Jeholotriton: Difference between revisions

Jeholotriton; Temporal range: Middle or Late Jurassic, 164 Ma PreꞒ Ꞓ O S D C P T J K Pg N ↓
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Order:	Urodela
Suborder:	Cryptobranchoidea
Genus:	†Jeholotriton; Wang, 2000
Type species
	†Jeholotriton paradoxus; Wang, 2000

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Latest revision as of 05:58, 8 March 2023

Jeholotriton is a genus of primitive salamander from the Daohugou Beds (possibly dating to the late Jurassic period) near Daohugou village of Inner Mongolia, China.

Wang Yuan from the Institute of Vertebrate Paleontology and Paleoanthropology of the Chinese Academy of Sciences first described the species in 2000.^[1] In 2005, he presented a full description in the Journal of Vertebrate Paleontology along with C. S. Rose from James Madison University, United States.^[2]

The genus name "Jehol-" refers to Jehol Biota, which flourished during the Early Cretaceous in northeastern China. The original naming paper (Wang, 2000) regarded the salamander a member of the biota, but recent studies reveals this fossil-bearing Daohugou Beds is lower, Middle/Late Jurassic in age. The specific name "paradoxus" refers to the strange skull morphology of the animal.

Classification[edit]

A phylogenetic analysis by Wang and S.E. Evans in 2006 found that Jeholotriton is a possible sister taxon to Pangerpeton, a short-bodied salamander from an adjacent locality in Lingyuan, Liaoning, strata comparable to the Daohugou Beds. These two taxa are close to the base of crown−group Urodela (modern salamanders), either just outside it or just within.^[3]

References[edit]

^ Wang Yuan (2000). "A new salamander (Amphibia: Caudata) from the Early Cretaceous Jehol Biota" (PDF). Vertebrata PalAsiatica (in Chinese and English). 38 (2): 100–103.
^ Wang Yuan; Rose, Christopher S. (2005). "Jeholotriton paradoxus (Amphibia: Caudata) from the Lower Cretaceous of southeastern Inner Mongolia, China". Journal of Vertebrate Paleontology. 25 (3): 523–532. doi:10.1671/0272-4634(2005)025[0523:jpacft]2.0.co;2.
^ Wang Yuan; Evans, Susan E. (2006). "A new short-bodied salamander from the Upper Jurassic/Lower Cretaceous of China" (PDF). Acta Palaeontologica Polonica. 51 (1): 127–130. Archived from the original (PDF) on 10 August 2017. Retrieved 28 June 2018.

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This article related to a Jurassic animal is a stub. You can help Wikipedia by expanding it.

[1] Wang Yuan (2000). "A new salamander (Amphibia: Caudata) from the Early Cretaceous Jehol Biota" (PDF). Vertebrata PalAsiatica (in Chinese and English). 38 (2): 100–103.

[2] Wang Yuan; Rose, Christopher S. (2005). "Jeholotriton paradoxus (Amphibia: Caudata) from the Lower Cretaceous of southeastern Inner Mongolia, China". Journal of Vertebrate Paleontology. 25 (3): 523–532. doi:10.1671/0272-4634(2005)025[0523:jpacft]2.0.co;2.

[3] Wang Yuan; Evans, Susan E. (2006). "A new short-bodied salamander from the Upper Jurassic/Lower Cretaceous of China" (PDF). Acta Palaeontologica Polonica. 51 (1): 127–130. Archived from the original (PDF) on 10 August 2017. Retrieved 28 June 2018.

