Misplaced Pages

Aitym Formation: Difference between revisions

Article snapshot taken from Wikipedia with creative commons attribution-sharealike license. Give it a read and then ask your questions in the chat. We can research this topic together.
Browse history interactively← Previous editContent deleted Content addedVisualWikitext
Revision as of 14:53, 26 December 2024 editEntranced98 (talk | contribs)Extended confirmed users, Pending changes reviewers, Rollbackers173,284 edits Adding short description: "Geological formation in Uzbekistan"Tag: Shortdesc helper← Previous edit Latest revision as of 19:59, 4 January 2025 edit undoCitation bot (talk | contribs)Bots5,435,857 edits Add: bibcode, authors 1-1. Removed parameters. Some additions/deletions were parameter name changes. | Use this bot. Report bugs. | Suggested by Abductive | Category:Incomplete lists from December 2024 | #UCB_Category 25/215 
(11 intermediate revisions by 5 users not shown)
Line 1: Line 1:
{{Short description|Geological formation in Uzbekistan}} {{Short description|Geological formation in Uzbekistan}}
{{Multiple issues|
{{refimprove|date=December 2024}} {{refimprove|date=December 2024}}
{{copy edit|date=December 2024}} {{Incomplete list|date=December 2024|science}}
}}
{{Infobox rockunit {{Infobox rockunit
| name = Aitym formation | name = Aitym Formation
| period = Cretaceous | period = Cretaceous
| age = ?] <br />~{{Fossilrange|86|83}} | age = ?] <br />~{{Fossilrange|86|83}}
Line 18: Line 16:
| underlies = | underlies =
| overlies =] | overlies =]
| thickness = up to <!-- {{Convert||ft|m|-1}} --> | thickness = up to <!-- ] -->
| area = | area = ]
| map = | map = {{Location map+ | Uzbekistan
| relief = 1
| map_caption =
| width = 250
| float = center
| places =
{{Location map~ | Uzbekistan
| lat_deg = 42.07
| lon_deg = 62.39
| mark = Lightgreen pog.svg
| marksize = 10}}
| map_caption = Location of the Aitym Formation
<!----Location----> <!----Location---->
| location = | location = ]
| coordinates = <!-- {{Coord||N||W|display=inline}} --> | coordinates = <!-- {{Coord|42.07|N|62.39|W|display=inline}} -->
| region =] | region ={{Flag|Uzbekistan}}
| country = | country = Uzbekistan
| extent = <!-- {{Convert||mi|km}}--> | extent = <!-- {{Convert||mi|km}}-->
<!--Type section---> <!--Type section--->
Line 33: Line 40:
| year_ts = <!--Year of definition--> | year_ts = <!--Year of definition-->
| location_ts = <!--Place,mountain,...--> | location_ts = <!--Place,mountain,...-->
| coordinates_ts = <!-- {{Coord||N||W|display=inline}} --><!--Geographic coordinates--> | coordinates_ts = <!-- {{Coord|42.07|N|63.29|W|display=inline}} --><!--Geographic coordinates-->
| paleocoordinates_ts = <!-- {{Coord||N||W|display=inline}} --><!--Paleocoordinates--> | paleocoordinates_ts = <!-- {{Coord||N||W|display=inline}} --><!--Paleocoordinates-->
| region_ts = <!--Region of type section--> | region_ts = <!--Region of type section-->
| country_ts = <!-- ]--> | country_ts = <!-- ]-->
| thickness_ts = <!--Thickness at type section--> | thickness_ts = <!--Thickness at type section-->
}} }} }}


The '''Aitym formation''' is a ] in ] which possibly dates to the ] stage of the ] period.<ref name=":0">{{Cite journal |last=Averianov |first=A |date=2003 |title=Mammals from the Upper Cretaceous Aitym Formation, Kyzylkum Desert, Uzbekistan |url=https://linkinghub.elsevier.com/retrieve/pii/S0195667103000375 |journal=Cretaceous Research |language=en |volume=24 |issue=2 |pages=171–191 |doi=10.1016/S0195-6671(03)00037-5}}</ref> The '''Aitym Formation''' is a ] in Uzbekistan which possibly dates to the ] stage of the ] period.<ref name=":0">{{Cite journal |last=Averianov |first=A |date=2003 |title=Mammals from the Upper Cretaceous Aitym Formation, Kyzylkum Desert, Uzbekistan |url=https://linkinghub.elsevier.com/retrieve/pii/S0195667103000375 |journal=Cretaceous Research |language=en |volume=24 |issue=2 |pages=171–191 |doi=10.1016/S0195-6671(03)00037-5|bibcode=2003CrRes..24..171A }}</ref>


The formation has not been precisely dated, however, certain ] suggest the formation as being deposited during the ] stage of the ] period. However, more study needs to be done in order to precisely date the formation.<ref name=":0" /> The formation has not been precisely dated. However, certain ] suggest the formation was deposited during the Santonian stage of the Late Cretaceous period.<ref name=":0" />


