The Last Pterosaurs: First Record from the Uppermost Maastrichtian of the Tremp Syncline (Northern Spain)  

作　　者：DALLA VECCHIA Fabio M. RIERA Violeta OMS Josep Oriol DINARS-TURELL Jaume GAETE Rodrigo GALOBART Angel 

机构地区：[1]Institut Català de Paleontologia "M. Crusafont" (ICP), Grup de Recerca del Mesozoic, Escola Industrial 23,E-08201 Sabadell,Spain [2]Universitat Autònoma de Barcelona,Departament de Geologia,Cerdanyola del Vallès,Barcelona,E-08193,Spain [3]Istituto Nazionale di Geofisica e Vulcanologia,Laboratorio di Paleomagnetismo,Via di Vigna Murata 605,I-00143 Roma,Italy [4]Museu de la Conca Dellà, C/del Museu 4,E-25650 Isona,Spain

出　　处：《Acta Geologica Sinica(English Edition)》2013年第5期1198-1227,共30页地质学报（英文版）

基　　金：supported by Ministerio de Ciencia e Innovación of the Spanish government (CGL2008-06533C03-01/02);the Departament de Cultura de la Generalitat de Catalunya

摘　　要：Pterosaur bones are for the first time reported from the Tremp Syncline （Spain） and the southern Pyrenees. They come from the Torrebilles-2 site （Isona, Lleida Province） in the upper Maastrichtian part of the Tremp Formation, which falls within the C29r magnetochron. Fragmentary long bones are referred to the Pterosauria based on their cortical thinness, micro-architecture, and histological features. They belong to very large to possibly giant individuals. The most complete specimen is possibly a partial right femur. The review of the Maastrichtian pterosaur record shows that only a few specimens can be referred to the C29r （which contains the K/Pg boundary）. The identification of fragmentary remains could improve our knowledge about the abundance and distribution of these flying sauropsids just before the end-Cretaceous mass extinction.Pterosaur bones are for the first time reported from the Tremp Syncline （Spain） and the southern Pyrenees. They come from the Torrebilles-2 site （Isona, Lleida Province） in the upper Maastrichtian part of the Tremp Formation, which falls within the C29r magnetochron. Fragmentary long bones are referred to the Pterosauria based on their cortical thinness, micro-architecture, and histological features. They belong to very large to possibly giant individuals. The most complete specimen is possibly a partial right femur. The review of the Maastrichtian pterosaur record shows that only a few specimens can be referred to the C29r （which contains the K/Pg boundary）. The identification of fragmentary remains could improve our knowledge about the abundance and distribution of these flying sauropsids just before the end-Cretaceous mass extinction.

关 键 词：PTEROSAURIA bone morphology HISTOLOGY latest Maastrichtian European Archipelago Ibero-Armorican Island Tremp Syncline. 

分 类 号：Q915[天文地球—古生物学与地层学]