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| |style="background:#fbdddb;"|Cf. ''D.'' sp.<ref name=":0" /> | |style="background:#fbdddb;"|Cf. ''D.'' sp.<ref name=":0" /> | ||
| |style="background:#fbdddb;" | | |style="background:#fbdddb;" | | ||
| |style="background:#fbdddb;" |A ] Reclassified as ] as the two genera have been synonymized | |style="background:#fbdddb;" |A ] Reclassified as ] as the two genera have been synonymized | ||
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| ! Genus !! Species !! Location !! Notes!! Images | ! Genus !! Species !! Location !! Notes!! Images | ||
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| | ] | | '']'' | ||
| | P. kyzylkumense<ref name=":0" /> | | ''P. kyzylkumense''<ref name=":0" /> | ||
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| ! Genus !! Species !! Location !! Notes!! Images | ! Genus !! Species !! Location !! Notes!! Images | ||
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| |] | |'']'' | ||
| |E. asiaticum<ref>{{Cite journal |last=Skutschas |first=Pavel P. |last2=Saburov |first2=Pavel G. |last3=Boitsova |first3=Elizaveta A. |last4=Kolchanov |first4=Veniamin V. |date=2019 |title=Ontogenetic changes in long-bone histology of the cryptobranchid Eoscapherpeton asiaticum (Amphibia: Caudata) from the Late Cretaceous of Uzbekistan |url=http://cr-palevol.fr/18/30 |journal=Comptes Rendus Palevol |language=en |volume=18 |issue=3 |pages=306–316 |doi=10.1016/j.crpv.2019.02.002}}</ref> | |''E. asiaticum''<ref>{{Cite journal |last=Skutschas |first=Pavel P. |last2=Saburov |first2=Pavel G. |last3=Boitsova |first3=Elizaveta A. |last4=Kolchanov |first4=Veniamin V. |date=2019 |title=Ontogenetic changes in long-bone histology of the cryptobranchid Eoscapherpeton asiaticum (Amphibia: Caudata) from the Late Cretaceous of Uzbekistan |url=http://cr-palevol.fr/18/30 |journal=Comptes Rendus Palevol |language=en |volume=18 |issue=3 |pages=306–316 |doi=10.1016/j.crpv.2019.02.002}}</ref> | ||
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| |A Genus of Large ] | |A Genus of Large ] | ||
Latest revision as of 08:23, 28 December 2024
Geological formation in Uzbekistan | This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these messages)
|
| Aitym formation | |
|---|---|
| Stratigraphic range: ?Santonian ~86–83 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓ | |
| Type | Geological formation |
| Overlies | Bissekty Formation |
| Area | Kyzylkum Desert |
| Thickness | up to |
| Location | |
  Aitym Formation (Uzbekistan) | |
The Aitym formation is a Geological formation in Uzbekistan which possibly dates to the Santonian stage of the Late Cretaceous period.
The formation has not been precisely dated, however, certain fossils suggest the formation as being deposited during the Santonian stage of the Late Cretaceous period. However, more study needs to be done in order to precisely date the formation.
Fossil Content
A diverse fauna has been unearthed from the Aitym formation including Oysters, Ammonites and many marine vertebrates, including a diverse and abundant assemblage of Chondrichthyans ( cartilagenous fish) and a rarer assemblage of Osteichthyans ( bony fish), as well as rather infrequent finds of Plesiosaurs, and possible finds of Sea Turtles. Terrestrial vertebrate remains are extremely rare in the formation. A few bones of Salamanders, Lizards, Crocodiles, possibly terrestrial Turtle remains, Dinosaurs (including Birds), and Mammals have been found in the Formation.
Color key
|
Notes Uncertain or tentative taxa are in small text; |
| Mammals of the Aitym Formation | ||||
|---|---|---|---|---|
| Genus | Species | Location | Notes | Images |
| Uzbekbaatar | U. wardi | A cimolodontan | ||
| Shalbaatar | cf. S. sp. | A spalacotheriid symmetrodont | ||
| Deltatherus | Cf. D. sp. | A deltatheroidan Reclassified as Sulestes as the two genera have been synonymized | ||
| Daulestes | aff. D. sp | A asioryctithere | ||
| Kulbeckia | Kulbeckia sp. cf. K. kulbecke | A possible zalambdalestid | ||
| aff. Kulbeckia sp. | ||||
| Paranyctoides | Paranyctoides sp. cf. P. aralensis | A Possible lipotyphlan | ||
| Paranyctoides sp. | ||||
| Eoungulatum | E. sp. cf. E. kudukensis | Zhelestid ungulatomorphs | ||
| Parazhelestes | P. sp. cf. P. robustus | |||
| P. sp. aff. P. minor | ||||
| Aspanlestes | cf. A. sp. | |||
| Molluscs of the Aitym Formation | ||||
|---|---|---|---|---|
| Genus | Species | Location | Notes | Images |
| Placenticeras | P. kyzylkumense | A PlacenticeratiAmmonite | ||
| Amphibians of the Aitym Formation | ||||
|---|---|---|---|---|
| Genus | Species | Location | Notes | Images |
| Eoscapherpeton | E. asiaticum | A Genus of Large Giant Salamander | ||
References
- ^ Averianov, A (2003). "Mammals from the Upper Cretaceous Aitym Formation, Kyzylkum Desert, Uzbekistan". Cretaceous Research. 24 (2): 171–191. doi:10.1016/S0195-6671(03)00037-5.
- Skutschas, Pavel P.; Saburov, Pavel G.; Boitsova, Elizaveta A.; Kolchanov, Veniamin V. (2019). "Ontogenetic changes in long-bone histology of the cryptobranchid Eoscapherpeton asiaticum (Amphibia: Caudata) from the Late Cretaceous of Uzbekistan". Comptes Rendus Palevol. 18 (3): 306–316. doi:10.1016/j.crpv.2019.02.002.