| 词条 | Marmorerpeton |
| 释义 |
| name = Marmorerpeton | taxon = Marmorerpeton | fossil_range = Middle Jurassic, {{fossil range|167.7|164.7}} | image = | authority = Evans et al. 1988 | type_species = {{extinct}}Marmorerpeton freemani | type_species_authority = Evans et al. 1988 | subdivision_ranks = Species |subdivision =
}}Marmorerpeton is an extinct genus of prehistoric stem-salamanders that lived in Europe during the Middle Jurassic.[1][2] They are among the earliest-known salamanders,[3] and are probably older than Karaurus.[4][5] The genus appears to have been neotenic, based on a few morphological characters [1] and on the presence of calcified cartilage in the medulla of its humerus (see thumbnail).[6] The size of its osteocytic lacunae suggests that it had a fairly large genome (C-value of about 36.7 pg, with a 95% confidence interval ranging from 30.2 to 44.2 pg), though not as large as that of obligatorily neotenic extant urodeles. This suggests that it may have been facultatively neotenic.[7] See also{{Portal|Paleontology}}
References1. ^1 >{{cite journal | last1 = Evans | first1 = S. E. | last2 = Milner | first2 = A. R. | last3 = Mussett | first3 = F. | year = 1988 | title = The earliest known salamanders (Amphibia, Caudata): a record from the Middle Jurassic of England | journal = Geobios | volume = 21 | issue = 5| pages = 539–552 | doi=10.1016/s0016-6995(88)80069-x | url=http://www.sciencedirect.com/science/article/pii/S001669958880069X}} {{Taxonbar|from=Q6772172}}{{paleo-amphibian-stub}}2. ^{{cite web|url=http://paleodb.org/cgi-bin/bridge.pl?action=checkTaxonInfo&taxon_no=156385&is_real_user=1|title=Marmorerpeton|publisher=The Paleobiology Database|accessdate=13 June 2010}} 3. ^{{cite journal | last1 = Marjanovic | first1 = D. | last2 = Laurin | first2 = M. | year = 2014 | title = An updated paleontological timetree of lissamphibians, with comments on the anatomy of Jurassic crown-group salamanders (Urodela) | journal = Historical Biology | volume = 26 | issue = 4 | pages = 535–550 | DOI = 10.1080/08912963.2013.797972}} 4. ^{{cite web|url=http://palaeo.gly.bris.ac.uk/Palaeofiles/Fossilgroups/Amphibia/fossilrecord.html|title=Fossil record|publisher=University of Bristol|accessdate=13 June 2010}} 5. ^{{cite book|last1=Fraser|first1=Nicholas C.|last2=Sues|first2=Hans-Dieter|title=In the shadow of the dinosaurs: early Mesozoic tetrapods|url=https://books.google.com/books?id=3Ta_uivXdrAC&source=gbs_navlinks_s|date=1997-08-28|publisher=Cambridge University Press|isbn=0-521-45899-4|page=16}} 6. ^{{cite journal | last1 = de Buffrénil | first1 = V. | last2 = Canoville | first2 = A. | last3 = Evans | first3 = S. E. | last4 = Laurin | first4 = M. | year = 2015 | title = Histological study of karaurids, the oldest known (stem) urodeles | journal = Historical Biology | volume = 27 | issue = 1 | pages = 109–114 | DOI = 10.1080/08912963.2013.869800}} 7. ^{{cite journal | last1 = Laurin | first1 = M. | last2 = Canoville | first2 = A. | last3 = Struble | first3 = M. | last4 = Organ | first4 = C. |last5 = de Buffrénil | first5 = V. | year = 2015 | title = Early genome size increase in urodeles | journal = Comptes Rendus Palevol | volume = 15| issue = | pages = 74–82| url = http://www.sciencedirect.com/science/article/pii/S1631068315000111 | doi=10.1016/j.crpv.2014.12.006}} 3 : Jurassic amphibians of Europe|Fossil taxa described in 1988|Prehistoric amphibian genera |
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