无齿潜鱼龙属

无齿潜鱼龙属; 化石时期：晚侏罗世，160–156 Ma PreЄ Є O S D C P T J K Pg N ▼
	泅泳无齿潜鱼龙正模颅骨
科学分类
界：	动物界 Animalia
门：	脊索动物门 Chordata
纲：	爬行綱 Reptilia
目：	†鱼龙目 Ichthyosauria
科：	†大眼鱼龙科 Ophthalmosauridae
亚科：	†大眼魚龍亞科 Ophthalmosaurinae
属：	†无齿潜鱼龙属 Baotanodon; Marsh, 1880
模式種
	†泅泳无齿潜鱼龙; Baptanodon natans; Marsh, 1880
異名
	泅泳大眼鱼龙 Ophthalmosaurus natans ; Marsh, 1879; 无齿鱼龙 Sauranodon ; Marsh, 1879（复名）; 微齿鱼龙 Microdontosaurus ; Gilmore, 1902;

无齿潜鱼龙（学名：Baptanodon）是种生存于晚侏罗世（1.6至1.56亿年前）的鱼龙目，得名自其缺少牙齿的猜测（该属牙齿现已发现）。^[1]无齿潜鱼龙拥有3.5米（11英尺）长的海豚状身体，双颚非常适合捕捉鱿鱼。^[2]该属化石主要在北美发现。模式种泅泳无齿潜鱼龙（Baptanodon natans）原于1879年归入无齿鱼龙（Sauranodon），^[3]但因此名已被占用而改名。

发现及物种

无齿潜鱼龙是1879年命名的“无齿鱼龙”的替换名，^[3]当时发现此名已被占用，故于1880年将属名改为“无齿潜鱼龙”。^[4]迈施与马茨凯（2000年）认为无齿潜鱼龙是大眼鱼龙的次异名。^[5]但2010年发表的一项研究显示无齿潜鱼龙和艾森尼大眼鱼龙（Ophthalmosaurus icenicus）并非属于同一个属。^[6]^[7]^[8]

分类

以下分支图遵循费舍等人2012年的研究。^[7]

鲔鱼龙类 Thunnosauria

鱼龙 Ichthyosaurus

狭翼鱼龙 Stenopterygius

乔开科鱼龙 Chacaicosaurus

大眼鱼龙科 Ophthalmosauridae

关节鳍鱼龙 Arthropterygius

*

大眼鱼龙亚科 Ophthalmosaurinae

莫勒斯鱼龙 Mollesaurus

大眼鱼龙 Ophthalmosaurus

	无齿潜鱼龙 Baptanodon

	实泳鱼龙 Acamptonectes

扁鳍鱼龙亚科 Platypterygiinae

短鳍鱼龙 Brachypterygius

慈母椎龙 Maiaspondylus

	阿戈尔鱼龙 Aegirosaurus

	巧泳鱼龙 Sveltonectes

“哈茨山扁鳍鱼龙” "Platypterygius" hercynicus

礁灵鱼龙 Caypullisaurus

	阿萨巴斯卡鱼龙 Athabascasaurus

	“南方扁鳍鱼龙”（=长喙鱼龙 Longirostria^[9]） "Platypterygius" australis

古生物学

无齿潜鱼龙化石发现于怀俄明州牛津期的桑当斯组（英语：Sundance Formation），该地层亦出土了浅隐龙科的泰特泳龙（英语：Tatenectes）和泛蜥龙及上龙科巨游龙的化石。^[4]^[10]