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@@ Line 1: / Line 1: @@
+{{Short description|Extinct genus of amphibians}}
-{{Taxobox
+{{Italic title}}
-| name = '''''Jeholotriton'''''
+{{Use dmy dates|date=July 2022}}
-| fossil_range = [[? Late Jurassic]]
+{{Automatic taxobox
-| regnum = [[Animalia]]
+| name = ''Jeholotriton''
-| phylum = [[Chordata]]
-| classis = [[Amphibia]]
+| taxon = Jeholotriton
+| fossil_range = [[Middle Jurassic|Middle]] or [[Late Jurassic]], {{fossilrange|164|earliest=168|latest=160}}
-| subclassis = [[Lissamphibia]]
+| type_species = {{extinct}}'''''Jeholotriton paradoxus'''''
-| ordo = [[Caudata]]
+| type_species_authority = Wang, 2000
-| genus = '''''Jeholotriton'''''
-| genus_authority = Wang, 2000
+| authority = Wang, 2000
-| subdivision_ranks = [[Species]]
-| subdivision =
-'''''J. paradoxus''''' <small>Wang, 2000 ([[Type species|type]])</small>
 }}
+'''''Jeholotriton''''' is a [[genus]] of primitive [[salamander]] from the [[Daohugou Beds]] (possibly dating to the late [[Jurassic]] period) near Daohugou village of [[Inner Mongolia]], China.
+[[Wang Yuan (paleontologist)|Wang Yuan]] from the [[Institute of Vertebrate Paleontology and Paleoanthropology]] of the Chinese Academy of Sciences first described the species in [[2000 in paleontology|2000]].<ref>{{cite journal |author=Wang Yuan |year=2000 |title=A new salamander (Amphibia: Caudata) from the Early Cretaceous Jehol Biota |journal=Vertebrata PalAsiatica |volume=38 |issue=2 |pages=100–103 |language=Chinese, English |url=http://www.ivpp.cas.cn/cbw/gjzdwxb/xbwzxz/200901/P020100304347253010705.pdf}}</ref> In 2005, he presented a full description in the ''Journal of Vertebrate Paleontology'' along with C. S. Rose from James Madison University, United States.<ref>{{cite journal |author1=Wang Yuan |last2=Rose |first2=Christopher S. |year=2005 |title=''Jeholotriton paradoxus'' (Amphibia: Caudata) from the Lower Cretaceous of southeastern Inner Mongolia, China |journal=Journal of Vertebrate Paleontology |volume=25 |issue=3 |pages=523–532 |doi=10.1671/0272-4634(2005)025[0523:jpacft]2.0.co;2}}</ref>
-'''''Jeholotriton''''' is an extinct genus of [[amphibian]]. It's monotypic species is ''Jeholotriton paradoxus''.
+The genus name "Jehol-" refers to [[Jehol Biota]], which flourished during the Early Cretaceous in northeastern China. The original naming paper (Wang, 2000) regarded the salamander a member of the biota, but recent studies reveals this fossil-bearing [[Daohugou Beds]] is lower, Middle/Late Jurassic in age. The specific name "paradoxus" refers to the strange skull morphology of the animal.
-''Jeholotriton paradoxus'' is a neotenic, primitive salamander from the ?Late Jurassic Daohugou fossil bed near Daohugou village of Ningcheng County, Chifeng City, Nei Mongol (Inner Mongolia), China.
+==Classification==
-Etymology: The genus name "Jehol-" refers to Jehol Biota flourished during the Early Cretaceous in northeastern China. The original naming paper (Wang, 2000) regarded the salamander a member of the biota, but recent studies reveals this fossil-bearing [[Daohugou Beds]] is lower, may be Late Jurassic in age or even older.
+A [[phylogenetic]] analysis by Wang and S.E. Evans in 2006 found that ''Jeholotriton'' is a possible sister taxon to ''[[Pangerpeton]]'', a short-bodied salamander from an adjacent locality in [[Lingyuan]], [[Liaoning]], strata comparable to the Daohugou Beds. These two taxa are close to the base of crown−group [[Urodela]] (modern salamanders), either just outside it or just within.<ref>{{cite journal |author1=Wang Yuan |last2=Evans |first2=Susan E. |year=2006 |title=A new short-bodied salamander from the Upper Jurassic/Lower Cretaceous of China |journal=Acta Palaeontologica Polonica |volume=51 |issue=1 |pages=127–130 |url=http://www.ivpp.ac.cn/qt/papers/201108/P020110831474590741703.pdf |access-date=28 June 2018 |archive-date=10 August 2017 |archive-url=https://web.archive.org/web/20170810122726/http://www.ivpp.ac.cn/qt/papers/201108/P020110831474590741703.pdf |url-status=dead }}</ref>
+== See also ==
-Yuan Wang (2000)<ref>Wang, Y., 2000. A new salamander (Amphibia: Caudata) from the Early Cretaceous Jehol Biota, Vertebrata PalAsiatica, 38(2): 100~103. [in Chinese, with English abstract]</ref> from IVPP (Institute of Vertebrate Paleontology and Paleoanthropology) of the Chinese Academy of Sciences named this new taxon on ''Vertabrata PalAsiatica'' with a short English abstract. In 2005, he presented a full description on ''Journal of Vertebrate Paleontology'' with C. S. Rose from James Madison University, USA<ref>Wang, Y., Rose, C., 2005. ''Jeholotriton paradoxus'' (Amphibia: Caudata) from the Lower Cretaceous of southeastern Inner Mongolia, China. Journal of Vertebrate Paleontology, 25(3): 523~532.
+* [[Prehistoric amphibian]]
-</ref>.
+* [[List of prehistoric amphibians]]
+== References ==
-This Mesozoic amphibian is characterized by a combination
+{{Reflist}}
-of larval and adult features indicating neoteny or incomplete
-metamorphosis. Larval features include: external gills; toothbearing
-coronoid; larval-shaped pterygoid; short maxillary arcade
-with underdeveloped maxilla. Adult features include: extensive
-medial contact of nasals; posteriorly directed, dentigerous
-vomerine bar in the palate. Differing from other Mesozoic
-salamanders in the following combination of character states:
-–16 presacrals; vertebrae with short transverse processes; ribs
-unicapitate and proximally expanded; anterior process of pterygoid
-directed anteromedially towards vomer, rather than anterolaterally
-towards posterior end of maxilla; vomer with large tooth
-patch anteriorly and longitudinal dentigerous bar posteriorly;
-nasals large with no anterior notch; frontal with no anterolateral
-extension; alary process of premaxilla about two-fifths width of
-premaxilla; coronoid process of coronoid/prearticular uni-lobed; coracoid end of scapolocoracoid slightly expanded and round in shape; phalangeal formulae of 2-2-3-2 and (1/2)-2-3-3-2 for manus
-and pes, respectively.
+{{Taxonbar|from=Q6176484}}
-Phylogenetic analysis<ref>Wang, Y., Evans, S. E., 2006. A new short-bodied salamander from the Upper Jurassic/Lower Cretaceous of China. Acta Palaeontologica Polonica, 51(1):127~130.</ref> regarded ''Jeholotriton'' as a possible sister taxon to ''Pangerpeton'', a short-bodied salamander from adjacent locality in Lingyuan of Liaoning Province, strata comparable to the Daohugou Bed. These two taxa are close to the base of crown−group Urodela either just outside it or just within.
+[[Category:Jurassic salamanders]]
-==References==
+[[Category:Jurassic amphibians of Asia]]
-<references />
+[[Category:Fossil taxa described in 2000]]
-==See also==
-* [[Prehistoric amphibian]]
-* [[List of prehistoric amphibians]]
-{{portalpar|Paleontology}}
-[[Category: Prehistoric amphibians]]
 {{paleo-amphibian-stub}}
+{{jurassic-animal-stub}}

Latest revision as of 05:58, 8 March 2023

Classification[edit]

See also[edit]

References[edit]