The Aral Formation is a geologic formation in Kazakhstan. It preserves fossils dating back to the Neogene period.[1] Much of its fossils consist of Glires and fish, though cetaceans and cryptobranchid salamanders are also known.
| Aral Formation | |
|---|---|
| Stratigraphic range: Oligocene – Miocene | |
| Type | Formation |
| Location | |
| Coordinates | 50.3° N, 57.2° E W[1] |
| Region | Aktyubinsk |
| Country | Kazakhstan |
Paleobiota
The Aral Formation has yielded a rich variety of extinct mammals. Many of its mammal fauna consists of the clade Glires with rodents being particularly numerous.[1]
Bivalves
| Genus | Species | Notes | Images |
|---|---|---|---|
| Corbula[1] | C. helmerseni | A bivalve |  |
Chondrichthyes
| Genus | Species | Notes | Images |
|---|---|---|---|
| Odontaspis[1] | Species indeterminate | A sand tiger shark. |
Osteichthyes
| Genus | Species | Notes | Images |
|---|---|---|---|
| Acipenser[1] | Species indeterminate | A sturgeon. | |
| Cyprinidae indet.[1] | Genus and species indeterminate | A carp. | |
| Esox[1] | E. aralensis | A pike. | |
| Percidae indet.[1] | Gensu and species indeterminate | A perch. |
Urodela
| Genus | Species | Notes | Images |
|---|---|---|---|
| Cryptobranchidae indet.[1] | Genus and species indeterminate. | A giant salamander. |
Mammals
Rodents
| Genus | Species | Notes | Images |
|---|---|---|---|
| Aralocricetodon[1] | A. schokensis | A cricetid. | |
| Asianeomys[1] | A. bolligeri. | An eomyid. | |
| Eumyarion[1][2] | E. tremulus | A mouse. | |
| Eucricetodon[1][2] | E. occasionalis | A mouse. | |
| Plesiosminthus[1] | P. tereskentensis | A jumping mouse. | |
| Propalaeocastor[1] | P. kumbulakensis | A castorid. |
Lagomorpha
| Genus | Species | Notes | Images |
|---|---|---|---|
| Desmatolagus | D. gobiensis, D. simplex, D. periaralicus. | A rabbit. |
Eulipotyphla
| Genus | Species | Notes | Images |
|---|---|---|---|
| Amphechinus | A. minimus | A hedgehog. | |
| Desmaninae indet. | Indeterminate genus and species. | A desman. | |
| Gobisorex | G. kingae. | A shrew. | |
| Talpidae indet. | Indeterminate genus and species. | A mole. |
Cetacea
| Genus | Species | Notes | Images |
|---|---|---|---|
| Delphinidae indet. | Indeterminate genus and species. | A dolphin. |
References
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