参见

鱼龙列表
鱼龙类研究历史（英语：Timeline of ichthyosaur research）

参考资料

^ Gilmore, C. W. Discovery of teeth in Baptanodon, an ichthyosaurian from the Jurassic of Wyoming. Science. 1902, 16 (414): 913–914. Bibcode:1902Sci....16..913G. PMID 17756122. doi:10.1126/science.16.414.913.
^ Massare, J.A.; Wahl, W.R.; Ross, M.; Connely, M.V. Palaeoecology of the marine reptiles of the Redwater Shale Member of the Sundance Formation (Jurassic) of central Wyoming, USA. Geological Magazine. 2014, 151 (1): 167–182. doi:10.1017/S0016756813000472.
^ ^3.0 ^3.1 O. C. Marsh. 1879. A new order of extinct reptiles (Sauranodonta), from the Jurassic Formation of the Rocky Mountains. The American Journal of Science and Arts, series 3
^ ^4.0 ^4.1 Marsh, O. C., 1880, Note on Sauranodon: American Journal of Science, 3rd series, v. 19, n. 4, p. 491.
^ Maisch MW, Matzke AT. 2000. The Ichthyosauria. Stuttgarter Beiträge zur Naturkunde, Serie B (Geologie und Paläontologie) 298: 1-159.
^ Patrick S. Druckenmiller; Erin E. Maxwell. A new Lower Cretaceous (lower Albian) ichthyosaur genus from the Clearwater Formation, Alberta, Canada. Canadian Journal of Earth Sciences. 2010, 47 (8): 1037–1053. Bibcode:2010CaJES..47.1037D. doi:10.1139/E10-028.
^ ^7.0 ^7.1 Valentin Fischer; et al. New Ophthalmosaurid Ichthyosaurs from the European Lower Cretaceous Demonstrate Extensive Ichthyosaur Survival across the Jurassic–Cretaceous Boundary. PLOS ONE. 2012, 7 (1): e29234. Bibcode:2012PLoSO...729234F. PMC 3250416  . PMID 22235274. doi:10.1371/journal.pone.0029234  .
^ Ilaria Paparella; Erin E. Maxwell; Angelo Cipriani; Scilla Roncacè; Michael W. Caldwell (2017). "The first ophthalmosaurid ichthyosaur from the Upper Jurassic of the Umbrian–Marchean Apennines (Marche, Central Italy)". Geological Magazine. 154 (4): 837–858. doi:10.1017/S0016756816000455.
^ Arkhangel’sky, M. S., 1998, On the Ichthyosaurian Genus Platypterygius: Palaeontological Journal, v. 32, n. 6, p. 611-615.
^ Marsh, O. C., 1895, The Reptilia of the Baptanodon Beds: American Journal of Science, 3rd series, v. 34., n. 299, p. 405-406.

[Gimore1902-1] Gilmore, C. W. Discovery of teeth in Baptanodon, an ichthyosaurian from the Jurassic of Wyoming. Science. 1902, 16 (414): 913–914. Bibcode:1902Sci....16..913G. PMID 17756122. doi:10.1126/science.16.414.913.

[2] Massare, J.A.; Wahl, W.R.; Ross, M.; Connely, M.V. Palaeoecology of the marine reptiles of the Redwater Shale Member of the Sundance Formation (Jurassic) of central Wyoming, USA. Geological Magazine. 2014, 151 (1): 167–182. doi:10.1017/S0016756813000472.

[Marsh1879-3] 3.0 ^3.1 O. C. Marsh. 1879. A new order of extinct reptiles (Sauranodonta), from the Jurassic Formation of the Rocky Mountains. The American Journal of Science and Arts, series 3

[Marsh1880-4] 4.0 ^4.1 Marsh, O. C., 1880, Note on Sauranodon: American Journal of Science, 3rd series, v. 19, n. 4, p. 491.

[Maisch_&_Matzke,_2000-5] Maisch MW, Matzke AT. 2000. The Ichthyosauria. Stuttgarter Beiträge zur Naturkunde, Serie B (Geologie und Paläontologie) 298: 1-159.

[DM10-6] Patrick S. Druckenmiller; Erin E. Maxwell. A new Lower Cretaceous (lower Albian) ichthyosaur genus from the Clearwater Formation, Alberta, Canada. Canadian Journal of Earth Sciences. 2010, 47 (8): 1037–1053. Bibcode:2010CaJES..47.1037D. doi:10.1139/E10-028.

[Acamptonectes-7] 7.0 ^7.1 Valentin Fischer; et al. New Ophthalmosaurid Ichthyosaurs from the European Lower Cretaceous Demonstrate Extensive Ichthyosaur Survival across the Jurassic–Cretaceous Boundary. PLOS ONE. 2012, 7 (1): e29234. Bibcode:2012PLoSO...729234F. PMC 3250416  . PMID 22235274. doi:10.1371/journal.pone.0029234  .

[8] Ilaria Paparella; Erin E. Maxwell; Angelo Cipriani; Scilla Roncacè; Michael W. Caldwell (2017). "The first ophthalmosaurid ichthyosaur from the Upper Jurassic of the Umbrian–Marchean Apennines (Marche, Central Italy)". Geological Magazine. 154 (4): 837–858. doi:10.1017/S0016756816000455.

[Platypterygius-9] Arkhangel’sky, M. S., 1998, On the Ichthyosaurian Genus Platypterygius: Palaeontological Journal, v. 32, n. 6, p. 611-615.

[10] Marsh, O. C., 1895, The Reptilia of the Baptanodon Beds: American Journal of Science, 3rd series, v. 34., n. 299, p. 405-406.

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