寬鎖龍屬:修订间差异

维基百科,自由的百科全书
删除的内容 添加的内容
Hoseumou留言 | 贡献
內容擴充
Hoseumou留言 | 贡献
无编辑摘要
第22行: 第22行:


==種系發生學==
==種系發生學==
寬鎖龍屬的[[模式種]]是''E. arcuatus'',原本是[[蛇頸龍]]的一種,是在1922年被建立為新屬。大部分的近年[[種系發生學]]研究,認為寬鎖龍是種相當原始的[[菱龍科]]動物<ref name=Smith07>{{Cite journal |author=Adam S. Smith |year=2007 |title=Anatomy and systematics of the Rhomaleosauridae (Sauropterygia, Plesiosauria) |journal=Ph.D. thesis, University College Dublin }}</ref><ref name=SmithDyke08>{{Cite journal |author=Adam S. Smith and Gareth J. Dyke |year=2008 |title=The skull of the giant predatory pliosaur ''Rhomaleosaurus cramptoni'': implications for plesiosaur phylogenetics |url=http://www.plesiosauria.com/pdf/smith&dyke_2008.pdf |journal=Naturwissenschaften |volume=95 |issue= |pages=975–980 |doi=10.1007/s00114-008-0402-z |pmid=18523747}}</ref><ref name=Marmornectes>{{cite journal |authors=Hilary F. Ketchum and Roger B. J. Benson |year=2011 |title=A new pliosaurid (Sauropterygia, Plesiosauria) from the Oxford Clay Formation (Middle Jurassic, Callovian) of England: evidence for a gracile, longirostrine grade of Early-Middle Jurassic pliosaurids |journal=Special Papers in Palaeontology |volume=86 |issue= |pages=109–129 |doi=10.1111/j.1475-4983.2011.01083.x }}</ref><ref name=Bensonetal12/>。
寬鎖龍屬的[[模式種]]是''E. arcuatus'',原本是[[蛇頸龍]]的一種,是在1922年被建立為新屬。大部分的近年[[種系發生學]]研究,認為寬鎖龍是種相當原始的[[菱龍科]]動物<ref name=Smith07>{{Cite journal |author=Adam S. Smith |year=2007 |title=Anatomy and systematics of the Rhomaleosauridae (Sauropterygia, Plesiosauria) |journal=Ph.D. thesis, University College Dublin }}</ref><ref name=SmithDyke08>{{Cite journal |author=Adam S. Smith and Gareth J. Dyke |year=2008 |title=The skull of the giant predatory pliosaur ''Rhomaleosaurus cramptoni'': implications for plesiosaur phylogenetics |url=http://www.plesiosauria.com/pdf/smith&dyke_2008.pdf |journal=Naturwissenschaften |volume=95 |issue= |pages=975–980 |doi=10.1007/s00114-008-0402-z |pmid=18523747}}</ref><ref name=Marmornectes>{{cite journal |authors=Hilary F. Ketchum and Roger B. J. Benson |year=2011 |title=A new pliosaurid (Sauropterygia, Plesiosauria) from the Oxford Clay Formation (Middle Jurassic, Callovian) of England: evidence for a gracile, longirostrine grade of Early-Middle Jurassic pliosaurids |journal=Special Papers in Palaeontology |volume=86 |issue= |pages=109–129 |doi=10.1111/j.1475-4983.2011.01083.x }}</ref><ref name=Bensonetal12>{{cite journal |authors=Roger B. J. Benson, Mark Evans and Patrick S. Druckenmiller |year=2012 |title=High Diversity, Low Disparity and Small Body Size in Plesiosaurs (Reptilia, Sauropterygia) from the Triassic–Jurassic Boundary |url=http://www.plosone.org/article/fetchObjectAttachment.action?uri=info%3Adoi%2F10.1371%2Fjournal.pone.0031838&representation=PDF |journal=PLoS ONE |volume=7 |issue=3 |pages=e31838 |doi=10.1371/journal.pone.0031838 |pmid=22438869 |pmc=3306369}}</ref>。


