Ergilin Dzo [AMNH]: Late/Upper Eocene, Mongolia
collected by AMNH Central Asiatic Expedition 1922-1923
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Mammalia
- Didymoconida
|
||||||||||
|
Ardynictis furunculus n. gen., n. sp.
Matthew and Granger 1925
|
Matthew and Granger 1925 | |||||||||
| AMNH 20366 - type; paratype: AMNH 20365 | ||||||||||
|
Mammalia
- Rodentia
- Cylindrodontidae
|
||||||||||
|
Ardynomys olseni n. gen., n. sp.
Matthew and Granger 1925
|
Matthew and Granger 1925 | |||||||||
| AMNH 20368 - type | ||||||||||
|
Ardynomys chihi n. sp.
Matthew and Granger 1925
|
Matthew and Granger 1925 | |||||||||
| AMNH 20370 - type; paratype: AMNH 20371 | ||||||||||
|
Mammalia
- Lagomorpha
- Leporidae
|
||||||||||
|
Desmatolagus robustus
Matthew and Granger 1923
|
Matthew and Granger 1925 | |||||||||
| AMNH 20373 and 20374 | ||||||||||
|
= Desmatolagus ardynense n. sp.
Burke 1941
|
Burke 1941 | |||||||||
| AMNH 20373 - type; referred material: AMNH 20374 | ||||||||||
|
Mammalia
- Creodonta
- Hyaenodontidae
|
||||||||||
|
Hyaenodon eminus n. sp.
Matthew and Granger 1925
|
Matthew and Granger 1925 | |||||||||
| AMNH 20362 - type; paratype: AMNH 20363 and 20364 | ||||||||||
|
Mammalia
- Carnivora
|
||||||||||
|
? Cynodictis sp.
Bravard and Pomel 1850
|
||||||||||
| "indeterminate... agrees with Cynodictis so far as it goes" | ||||||||||
|
= Carnivora indet.
Bowdich 1821
|
Alroy 2007 | |||||||||
|
Mammalia
- Anthracotheriidae
|
||||||||||
|
Anthracotheriidae indet.
Leidy 1869
|
||||||||||
|
Mammalia
- Praetragulidae
|
||||||||||
|
Lophiomeryx gobiae n. sp.
Matthew and Granger 1925
|
Matthew and Granger 1925 | |||||||||
| recombined as Praetragulus gobiae | ||||||||||
| AMNH 20381 - type; referred material: AMNH 20379-20380 | ||||||||||
|
Mammalia
- Lophiomerycidae
|
||||||||||
|
Lophiomeryx angarae n. sp.
Matthew and Granger 1925
|
Matthew and Granger 1925 | |||||||||
| AMNH 20376 - type; referred material: AMNH 20387 | ||||||||||
|
Mammalia
- Cervidae
|
||||||||||
|
Eumeryx sp.
Matthew and Granger 1924
|
||||||||||
|
Mammalia
- Archaeomerycidae
|
||||||||||
|
Miomeryx altaicus n. gen., n. sp.
Matthew and Granger 1925
|
Matthew and Granger 1925 | |||||||||
| AMNH 20383 - type | ||||||||||
|
Mammalia
- Perissodactyla
- Tapiridae
|
||||||||||
|
Colodon inceptus n. sp.
Matthew and Granger 1925
|
Matthew and Granger 1925 | |||||||||
| AMNH 20357 - type | ||||||||||
|
Mammalia
- Perissodactyla
- Helaletidae
|
||||||||||
|
Paracolodon curtus n. gen., n. sp.
Matthew and Granger 1925
|
Matthew and Granger 1925 | |||||||||
| AMNH 20355 - type | ||||||||||
|
Mammalia
- Perissodactyla
- Amynodontidae
|
||||||||||
|
Cadurcotherium ardynense n. sp.
Osborn 1924
|
Osborn 1924 | 1 specimen | ||||||||
| recombined as Cadurcodon ardynensis | ||||||||||
|
Mammalia
- Perissodactyla
- Hyracodontidae
|
||||||||||
|
Ardynia praecox n. gen., n. sp.
Matthew and Granger 1923
|
||||||||||
| AMNH 19156 - type; referred material: AMNH 20358 | ||||||||||
|
Mammalia
- Perissodactyla
- Chalicotheriidae
|
||||||||||
|
Schizotherium avitum n. sp.
Matthew and Granger 1923
|
||||||||||
| AMNH 19157 - type; referred material: AMNH 20384 | ||||||||||
|
? Schizotherium sp.
Gervais 1876
|
Matthew and Granger 1925 | |||||||||
| AMNH 20385 | ||||||||||
|
= Schizotherium avitum
Matthew and Granger 1923
|
Coombs 1978 | |||||||||
|
Reptilia
- Testudines
- Emydidae
|
||||||||||
|
Emydidae indet.
