Thalassochelydia: Difference between revisions

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{{Automatic taxobox
{{Automatic taxobox
|fossil_range=[[Late Jurassic]], {{fossilrange|Oxfordian|Tithonian|latest=Valanginian}}
| fossil_range = [[Late Jurassic]], {{fossilrange|Oxfordian|Tithonian|latest=Valanginian}}
|image=
| image =
|display_parents=2
| display_parents = 2
|taxon=Thalassochelydia
| taxon = Thalassochelydia
|authority=Anquetin ''et al.'', [[2017 in paleontology|2017]]<ref name="anquetin2017"/>
| authority = Anquetin ''et al.'', [[2017 in paleontology|2017]]<ref name="anquetin2017"/>
|subdivision_ranks=Subgroups
| subdivision_ranks = Subgroups
|subdivision_ref=<ref name="anquetin2017"/>
| subdivision_ref = <ref name="anquetin2017"/>
|subdivision=
| subdivision = *''[[Aplax]]''
*''[[Aplax]]''
*''[[Cyrtura]]''
*''[[Cyrtura]]''
*''[[Enaliochelys]]''
*''[[Enaliochelys]]''
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*[[Eurysternidae]]
*[[Eurysternidae]]
*[[Plesiochelyidae]]
*[[Plesiochelyidae]]
*[[Protostegidae]]
*[[Sandownidae]]
*[[Thalassemydidae]]
*[[Thalassemydidae]]
}}
}}
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|label8="[[Thalassemydidae]]"
|label8="[[Thalassemydidae]]"
|8=''[[Thalassemys]]'' }} }}
|8=''[[Thalassemys]]'' }} }}
A 2021 study also recovered [[Protostegidae]] and [[Sandownidae]] as members of Thalassochelydia. The clade also likely exists within or just outside [[Sea turtle|Chelonoidea]], which contains the extant [[Sea turtle|sea turtles]], although the exact affinities of the clade is still an open question.<ref name=":1">{{Cite journal|last=Joyce|first=Walter G.|last2=Anquetin|first2=Jérémy|last3=Cadena|first3=Edwin-Alberto|last4=Claude|first4=Julien|last5=Danilov|first5=Igor G.|last6=Evers|first6=Serjoscha W.|last7=Ferreira|first7=Gabriel S.|last8=Gentry|first8=Andrew D.|last9=Georgalis|first9=Georgios L.|last10=Lyson|first10=Tyler R.|last11=Pérez-García|first11=Adán|date=2021-02-09|title=A nomenclature for fossil and living turtles using phylogenetically defined clade names|url=https://doi.org/10.1186/s13358-020-00211-x|journal=Swiss Journal of Palaeontology|volume=140|issue=1|pages=5|doi=10.1186/s13358-020-00211-x|issn=1664-2384}}</ref>


==References==
==References==

Revision as of 06:06, 12 February 2021

Thalassochelydia
Temporal range: Late Jurassic, Oxfordian–Tithonian
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Pantestudines
Clade: Testudinata
Clade: Mesochelydia
Clade: Perichelydia
Clade: Thalassochelydia
Anquetin et al., 2017[1]
Subgroups[1]

Thalassochelydia is a clade of extinct turtles from the Late Jurassic and potentially Early Cretaceous of Europe. The group is defined as including Eurysternum, Plesiochelys and Thalassemys to the exclusion of Pelomedusa, Testudo and Protostega. While a clade uniting the families Eurysternidae, Plesiochelyidae and Thalassemydidae had been supported by phylogenetic evidence, a name was not given for the clade until 2017, when Jérémy Anquetin and colleagues coined Thalassochelydia. While inner relationships of the clade are so uncertain as to make the monophyly of the families questionable, the significant diversity of thalassochelydians makes using the potentially invalid terms useful to describe the different morphologies.[1] The monophyly of Thalassochelydia was further supported by a later analysis by Serjocha Evers and Roger Benson in 2019, where the group, represented by Solnhofia and Plesiochelyidae was sister taxon to Sandownidae within the clade Angolachelonia, which, unlike as found by Anquetin et al. earlier, was outside Cryptodira and Testudines.[2] The phylogeny below of Thalassochelydian inter-relationships follows the results of Anquetin and colleagues in 2017.[1]

Thalassochelydia

A 2021 study also recovered Protostegidae and Sandownidae as members of Thalassochelydia. The clade also likely exists within or just outside Chelonoidea, which contains the extant sea turtles, although the exact affinities of the clade is still an open question.[3]

References

  1. ^ a b c d Anquetin, J.; Püntener, C.; Joyce, W.G. (2017). "A Review of the Fossil Record of Turtles of the Clade Thalassochelydia" (PDF). Bulletin of the Peabody Museum of Natural History. 58 (2): 317–369. doi:10.3374/014.058.0205. S2CID 31091127.
  2. ^ Evers, S.W.; Benson, R.B.J. (2018). "A new phylogenetic hypothesis of turtles with implications for the timing and number of evolutionary transitions to marine lifestyles in the group". Palaeontology. 62 (2): 93–134. doi:10.1111/pala.12384.
  3. ^ Joyce, Walter G.; Anquetin, Jérémy; Cadena, Edwin-Alberto; Claude, Julien; Danilov, Igor G.; Evers, Serjoscha W.; Ferreira, Gabriel S.; Gentry, Andrew D.; Georgalis, Georgios L.; Lyson, Tyler R.; Pérez-García, Adán (2021-02-09). "A nomenclature for fossil and living turtles using phylogenetically defined clade names". Swiss Journal of Palaeontology. 140 (1): 5. doi:10.1186/s13358-020-00211-x. ISSN 1664-2384.{{cite journal}}: CS1 maint: unflagged free DOI (link)