锹鳞龙属

锹鳞龙属; 化石时期：221–206 Ma PreЄ Є O S D C P T J K Pg N
	锹鳞龙
保护状况
	无效状况
科学分类
界：	动物界 Animalia
门：	脊索动物门 Chordata
纲：	爬行纲 Reptilia
目：	†坚蜥目 Aetosauria
科：	†锹鳞龙科 Stagonolepidae
属：	†锹鳞龙属 Stagonolepis; Agassiz, 1844
模式种
	Stagonolepis robertsoni; Agassiz, 1844
种
	S. robertsoni Agassiz, 1844; S. olenkae Sulej, 2010;

锹鳞龙属（属名：Stagonolepis）是种已灭绝主龙类爬行动物，属于坚蜥目，生存于三叠纪晚期的诺利期。锹鳞龙的化石已在苏格兰与波兰发现。

锹鳞龙是种四足、植食性动物，身体覆盖者厚重鳞甲。锹鳞龙行动缓慢，它们使用厚重骨板来抵抗同时代伪鳄类掠食动物的攻击。锹鳞龙身长3公尺，头部长达25公分；与身体相比，锹鳞龙的头部非常小头部少于身体长度的10%。它们的嘴部前段没有牙齿，嘴部后段有适合咀嚼的钉状牙齿，但喙状嘴的前端往上拱起，可让锹鳞龙拔起植物（类似现在的猪），包括木贼、蕨类植物、以及苏铁^[1]。

种

模式种是S. robertsoni，化石发现于苏格兰的洛西茅斯砂岩层；第二个种是S. olenkae，化石发现于波兰，地质年代比模式种还年轻^[2]。

某些古生物学家认为，发现于南美洲的Aetosauroides，是锹鳞龙的次异名。Aetosauroides目前有两个种：A. scagliai、A. subsulcatus。在2002年，史宾赛·卢卡斯（Spencer G. Lucas）将体形较大的种，归类于锹鳞龙的S. robertsoni，较小的种则归类于S. wellesi^[3]。

一些发现于美国的化石，生存同年也是三叠纪晚期，原本是独立属Calyptosuchus，曾被改归类成锹鳞龙的第三个种S. wellesi。大部分研究认为锹鳞龙、Calyptosuchus是两个单系源，是两个有效的独立属^[4]^[5]^[6]^[7]。

参考文献

^ Palmer, D. (编). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. 1999: 96. ISBN 1-84028-152-9.
^ Sulej, Tomasz. The skull of an early Late Triassic aetosaur and the evolution of the stagonolepidid archosaurian reptiles. Zoological Journal of the Linnean Society. 2010, 158 (4): 860–881. doi:10.1111/j.1096-3642.2009.00566.x.
^ Heckert, A.B.; Lucas, S.G. South American occurrences of the Adamanian (Late Triassic: latest Carnian) index taxon Stagonolepis (Archosauria: Aetosauria) and their biochronological significance. Journal of Paleontology. 2002, 76 (5): 852–863. doi:10.1666/0022-3360(2002)076<0852:SAOOTA>2.0.CO;2.
^ Parker, William G. Reassessment of the Aetosaur "Desmatosuchus" chamaensis with a reanalysis of the phylogeny of the Aetosauria (Archosauria:Pseudosuchia) (PDF). Journal of Systematic Palaeontology. 2007, 5: 41–68 [2012-03-22]. doi:10.1017/S1477201906001994. （原始内容存档 (PDF)于2013-11-13）.
^ Parker, W. G.; Stocker, M. R.; Irmis, R. B. A new desmatosuchine aetosaur (Archosauria; Suchia) from the Upper Triassic Tecovas Formation (Dockum Group) of Texas. Journal of Vertebrate Paleontology. 2008, 28 (2): 692–701. ISSN 0272-4634. doi:10.1671/0272-4634(2008)28[692:ANDAAS]2.0.CO;2.
^ Desojo, J.B.; Ezcurra, M.D. A reappraisal of the taxonomic status of Aetosauroides (Archosauria, Aetosauria) specimens from the Late Triassic of South America and their proposed synonymy with Stagonolepis. Journal of Vertebrate Paleontology. 2011, 31 (3): 596–609. doi:10.1080/02724634.2011.572936.
^ Julia B. Desojo, Martin D. Ezcurra and Edio E. Kischlat. A new aetosaur genus (Archosauria: Pseudosuchia) from the early Late Triassic of southern Brazil (PDF). Zootaxa. 2012, 3166: 1–33 [2012-03-22]. ISSN 1175-5326. （原始内容存档 (PDF)于2021-03-09）.

外部链接

锹鳞龙简介（页面存档备份，存于互联网档案馆） Dinoruss网站
锹鳞龙 Mikko's Phylogeny Archive网站

[EoDP-1] Palmer, D. (编). The Marshall Illustrated Encyclopedia of Dinosaurs and Prehistoric Animals. London: Marshall Editions. 1999: 96. ISBN 1-84028-152-9.

[Sulej2010-2] Sulej, Tomasz. The skull of an early Late Triassic aetosaur and the evolution of the stagonolepidid archosaurian reptiles. Zoological Journal of the Linnean Society. 2010, 158 (4): 860–881. doi:10.1111/j.1096-3642.2009.00566.x.

[HL02-3] Heckert, A.B.; Lucas, S.G. South American occurrences of the Adamanian (Late Triassic: latest Carnian) index taxon Stagonolepis (Archosauria: Aetosauria) and their biochronological significance. Journal of Paleontology. 2002, 76 (5): 852–863. doi:10.1666/0022-3360(2002)076<0852:SAOOTA>2.0.CO;2.

[Heliocanthus-4] Parker, William G. Reassessment of the Aetosaur "Desmatosuchus" chamaensis with a reanalysis of the phylogeny of the Aetosauria (Archosauria:Pseudosuchia) (PDF). Journal of Systematic Palaeontology. 2007, 5: 41–68 [2012-03-22]. doi:10.1017/S1477201906001994. （原始内容存档 (PDF)于2013-11-13）.

[PSI08-5] Parker, W. G.; Stocker, M. R.; Irmis, R. B. A new desmatosuchine aetosaur (Archosauria; Suchia) from the Upper Triassic Tecovas Formation (Dockum Group) of Texas. Journal of Vertebrate Paleontology. 2008, 28 (2): 692–701. ISSN 0272-4634. doi:10.1671/0272-4634(2008)28[692:ANDAAS]2.0.CO;2.

[DE11-6] Desojo, J.B.; Ezcurra, M.D. A reappraisal of the taxonomic status of Aetosauroides (Archosauria, Aetosauria) specimens from the Late Triassic of South America and their proposed synonymy with Stagonolepis. Journal of Vertebrate Paleontology. 2011, 31 (3): 596–609. doi:10.1080/02724634.2011.572936.

[Aetobarbakinoides-7] Julia B. Desojo, Martin D. Ezcurra and Edio E. Kischlat. A new aetosaur genus (Archosauria: Pseudosuchia) from the early Late Triassic of southern Brazil (PDF). Zootaxa. 2012, 3166: 1–33 [2012-03-22]. ISSN 1175-5326. （原始内容存档 (PDF)于2021-03-09）.

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