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Silvanerpeton

From Wikipedia, the free encyclopedia
Extinct genus of amphibians

Silvanerpeton
Temporal range:Early CarboniferousBrigantian
Life restoration ofSilvanerpeton miripedes
Scientific classificationEdit this classification
Domain:Eukaryota
Kingdom:Animalia
Phylum:Chordata
Clade:Reptiliomorpha
Genus:Silvanerpeton
Clack,1994
Type species
Silvanerpeton miripedes
Clack, 1994

Silvanerpeton is an extinctgenus of earlyreptiliomorph found byStan Wood in theEast Kirkton Quarry ofWest Lothian,Scotland, in a sequence from the Brigantian substage of theViséan (Lower Carboniferous).[1] The find is important, as the quarry represents terrestrial deposits fromRomer's gap, a period poor in fossils where the higher groups "labyrinthodonts" evolved.

Thetype speciesSilvanerpeton miripedes was named byJennifer A. Clack in 1993/1994. The generic name is derived fromSilvanus, the Roman god of woods. The specific name means "wondrous feet" inLatin. Theholotype is specimenUMZC T1317, a skeleton with skull and skin impressions.[2]

Description

[edit]

In lifeSilvanerpeton was about 40 cm (1 ft) long. Somepaleontologists think it was semi-aquatic as an adult, others believe only young individuals ofSilvanerpeton were aquatic and the adults were fully terrestrial.

Classification

[edit]

Based on a remarkably well preservedhumerus and other traits, the animal is believed to have been a relatively advancedreptiliomorph, close to the origin ofamniotes.[3]

References

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  1. ^"East Kirkton, Bathgate"(PDF).Geological Conservation Review. pp. 1–12. Archived fromthe original(PDF) on January 30, 2018.
  2. ^Clack, J.A. 1994. "Silvanerpeton miripedes, a new anthracosauroid from the Viséan of East Kirkton, West Lothian, Scotland".Transactions of the Royal Society of Edinburgh: Earth Sciences84 (for 1993): 369–376
  3. ^Ruta, M. andClack, J.A (2006): A review ofSilvanerpeton miripedes, a stem amniote from the Lower Carboniferous of East Kirkton, West Lothian, Scotland.Transactions of the Royal Society of Edinburgh: Earth Sciences, no 97, pp 31-63doi:10.1017/S0263593300001395"Abstract".
Gnathostomata
Tetrapodomorpha
    • see below↓
Rhizodontida
Canowindridae
Megalichthyidae
Eotetrapodiformes
Tristichopteridae
Elpistostegalia
Stegocephali(Tetrapodasensu lato)
    • see below↓
Rhizodus sp.

Osteolepis macrolepidotusEusthenopteron foordi

Tiktaalik rosae
Devoniantaxa
Elginerpetontidae
Post-Devoniantaxa
Aistopoda
Oestocephalidae
Phlegethontioidea
Phlegethontiidae
Whatcheeriidae
Colosteidae
Adelospondyli
Adelogyrinidae
†"Nectridea"
Baphetoidea
Baphetidae
Embolomeri
Gephyrostegidae
Other "anthracosaurs"
Crown group
Tetrapoda
Temnospondyli(Batrachomorpha
Reptiliomorpha(Pan-Amniota)
Phlegethontia longissima

Acanthostega gunnariCrassigyrinus scoticusEucritta melanolimnetesArcheria crassidisca

Bruktererpeton fiebigi
Related topics
Paraphyletic /
Polyphyletic groups
Other topics
Tetrapodomorpha
Reptiliomorpha
    • see below↓
Chroniosuchia?
Bystrowianidae
Chroniosuchidae
Seymouriamorpha?
"Microsauria"?
Diadectomorpha?
Diadectidae
†"Protorothyrididae"
Araeoscelidia
Captorhinidae
Moradisaurinae
Amniota
(crown group)
Synapsida(Pan‑Mammalia)
Sauropsida(Pan‑Reptilia)
Silvanerpeton miripedes

Bystrowiana permiraSeymouria baylorensisWestlothiana lizziaeDiadectes sideropelicusHylonomus lyelliPetrolacosaurus kansensis

Labidosaurus hamatus
Silvanerpeton
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