Giant pterosaur tracks from the Late Campanian (Late Cretaceous) of northeastern Mexico

墨西哥东北部坎帕尼亚晚期（白垩纪晚期）的巨型翼龙足迹

• 批准号: 27215379
• 负责人: Professor Dr. Eberhard Frey
• 金额: --
• 依托单位: Museo del Desierto
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/27215379?language=en
• 关键词: Giant; pterosaur; tracks; Late; Campanian

A sequence of pterosaurian manus and pes imprints from the Late Campanian of NE Mexico points to the existence of a pterosaur of more than twice the size of the largest pterosaur known to date, Hatzegopteryx from the Late Cretaceous of Romania with a calculated wingspan of 12 m. The Mexican trackway consists of four prints, each with a length of 800 mm. They were produced by a pterosaur with a wingspan of more than 20 metres. The sequence of footprints was discovered in terrestrial to shallow marine siltstones of the Late Campanian Cerro del Pueblo Formation at Las Aguilas, a site located 5 km east of Porvenir El Jalpa in S Coahuila. The stride measures 3.8 metres and the trackway width is calculated by us to approximate 5 metres. The largest pterosaur pes imprints hitherto recorded come from the Early Cretaceous Uhangri Formation of S Korea, with a maximum pes length of 380 mm and were referred to an azdarchoid pterosaur with a wingspan of about 12-14 metres. The proposal refers to an initial excavation, which will be expanded in follow-up projects.

墨西哥东北部坎帕尼亚晚期的一系列翼龙手和足的印记表明，存在着一种翼龙，其大小是迄今为止已知的最大翼龙的两倍多，这种翼龙来自罗马尼亚白垩纪晚期，翼展为12米。墨西哥赛道由四个版画组成，每个版画的长度为800毫米，它们是由翼展超过20米的翼龙制作的。这一系列足迹是在位于科阿韦拉州南部Porvenir El Jalpa以东5公里的Las Aguilas的Campanian晚期Cerro del Pueblo地层的陆地至浅海粉砂岩中发现的。跨度为3.8米，我们计算的轨道宽度约为5米。迄今为止最大的翼龙化石来自韩国早白垩世的乌汉里组，最大化石长度为380毫米，被认为是一种翼展约12-14米的阿兹达索翼龙。该提案提到了初步挖掘，这将在后续项目中扩大。