Euskelia

Extinct clade of amphibians

Euskelia

Temporal range: Pennsylvanian \- Early Triassic, 307.1–249 Ma

PreꞒ

Mounted skeleton of Eryops, American Museum of Natural History
Scientific classification
Domain:  | Eukaryota
Kingdom:  | Animalia
Phylum:  | Chordata
Order:  | †Temnospondyli
Suborder:  | †Euskelia
Yates and Warren, 2000
Superfamilies

* †Dissorophoidea?
* †Eryopoidea

Synonyms

* Eryopia

Euskelia is a proposed clade of extinct temnospondyl amphibians. The naming derives from the ancient Greek eu, meaning "true", and skelos, meaning "limb", in reference to well-ossified limb bones with crests to which muscles were attached.[1] Members of this group have the most ossified skeleton of all temnospondyls.[2]

Euskelia is a stem-based taxon including all temnospondyls more closely related to Eryops (an eryopoid) than to Parotosuchus (a stereospondyl). The clade was named by Yates & Warren (2000), whose phylogenetic analysis argued that eryopoids were more closely related to dissorophoids than to stereospondyls. Euskelia was intended to encompass the terrestrial eryopoid+dissorophoid clade, opposite to the clade Limnarchia, which included aquatic groups such as dvinosaurs and stereospondylomorphs.[1]

Other studies propose a different structure of the temnospondyl family tree. For example, Schoch (2013) considered eryopoids to be closer to stereospondylomorphs than to dissorophoids. That study offered the name Eryopiformes for the eryopoid+stereospondylomorph clade, excluding dissorophoids.[3]

## References

[edit]

1. ^ a b Yates, A. M.; Warren, A. A. (2000). "The phylogeny of the 'higher' temnospondyls (Vertebrata: Choanata) and its implications for the monophyly and origins of the Stereospondyli". Zoological Journal of the Linnean Society. 128: 77–121. doi:10.1111/j.1096-3642.2000.tb00650.x.
2. ^ Immaturity vs paedomorphism: a rhinesuchid stereospondyl postcranium from the Upper Permian of South Africa
3. ^ Schoch, R. R. (2013). "The evolution of major temnospondyl clades: An inclusive phylogenetic analysis". Journal of Systematic Palaeontology. 11: 673–705. doi:10.1080/14772019.2012.699006.

* v
* t
* e

Temnospondyli

* Kingdom: Animalia
* Phylum: Chordata
* Clade: Osteichthyes
* Clade: Sarcopterygii
* Clade: Tetrapodomorpha
* Clade: Stegocephali

| Tetrapodomorpha|

*     * see Tetrapodomorpha

Temnospondyli|

*     * see below↓

Temnospondyli

Temnospondyli

* Caerorhachis?
* Capetus
* Casineria?
* Iberospondylus
* Palatinerpeton
* Baphetoidea?
* Colosteidae?

Edopoidea|

* Edops

Cochleosauridae|

* Adamanterpeton
* Cochleosaurus
* Chenoprosopus
* Macrerpeton
* Nigerpeton?
* Procochleosaurus
* Saharastega?

Dendrerpetontidae|

* Balanerpeton
* Dendrerpeton

Dvinosauria|

* Acroplous
* Bermanerpeton
* Dvinosaurus
* Erpetosaurus
* Isodectes
* Kourerpeton
* Perryella?
* Timonya
* Trypanognathus

Trimerorhachidae|

* Eugyrinus?
* Lafonius
* Nannospondylus
* Neldasaurus
* Procuhy
* Trimerorhachis

Tupilakosauridae|

* Batrachosuchoides?
* Slaugenhopia
* Thabanchuia
* Tupilakosaurus

Zatracheidae|

* Acanthostomatops
* Chemnitzion
* Dasyceps
* Zatrachys

Dissorophoidea|

*     * see Dissorophoidea
* likely includes Lissamphibia

Eryopidae|

* Actinodon
* Chelydosaurus
* Clamorosaurus
* Eryops
* Onchiodon
* Osteophorus
* Stenokranio
* Syndyodosuchus?

Stereospondylomorpha|

* Cheliderpeton?
* Glanochthon
* Intasuchus
* Korkonterpeton
* Sclerocephalus
* Syndyodosuchus?

Archegosauridae|

| Melosaurinae|

* Koinia
* Konzhukovia
* Melosaurus
* Tryphosuchus
* Uralosuchus

|

Platyoposaurinae|

* Archegosaurus
* Bageherpeton
* Bashkirosaurus
* Collidosuchus
* Kashmirosaurus
* Platyoposaurus
* Prionosuchus

Stereospondyli|

*     * see Stereospondyli

* See also: Batrachomorpha
* Eutemnospondyli
* Rhachitomi
* Euskelia
* Eryopiformes
* Eryopoidea
* Limnarchia
* Archegosauroidea
* Category

Taxon identifiers

Euskelia|

* Wikidata: Q3768850
* Wikispecies: Euskelia
* Paleobiology Database: 150272

This Temnospondyli-related article is a stub. You can help Wikipedia by expanding it.

|

* v
* t
* e

*[†]: Extinct
*[v]: View this template
*[t]: Discuss this template
*[e]: Edit this template