PÁrraga Javier, Prieto-mÁrquez Albert
Museu de la Conca Dellà, Carrer del Museu 4, 25650 Isona, Lleida, Spain..
Zootaxa. 2019 Feb 12;4555(2):247-258. doi: 10.11646/zootaxa.4555.2.5.
We describe a new genus and species of a basal iguanodontian ornithopod dinosaur, Pareisactus evrostos, from lower Maastrichtian strata of the Conques Formation in the south-central Pyrenees of northeastern Spain. This animal is solely represented by a scapula characterized by having a dorsoventral extent of the proximal constriction as deep as it is thick; a lateral surface of the proximal region of the scapula under the acromion process forming a deep and thick roof over an extremely deep deltoid fossa; and a long apex of the glenoid that accounts for half of the maximum depth of the proximal region of scapula. Pareisactus is recovered as a member of Rhabdodontidae, sharing with Rhabdodon a well-demarcated deltoid ridge. P. evrostos represents the seventh species of rhabdodontid in Europe and third specimen of this endemic clade of European iguanodontians in the eastern Tremp Syncline of the southern Pyrenean region. [Zoobank registration: genus Pareisactus: urn:lsid:zoobank.org:act:0ACDCF80-1ECF-4EEF-8A77-9297CB7A1572, species P. evrostos: urn:lsid:zoo bank.org:act:8CB207EE-30CF-421D-A611-75DB57E92054].
我们描述了一种基干禽龙类鸟脚亚目恐龙的新属新种，即埃夫罗斯帕雷氏龙（Pareisactus evrostos），它来自西班牙东北部比利牛斯山脉中南部孔克组的马斯特里赫特阶下部地层。这种动物仅由一块肩胛骨代表，其特征为近端缩窄处的背腹延伸深度与厚度相同；肩峰突下方肩胛骨近端区域的外侧表面在极深的三角肌窝上方形成一个深且厚的顶；肩胛骨关节盂的长顶点占肩胛骨近端区域最大深度的一半。帕雷氏龙被归为赖氏龙科的成员，与赖氏龙一样有界限分明的三角嵴。埃夫罗斯帕雷氏龙是欧洲第七种赖氏龙科恐龙，也是比利牛斯山脉南部地区东部特伦普向斜中这种欧洲禽龙类特有分支的第三个标本。[动物学数据库注册：属名帕雷氏龙：urn:lsid:zoobank.org:act:0ACDCF80 - 1ECF - 4EEF - 8A77 - 9297CB7A1572，种名埃夫罗斯帕雷氏龙：urn:lsid:zoo bank.org:act:8CB207EE - 30CF - 421D - A611 - 75DB57E92054]
