鍬鱗龍屬

锹鳞龙属; 化石时期：221–206 Ma PreЄ Є O S D C P T J K Pg N
	鍬鱗龍
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：	爬行綱 Reptilia
目：	†坚蜥目 Aetosauria
科：	†锹鳞龙科 Stagonolepidae
属：	†锹鳞龙属 Stagonolepis; Agassiz, 1844
模式種
	Stagonolepis robertsoni; Agassiz, 1844
種
	S. robertsoni Agassiz, 1844; S. olenkae Sulej, 2010;

鍬鱗龍屬（屬名：Stagonolepis）是種已滅絕主龍類爬行動物，屬於堅蜥目，生存於三疊紀晚期的诺利期。鍬鱗龍的化石已在蘇格蘭與波蘭發現。

鍬鱗龍是種四足、植食性動物，身體覆蓋者厚重鱗甲。鍬鱗龍行動緩慢，牠們使用厚重骨板來抵抗同時代伪鳄类掠食動物的攻擊。鍬鱗龍身長3公尺，頭部長達25公分；與身體相比，鍬鱗龍的頭部非常小頭部少於身體長度的10%。牠們的嘴部前段沒有牙齒，嘴部後段有適合咀嚼的釘狀牙齒，但喙狀嘴的前端往上拱起，可讓鍬鱗龍拔起植物（類似現在的豬），包括木賊、蕨類植物、以及蘇鐵^[1]。

種

模式種是S. robertsoni，化石發現於蘇格蘭的洛西茅斯砂岩層；第二個種是S. olenkae，化石發現於波蘭，地質年代比模式種還年輕^[2]。

某些古生物學家認為，發現於南美洲的Aetosauroides，是鍬鱗龍的次異名。Aetosauroides目前有兩個種：A. scagliai、A. subsulcatus。在2002年，史賓賽·盧卡斯（Spencer G. Lucas）將體形較大的種，歸類於鍬鱗龍的S. robertsoni，較小的種則歸類於S. wellesi^[3]。

一些發現於美國的化石，生存同年也是三疊紀晚期，原本是獨立屬Calyptosuchus，曾被改歸類成鍬鱗龍的第三個種S. wellesi。大部分研究認為鍬鱗龍、Calyptosuchus是兩個單系源，是兩個有效的獨立屬^[4]^[5]^[6]^[7]。

參考文獻

^ 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）.

外部連結

鍬鱗龍簡介（页面存档备份，存于互联网档案馆） Dinoruss網站
鍬鱗龍 Mikko's Phylogeny Archive網站

[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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