Aral Formation

Last updated
Aral Formation
Stratigraphic range: OligoceneMiocene
Type Formation
Location
Coordinates 50.3° N, 57.2° E W [1]
Region Aktyubinsk
Country Kazakhstan

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.

Contents

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

GenusSpeciesNotesImages
Corbula [1] C. helmerseniA bivalve
Corbula modesta 002.jpg

Chondrichthyes

GenusSpeciesNotesImages
Odontaspis [1] Species indeterminateA sand tiger shark.

Osteichthyes

GenusSpeciesNotesImages
Acipenser [1] Species indeterminateA sturgeon.
Cyprinidae indet. [1] Genus and species indeterminateA carp.
Esox [1] E. aralensisA pike.
Percidae indet. [1] Gensu and species indeterminateA perch.

Urodela

GenusSpeciesNotesImages
Cryptobranchidae indet. [1] Genus and species indeterminate.A giant salamander.

Mammals

Rodents

GenusSpeciesNotesImages
Aralocricetodon [1] A. schokensisA cricetid.
Asianeomys [1] A. bolligeri.An eomyid.
Eumyarion [1] [2] E. tremulusA mouse.
Eucricetodon [1] [2] E. occasionalisA mouse.
Plesiosminthus [1] P. tereskentensisA jumping mouse.
Propalaeocastor [1] P. kumbulakensisA castorid.

Lagomorpha

GenusSpeciesNotesImages
Desmatolagus D. gobiensis, D. simplex, D. periaralicus.A rabbit.

Eulipotyphla

GenusSpeciesNotesImages
Amphechinus A. minimusA hedgehog.
Desmaninae indet.Indeterminate genus and species.A desman.
Gobisorex G. kingae.A shrew.
Talpidae indet.Indeterminate genus and species.A mole.

Cetacea

GenusSpeciesNotesImages
Delphinidae indet.Indeterminate genus and species.A dolphin.

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References

  1. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Fossilworks: Altynshokysu (bone bed I). Fossilworks.org. Retrieved 2021-04-07.
  2. 1 2 A. V. Lopatin. 1996. "The Stratigraphy and Small Mammals from the Aral Formation, the Altynshokysu Locality, Northern Aral Area." Stratigraphy and Geological Correlation. 4 (2): 65-79.