMNH 19157 - type; referred material: AMNH 20384
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Anthracotheriidae indet. Leidy 1869 anthracothere | |
Lophiomeryx angarae n. sp.6
Lophiomeryx angarae n. sp.6 Matthew and Granger 1925 ruminant AMNH 20376 - type; referred material: AMNH 20387
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"Lophiomeryx gobiae n. sp." = Praetragulus gobiae6
"Lophiomeryx gobiae n. sp." = Praetragulus gobiae6 Matthew and Granger 1925 ruminant AMNH 20381 - type; referred material: AMNH 20379-20380
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Eumeryx sp. Matthew and Granger 1924 deer | |
Miomeryx altaicus n. gen. n. sp.6
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Carnivora indet.1 Bowdich 1821 carnivoran "indeterminate... agrees with Cynodictis so far as it goes"
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Hyaenodon eminus n. sp.7
Hyaenodon eminus n. sp.7 Matthew and Granger 1925 creodont AMNH 20362 - type; paratype: AMNH 20363 and 20364
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Desmatolagus ardynense n. sp.2
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Reptilia | |
Trionychidae indet. Gray 1825 softshell turtle Two small incomplete plates represent a small trionychid
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Emydidae indet. Rafinesque 1815 turtle AMNH 6605 complete nuchal bone of a small emydid with the rugose surface suggestive of Trachemys
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"Testudo insolitus n. sp." = Ergilemys insolitus, "Testudo kaiseni n. sp." = Indotestudo kaiseni4, "Testudo demissa n. sp." = Geochelone demissa4
"Testudo insolitus n. sp." = Ergilemys insolitus Matthew and Granger 1923 turtle AMNH 6275, parts of carapace and plastron of several individuals (cotypes); including AMNH 6350 (left hyo- and hypoplastron), 6353 (anterior median portion of the carapace), 6351 (anterior half of an articulated carapace and plastron)
"Testudo kaiseni n. sp." = Indotestudo kaiseni4 Gilmore 1931 turtle AMNH 6352 (nearly complete carapace and plastron)
"Testudo demissa n. sp." = Geochelone demissa4 Gilmore 1931 turtle AMNH 6670, right xiphiplastral bone
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Lepidosauria indet.5 Haeckel 1866 lepidosaur "Sauria undetermined": (No number), single thoracic vertebra
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