Rafinesque 1815
|
||||||||||
| AMNH 6605 complete nuchal bone of a small emydid with the rugose surface suggestive of Trachemys | ||||||||||
|
Reptilia
- Testudines
- Testudinidae
|
||||||||||
|
Testudo insolitus n. sp.
Matthew and Granger 1923
|
2 specimens | |||||||||
| recombined as Ergilemys insolitus | ||||||||||
| 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 demissa n. sp.
Gilmore 1931
|
Gilmore 1931 | 1 specimen | ||||||||
| recombined as Geochelone demissa | ||||||||||
| AMNH 6670, right xiphiplastral bone | ||||||||||
|
Testudo kaiseni n. sp.
Gilmore 1931
|
Gilmore 1931 | |||||||||
| recombined as Indotestudo kaiseni | ||||||||||
| AMNH 6352 (nearly complete carapace and plastron) | ||||||||||
|
Reptilia
- Testudines
- Trionychidae
|
||||||||||
|
Trionychidae indet.
Gray 1825
|
||||||||||
| Two small incomplete plates represent a small trionychid | ||||||||||
|
Reptilia
|
||||||||||
|
Lepidosauria indet.
(Haeckel 1866)
|
Gilmore 1943 | 1 specimen | ||||||||
| "Sauria undetermined": (No number), single thoracic vertebra | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Mongolia |
| Coordinates: | 43.4° North, 109.1° East (view map) |
| Paleocoordinates: | 44.7° North, 104.4° East |
| Basis of coordinate: | estimated from map |
| Geographic resolution: | outcrop |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Priabonian | 10 m.y. bin: | Cenozoic 3 |
| Key time interval: | Late/Upper Eocene | ||
| Age range of interval: | 37.71000 - 33.90000 m.y. ago |
Stratigraphy
| Formation: | Ergilin Dzo |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | poorly lithified argillaceous sandstone |
| Includes fossils? | Y |
| Lithology description: "rather loose and slightly indurated sandstones and clayey sands of considerable variety of texture, quality, and color" | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | AMNH | ||
| Collectors: | AMNH Central Asiatic Expedition | Collection dates: | 1922-1923 |
Metadata
| Also known as: | Ergilin-Dzo; Promontory Bluff; Ergelyeen Dzo; Ardyn Obo | ||
| Database number: | 73781 | ||
| Authorizer: | J. Alroy, P. Barrett, P. Mannion, R. Benson | Enterer: | J. Alroy, P. Mannion, R. Benson, T. Cleary |
| Modifier: | P. Mannion | Research group: | vertebrate |
| Created: | 2007-06-28 18:33:49 | Last modified: | 2018-09-20 11:31:03 |
| Access level: | the public | Released: | 2007-06-28 18:33:49 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 24732. | W. D. Matthew and W. Granger. 1923. The fauna of the Ardyn Obo formation. American Museum Novitates 98:1-5 [J. Alroy/J. Alroy] |
Secondary references:
| 19636 | J. Alroy. 2007. Synonymies and reidentifications of North American fossil vertebrates and so forth. [J. Alroy/J. Alroy] | |
| 57113 | J. J. Burke. 1941. New fossil Leporidae from Mongolia. American Museum Novitates 1117:1-23 [P. Mannion/P. Mannion] | |
| 60071 | M. C. Coombs. 1978. Additional Schizotherium material from China , and a review of Schizotherium dentitions (Perissodactyla, Chalicotheriidae). American Museum Novitates 2647:1-18 [P. Mannion/P. Mannion] | |
| 34192 | ETE | C. W. Gilmore. 1931. Fossil turtles of Mongolia. Bulletin of the American Museum of Natural History 59:213-257 [M. Carrano/M. Carrano] |
| 12062 | ETE | C. W. Gilmore. 1943. Fossil lizards of Mongolia. Bulletin of the American Museum of Natural History 81(4):361-384 [M. Carrano/M. Carrano/R. Benson] |
| 57085 | W. D. Matthew and W. Granger. 1925. New ungulates from the Ardyn Obo Formation of Mongolia, with faunal list and remarks on correlation. American Museum Novitates 195:1-12 [P. Mannion/P. Mannion/P. Mannion] | |
| 57086 | W. D. Matthew and W. Granger. 1925. New Creodonts and Rodents from the Ardyn Obo Formation of Mongolia. American Museum Novitates 193:1-7 [P. Mannion/P. Mannion] | |
| 44020 | H. F. Osborn. 1924. Cadurcotherium ardynense, Oligocene, Mongolia. American Museum Novitates 147:1-4 [M. Carrano/M. Carrano] |