Eocaecilia: Difference between revisions

Eocaecilia; Temporal range: Early Jurassic, 199.6–175.6 Ma PreꞒ Ꞓ O S D C P T J K Pg N
	3D scan of the holotype skull
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Amphibia
Order:	Gymnophiona
Genus:	†Eocaecilia; Jenkins & Walsh, 1993
Species:	†E. micropodia
Binomial name
	†Eocaecilia micropodia; Jenkins & Walsh, 1993

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Eocaecilia is an extinct genus of gymnophionan amphibian from the early Jurassic Kayenta Formation of Arizona, United States. One species is described, Eocaecilia micropodia.

Eocaecilia shared some characteristics with salamanders and the now extinct microsaur amphibians. It was of small size, about 15 cm in length. Unlike modern caecilians, which are legless, Eocaecilia possessed small legs, and while modern caecilians have poorly developed eyes and spend a lot of time under ground, Eocaecilia's eyes were somewhat better developed. Although the precise ancestry of Eocaecilia is debated (and other caecilians by extension), it likely resided among the ancestral lepospondyl^[1]^[2]^[3] or temnospondyl^[4]^[5] amphibians of the Paleozoic and Mesozoic.

References

^ Jenkins, F.A. & Walsh, D.M. (1993) An Early Jurassic caecilian with limbs. Nature 365: 246-250.
^ Huttenlocker, A. K.; Pardo, J. D.; Small, B. J.; Anderson, J. S. (2013). "Cranial morphology of recumbirostrans (Lepospondyli) from the Permian of Kansas and Nebraska, and early morphological evolution inferred by micro-computed tomography". Journal of Vertebrate Paleontology 33 (3): 540. doi:10.1080/02724634.2013.728998
^ Anderson, J. S.; Reisz, R. R.; Scott, D.; Fröbisch, N. B.; Sumida, S. S. (2008). "A stem batrachian from the Early Permian of Texas and the origin of frogs and salamanders". Nature 453 (7194): 515–518. doi:10.1038/nature06865
^ Jenkins, F.A. et al. (2007) Anatomy of Eocaecilia micropodia, A Limbed Caecilian of the Early Jurassic. Bulletin of the Museum of Comparative Zoology 158(6):285-365.
^ Maddin H.C., Jenkins F.A. Jr. & Anderson J.S. (2012) The Braincase of Eocaecilia micropodia (Lissamphibia, Gymnophiona) and the Origin of Caecilians. PLoS ONE 7(12):e50743.

External links

Eocaecilia at Palaeos.com.

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

[1] Jenkins, F.A. & Walsh, D.M. (1993) An Early Jurassic caecilian with limbs. Nature 365: 246-250.

[2] Huttenlocker, A. K.; Pardo, J. D.; Small, B. J.; Anderson, J. S. (2013). "Cranial morphology of recumbirostrans (Lepospondyli) from the Permian of Kansas and Nebraska, and early morphological evolution inferred by micro-computed tomography". Journal of Vertebrate Paleontology 33 (3): 540. doi:10.1080/02724634.2013.728998

[3] Anderson, J. S.; Reisz, R. R.; Scott, D.; Fröbisch, N. B.; Sumida, S. S. (2008). "A stem batrachian from the Early Permian of Texas and the origin of frogs and salamanders". Nature 453 (7194): 515–518. doi:10.1038/nature06865

[4] Jenkins, F.A. et al. (2007) Anatomy of Eocaecilia micropodia, A Limbed Caecilian of the Early Jurassic. Bulletin of the Museum of Comparative Zoology 158(6):285-365.

[5] Maddin H.C., Jenkins F.A. Jr. & Anderson J.S. (2012) The Braincase of Eocaecilia micropodia (Lissamphibia, Gymnophiona) and the Origin of Caecilians. PLoS ONE 7(12):e50743.

