蛇頸龍

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日本一個蛇頸龍復原骨架

蛇頸龍學名Plesiosaurus)係一個絕咗種嘅大型海生爬行動物,屬鰭龍超目Sauropterygia),存在於侏羅紀早期(距今大約 1 億 9,960 萬年前至 1 億 7,560 萬年前),分佈於歐洲嘅海域同包括澳洲北美、以及亞洲等嘅太平洋地區[1]

外形[編輯]

蛇頸龍外形上嘅特徵如下[2]

  • 佢哋身長平均有成 3 至 5 米;
  • 個頭細,鼻哥窿近眼,啲牙又長又尖銳(明顯係食肉);
  • 佢哋有又長又幼嘅頸,條頸有相當嘅彈性,有古生物學研究估計,佢哋喺獵食魚群嗰陣,可能曉靠左右揈個頭嚟一嘢擔走多條魚;
  • 蛇頸龍嘅身體好似噉闊形,條尾(相對於條頸)比較短,而身體有兩對又大又長、好似噉形嘅肢體,能夠靠拍打四肢嚟游水(好似海獅等動物噉)。

睇埋[編輯]

[編輯]

  1. Brown, D. S. 1981. "The English Upper Jurassic Plesiosauroidea (Reptilia) and a review of the phylogeny and classification of the Plesiosauria". Bulletin of the British Museum (Natural History): Geology, 35, (4), 253-347.
  2. Plesiosaur.

參考[編輯]

  • Andrews, C. W. 1896. "On the structure of the plesiosaurian skull". Quarterly Journal of the Geological Society, London, 52, 246-253.
  • Brown, D. S. 1981. "The English Upper Jurassic Plesiosauroidea (Reptilia) and a review of the phylogeny and classification of the Plesiosauria". Bulletin of the British Museum (Natural History): Geology, 35, (4), 253-347.
  • Cruickshank, A. R. I.; Small, P. G.; and Taylor, M. A. 1991. "Dorsal nostrils and hydrodynamically driven underwater olfaction in plesiosaurs". Nature, 352, 62-64.
  • Lydekker, R. 1889. Catalogue of the fossil Reptilia and Amphibia in the British Museum (Natural History), Part II. Containing the Orders Ichthyopterygia and Sauropterygia. British Museum (Natural History)
  • Richard Owen, Fossil Reptili of the Liassic Formations, pt iii. (Monogr. Palaeont. Soc., 1865)
  • Persson, P. O. 1963. A revision of the classification of the Plesiosauria with a synopsis of the stratigraphical and geographical distribution of the group. Lunds Universitets Årsskrift, N. F. Avd. 2. 59, 1-59.
  • Storrs, G. W. 1991. "Anatomy and relationships of Corosaurus alcovensis (Diapsida: Sauropterygia) and the Triassic Alcova Limestone of Wyoming". Bulletin of the Peabody Museum of Natural History, 44, 1-151.
  • Storrs, G. W. and Taylor, M. A. 1996. "Cranial anatomy of a new plesiosaur genus from the lowermost Lias (Rhaetian/Hettangian) of Street, Somerset, England". Journal of Vertebrate Paleontology, 16, (3), 403-420.
  • Storrs, G. W. 1997. "Morphological and taxonomic clarification of the genus Plesiosaurus". 145-190. In Callaway, J. M and Nicholls, E. L. (eds.). Ancient Marine Reptiles. Academic press. London.
  • Taylor, M. A. and Cruickshank, A. R. I. 1993. Cranial anatomy and functional morphology of Pliosaurus brachyspondylus (Reptilia: Plesiosauria) from the Upper Jurassuc of Westbury, Wiltshire. Philosophical Transactions of the Royal Society of London, Series B, 341, 399-418.
  • Torrens, Hugh 1995. "Mary Anning (1799–1847) of Lyme; 'The Greatest Fossilist the World Ever Knew'". The British Journal for the History of Science, 25 (3): 257–284.

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