[[菱龍屬]]的一種(''Rhomaleosaurus megacephalus''),在2007年被改歸類於寬鎖龍屬<ref name=Smith07/>。但是,大部分研究認為這個種不屬於寬鎖龍、菱龍,應該成立新屬<ref name=SmithDyke08/><ref name=H.tomistomimus11>{{Cite journal |author=Roger B. J. Benson, Hilary F. Ketchum, Leslie F. Noè and Marcela Gómez-Pérez |year=2011 |title=New information on ''Hauffiosaurus'' (Reptilia, Plesiosauria) based on a new species from the Alum Shale Member (Lower Toarcian: Lower Jurassic) of Yorkshire, UK |journal=Palaeontology |volume=54 |issue=3 |pages=547–571 |doi=10.1111/j.1475-4983.2011.01044.x }}</ref><ref name=Marmornectes/>。
[[菱龍屬]]的一種(''Rhomaleosaurus megacephalus''),在2007年被改歸類於寬鎖龍屬<ref name=Smith07/>。但是,大部分研究認為這個種不屬於寬鎖龍、菱龍,應該成立新屬<ref name=SmithDyke08/><ref name=H.tomistomimus11>{{Cite journal |author=Roger B. J. Benson, Hilary F. Ketchum, Leslie F. Noè and Marcela Gómez-Pérez |year=2011 |title=New information on ''Hauffiosaurus'' (Reptilia, Plesiosauria) based on a new species from the Alum Shale Member (Lower Toarcian: Lower Jurassic) of Yorkshire, UK |journal=Palaeontology |volume=54 |issue=3 |pages=547–571 |doi=10.1111/j.1475-4983.2011.01044.x }}</ref><ref name=Marmornectes/>。

2013年1月23日 (三) 09:53的版本

寬鎖龍屬
化石時期: 侏羅紀早期
寬鎖龍的想像圖
寬鎖龍的想像圖
科學分類
界: 動物界 Animalia
門: 脊索動物門 Chordata
綱: 蜥形綱 Sauropsida
目: 蛇頸龍目 Plesiosauria
亞目: 上龍亞目 Pliosauroidea
科: 菱龍科 Rhomaleosauridae
屬: 寬鎖龍屬 Eurycleidus
Andrews, 1922
模式種
Eurycleidus arcuatus
(Owen, 1840)

寬鎖龍屬學名Eurycleidus)是種已滅絕海生爬行動物,是蛇頸龍目上龍亞目的一屬,生存於侏羅紀早期(可能是赫唐階)的英國

如同其他上龍類,寬鎖龍的身體寬廣、頭部大,嘴部佈滿銳利的針狀牙齒,牠們可能以魚類為食。寬鎖龍的胸帶骨頭相當大,顯示牠們的前肢可以使出相當大的力氣,適合快速游泳。


種系發生學

寬鎖龍屬的模式種E. arcuatus,原本是蛇頸龍的一種,是在1922年被建立為新屬。大部分的近年種系發生學研究,認為寬鎖龍是種相當原始的菱龍科動物[1][2][3][4]

菱龍屬的一種(Rhomaleosaurus megacephalus),在2007年被改歸類於寬鎖龍屬[1]。但是,大部分研究認為這個種不屬於寬鎖龍、菱龍,應該成立新屬[2][5][3]

參考資料

  1. ^ 1.0 1.1 Adam S. Smith. Anatomy and systematics of the Rhomaleosauridae (Sauropterygia, Plesiosauria). Ph.D. thesis, University College Dublin. 2007. 
  2. ^ 2.0 2.1 Adam S. Smith and Gareth J. Dyke. The skull of the giant predatory pliosaur Rhomaleosaurus cramptoni: implications for plesiosaur phylogenetics (PDF). Naturwissenschaften. 2008, 95: 975–980. PMID 18523747. doi:10.1007/s00114-008-0402-z. 
  3. ^ 3.0 3.1 Hilary F. Ketchum and Roger B. J. Benson. A new pliosaurid (Sauropterygia, Plesiosauria) from the Oxford Clay Formation (Middle Jurassic, Callovian) of England: evidence for a gracile, longirostrine grade of Early-Middle Jurassic pliosaurids. Special Papers in Palaeontology. 2011, 86: 109–129. doi:10.1111/j.1475-4983.2011.01083.x. 
  4. ^ Roger B. J. Benson, Mark Evans and Patrick S. Druckenmiller. High Diversity, Low Disparity and Small Body Size in Plesiosaurs (Reptilia, Sauropterygia) from the Triassic–Jurassic Boundary. PLoS ONE. 2012, 7 (3): e31838. PMC 3306369可免费查阅. PMID 22438869. doi:10.1371/journal.pone.0031838. 
  5. ^ Roger B. J. Benson, Hilary F. Ketchum, Leslie F. Noè and Marcela Gómez-Pérez. New information on Hauffiosaurus (Reptilia, Plesiosauria) based on a new species from the Alum Shale Member (Lower Toarcian: Lower Jurassic) of Yorkshire, UK. Palaeontology. 2011, 54 (3): 547–571. doi:10.1111/j.1475-4983.2011.01044.x.