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@@ Line 1: / Line 1: @@
+{{Short description|Extinct genus of amphibians}}
-{{Taxobox
+{{speciesbox
-|name = ''Eocaecilia''
-|fossil_range = [[Early Jurassic]]
+| fossil_range = [[Early Jurassic]], {{Fossil range|199.6|175.6}}
-|image = Eocaecilia_BW.jpg
+| image = Eocaecilia.png
+| image_caption = 3D scan of the holotype skull
-|image_width = 200px
+| genus = Eocaecilia
-|regnum = [[Animal]]ia
+| parent_authority = Jenkins & Walsh, 1993
-|phylum = [[Chordata]]
+| species = micropodia
-|classis = [[Amphibia]]
+| authority = Jenkins & Walsh, 1993
-|ordo = [[Gymnophiona]]
-|genus = '''''Eocaecilia'''''
-|species = '''''E. micropodia'''''
-|binomial = ''Eocaecilia micropodia''
 }}
-'''''Eocaecilia micropodia''''' is an extinct species of [[caecilian]] (limbless amphibian). It shared some characteristics with [[salamander]]s and the now extinct ''[[Microsauria]]''. Unlike modern caecilians, ''Eocaecilia'' possessed legs. And while modern caecilians have poorly developed [[eye]]s and spend a lot of time under ground, ''Eocaecilia'''s eyes were still well-developed, indicating it was not subterranean.
+'''''Eocaecilia''''' is an [[extinction|extinct]] [[genus]] of [[gymnophiona]]n [[amphibian]] from the early Jurassic [[Kayenta Formation]] of [[Arizona]], United States. One species is described, '''''Eocaecilia micropodia'''''.
+[[File:Eocaecilia BW.jpg|thumb|left|Life restoration]]
+''Eocaecilia'' shared some characteristics with [[salamander]]s and the now extinct [[Microsauria|microsaur amphibians]]. It was of small size, about 15&nbsp;cm in length. Unlike modern caecilians, which are legless, ''Eocaecilia'' possessed small legs, and while modern caecilians have poorly developed [[eye]]s and spend a lot of time under ground, ''Eocaecilia'''s eyes were somewhat better developed. Although the precise ancestry of ''Eocaecilia'' is debated (and other caecilians by extension), it likely resided among the ancestral [[lepospondyl]]<ref>Jenkins, F.A. & Walsh, D.M. (1993) An Early Jurassic caecilian with limbs. Nature 365: 246-250.</ref><ref>Huttenlocker, A. K.; Pardo, J. D.; Small, B. J.; Anderson, J. S. (2013). "Cranial morphology of recumbirostrans (Lepospondyli) from the Permian of Kansas and Nebraska, and early morphological evolution inferred by micro-computed tomography". Journal of Vertebrate Paleontology 33 (3): 540. {{doi|10.1080/02724634.2013.728998}}</ref><ref>Anderson, J. S.; Reisz, R. R.; Scott, D.; Fröbisch, N. B.; Sumida, S. S. (2008). "A stem batrachian from the [[Cisuralian|Early Permian]] of Texas and the origin of frogs and salamanders". Nature 453 (7194): 515–518. {{doi|10.1038/nature06865}}</ref> or [[temnospondyl]]<ref>Jenkins, F.A. ''et al.'' (2007) [http://www.bioone.org/doi/abs/10.3099/0027-4100(2007)158%5B285:AOEMAL%5D2.0.CO%3B2 Anatomy of ''Eocaecilia micropodia'', A Limbed Caecilian of the Early Jurassic]. ''Bulletin of the Museum of Comparative Zoology'' 158(6):285-365.</ref><ref>Maddin H.C., Jenkins F.A. Jr. & Anderson J.S. (2012) [http://www.plosone.org/article/info%3Adoi%2F10.1371%2Fjournal.pone.0050743 The Braincase of ''Eocaecilia micropodia'' (Lissamphibia, Gymnophiona) and the Origin of Caecilians]. ''PLoS ONE'' 7(12):e50743.</ref> amphibians of the Paleozoic and Mesozoic.
 ==References==
+{{Reflist}}
-*Jenkins, FA & DM Walsh (1993), An Early Jurassic caecilian with limbs. Nature 365: 246-250.
+{{Portal|Paleontology}}
-==External links==
-*[http://www.palaeos.com/Vertebrates/Units/Unit180/180.100.html#Eocaecilia ''Eocaecilia'' at Palaeos.com.]
+==External links==
-[[Category:Caecilians]]
+*[https://web.archive.org/web/20080428021517/http://www.palaeos.com/Vertebrates/Units/Unit180/180.100.html#Eocaecilia ''Eocaecilia'' at Palaeos.com.]
-[[Category:Prehistoric amphibians]]
+{{Lissamphibia}}
-[[Category:Triassic amphibians]]
+{{Taxonbar|from=Q140417}}
-[[Category:Jurassic amphibians]]
+[[Category:Gymnophiona]]
-{{paleo-stub}}
+[[Category:Early Jurassic amphibians]]
-{{caecilian-stub}}
+[[Category:Jurassic amphibians of North America]]
+[[Category:Early Jurassic animals of North America]]
+[[Category:Prehistoric amphibian genera]]
+[[Category:Jurassic Arizona]]
+[[Category:Kayenta Formation]]
+[[Category:Transitional fossils]]
+[[Category:Fossil taxa described in 1993]]
-{{portal|Paleontology}}
+{{Paleo-amphibian-stub}}
-[[es:Eocaecilia]]
-[[ja:エオカエキリア]]