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阿拉利坡龙属

阿拉利坡龙属
化石时期:阿普第阶-阿尔布阶
~112 Ma
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 蜥形纲 Sauropsida
目: 翼龙目 Pterosauria
科: 鸟掌翼龙科 Ornithocheiridae
属: 阿拉利坡龙属 Araripesaurus
Price, 1971
模式种
卡氏阿拉利坡龙
Araripesaurus castilhoi

Price英语Llewellyn Ivor Price, 1971

阿拉利坡龙学名Araripesaurus)是翼手龙亚目翼龙的一个属,化石发现于巴西东北部桑塔纳群英语Santana Group罗穆阿尔多组英语Romualdo Formation,该地层的年龄可追溯到早白垩世阿普第阶阿尔布阶。模式种是卡氏阿拉利坡龙A. castilhoi)。[1]

发现与命名

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本属由巴西古生物学家卢埃林·伊沃·普莱斯英语Llewellyn Ivor Price(Llewellyn Ivor Price)于1971年命名,[1]模式种是卡氏阿拉利坡龙(Araripesaurus castilhoi)。属名取自阿勒莱皮高原英语Araripe Plateau种名致敬于1966年捐出含化石白垩结节的收集者莫阿瑟·马克斯·德·卡斯蒂略(Moacir Marques de Castilho)。正模标本DNPM (DGM 529-R)由部分翅膀组成,包括桡骨尺骨远端碎片、腕骨、全部掌骨和几节趾骨。该标本是具亚成体。翼展估计为2.2米(7英尺3英寸)。[2]已知有两件其它疑似标本;两者均由翅膀材料组成,第三个略大于正模标本,由普莱斯归入本属。

1985年,彼得·韦尔恩霍费尔英语Peter Wellnhofer(Peter Wellnhofer)命名了第二个物种桑塔纳阿拉利坡龙(Araripesaurus santanae)。[3]该物种连同韦尔恩霍费尔确立的两个未命名种均在1990年由克尔纳归入古魔翼龙属,成为桑塔纳古魔翼龙(Anhanguera santanae)。[4][5]

分类

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普莱斯将阿拉利坡龙归入鸟掌翼龙科[1]阿拉利坡龙是桑塔纳组发现的第一种翼龙。后来根据更完整遗骸命名了其它物种,这引发了人们对它们是否与阿拉利坡龙相同的疑问。1991年,研究人员亚历山大·克尔纳英语Alexander Kellner(Alexander Kellner)得出结论认为阿拉利坡龙与桑塔纳翼龙相同,但因缺乏鉴别特征而只能笼统地分类为翼手龙亚目。2000年,克尔纳对该属进行重新评估,并得出结论称正因为缺乏自衍征(独特特征)所以不能将其看作桑塔纳翼龙的异名,并在系统发育分析中后给出接近古魔翼龙科、比帆翼龙更衍生的位置。克尔纳还指出,阿拉利坡龙的形态特征类似于渔夫古魔翼龙,尽管要比后者小得多。[6][7]

参见

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参考资料

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  1. ^ 1.0 1.1 1.2 Price, L.L. A Presença de Pterosauria no Cretáceo Inferior da Chapada do Araripe, Brasil. Anais da Academia Brasileira de Ciências. 1971, 43: 451–461. 
  2. ^ R. L. Carroll. 1988. Vertebrate Paleontology and Evolution 1-698 [A. Behrensmeyer/A. Behrensmeyer/M. Uhen]
  3. ^ Wellnhofer, P. Neue Pterosaurier aus der Santana-Formation (Apt) der Chapada do Araripe, Brasilien. Palaeontographica Abteilung A. 1985, 187: 105–182. 
  4. ^ Frey, Eberhard; Tischlinger, Helmut; Buchy, Marie-Céline; Martill, David M. ?. Geological Society, London, Special Publications. 2003, 217: 233–266. doi:10.1144/GSL.SP.2003.217.01.14. 
  5. ^ Wellnhofer, P. Weitere Pterosaurierfunde aus der Santana-Formation (Apt) der Chapada do Araripe, Brasilien. Palaeontographica Abteilung A. 1991, 215: 43–101. 
  6. ^ Unwin, D. New pterosaurs from Brazil. Nature. 1988, 332: 398–399. doi:10.1038/332398a0. 
  7. ^ Dalla, F.V.; Ligabue, G. On the presence of a giant pterosaur in the Lower Cretaceous (Aptian) of Chapada do Araripe (northeastern Brazil). Bollettino della Società Paleontologica Italiana. 1993, 32 (1): 131–136. 
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阿拉利坡龙属
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