== Fossil Content == == Fossil content ==
A diverse fauna has been unearthed from the Aitym formation including ], ] and many ] ], including a diverse and abundant assemblage of ] ( cartilagenous fish) and a rarer assemblage of ] ( bony fish), as well as rather infrequent finds of ], and possible finds of ]. ] vertebrate remains are extremely rare in the formation. A few bones of ], ], ], possibly terrestrial ] remains, ] (including ]), and ] have been found in the Formation.<ref name=":0" /> A diverse fauna has been unearthed from the Aitym Formation including ], ] and many ] ]s, including an abundant assemblage of ] (cartilaginous fish), a rarer assemblage of ] (bony fish), and rather infrequent finds of ], and ]. ] vertebrate remains are extremely rare in the formation. A few bones of ], ], ], possibly terrestrial ] remains, ] (including ]), and ] have been found in the formation.<ref name=":0" />
{{Paleobiota-key-compact}}
{| class="wikitable" align="center" {| class="wikitable" align="center"
|- |-
Line 55: Line 63:
|''U. wardi''<ref name=":0" /> |''U. wardi''<ref name=":0" />
| |
|A ]n ]
|A ]
]
| |
|- |-
Line 62: Line 69:
|cf. ''S.'' sp.<ref name=":0" /> |cf. ''S.'' sp.<ref name=":0" />
| |
|A ] ] |A ] ]
| |
|- |-
|'']'' |style="background:#f3e9f3;"|'']''
|Cf. ''D.'' sp.<ref name=":0" /> |style="background:#fbdddb;"|cf. ''D.'' sp.<ref name=":0" />
|style="background:#fbdddb;" |
|
|A ] |style="background:#fbdddb;" |A ]; reclassified later as '']'', as the two genera have been synonymized
|style="background:#fbdddb;" |
|
|- |-
|'']'' |'']''
Line 90: Line 97:
|''Paranyctoides'' sp. cf. ''P. aralensis''<ref name=":0" /> |''Paranyctoides'' sp. cf. ''P. aralensis''<ref name=":0" />
| |
| rowspan="2" |A Possible ] | rowspan="2" |A possible ]
| |
|- |-
Line 117: Line 124:
| |
|} |}


{| class="wikitable" align="center" {| class="wikitable" align="center"
|- |-
Line 123: Line 132:
! Genus !! Species !! Location !! Notes!! Images ! Genus !! Species !! Location !! Notes!! Images
|- |-
| ] | '']''
| P.kyzylkumense<ref name=":0" /> | ''P. kyzylkumense''<ref name=":0" />


| |
|A ]] |A ] ]
| |
|} |}
Line 136: Line 145:
! Genus !! Species !! Location !! Notes!! Images ! Genus !! Species !! Location !! Notes!! Images
|- |-
|] |'']''
|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 |last1=Skutschas |first1=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|bibcode=2019CRPal..18..306S }}</ref>
| |
|A Genus of Large ] |A ]
| |
|} |}
Line 145: Line 154:
==References== ==References==
{{reflist}} {{reflist}}

]

Latest revision as of 19:59, 4 January 2025

Geological formation in Uzbekistan
This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.
Find sources: "Aitym Formation" – news · newspapers · books · scholar · JSTOR (December 2024) (Learn how and when to remove this message)
This science-related list is incomplete; you can help by adding missing items. (December 2024)
Aitym Formation
Stratigraphic range: ?Santonian
~86–83 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
TypeGeological formation
OverliesBissekty Formation
AreaKyzylkum Desert
Thicknessup to
Location
Aitym Formation is located in UzbekistanAitym FormationAitym 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 was deposited during the Santonian stage of the Late Cretaceous period.

Fossil content

A diverse fauna has been unearthed from the Aitym Formation including oysters, ammonites and many marine vertebrates, including an abundant assemblage of chondrichthyans (cartilaginous fish), a rarer assemblage of osteichthyans (bony fish), and rather infrequent finds of plesiosaurs, and 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
Taxon Reclassified taxon Taxon falsely reported as present Dubious taxon or junior synonym Ichnotaxon Ootaxon Morphotaxon
Notes
Uncertain or tentative taxa are in small text; crossed out taxa are discredited.
Mammals of the Aitym Formation
Genus Species Location Notes Images
Uzbekbaatar U. wardi A cimolodontan multituberculate
Shalbaatar cf. S. sp. A spalacotheriid symmetrodont
Deltatherus cf. D. sp. A deltatheroidan; reclassified later 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 placenticeratid ammonite
Amphibians of the Aitym Formation
Genus Species Location Notes Images
Eoscapherpeton E. asiaticum A giant salamander

References

  1. ^ Averianov, A (2003). "Mammals from the Upper Cretaceous Aitym Formation, Kyzylkum Desert, Uzbekistan". Cretaceous Research. 24 (2): 171–191. Bibcode:2003CrRes..24..171A. doi:10.1016/S0195-6671(03)00037-5.
  2. 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. Bibcode:2019CRPal..18..306S. doi:10.1016/j.crpv.2019.02.002.
Categories: