首页> 美国卫生研究院文献>Scientific Reports >Ferrodraco lentoni gen. et sp. nov. a new ornithocheirid pterosaur from the Winton Formation (Cenomanian–lower Turonian) of Queensland Australia
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Ferrodraco lentoni gen. et sp. nov. a new ornithocheirid pterosaur from the Winton Formation (Cenomanian–lower Turonian) of Queensland Australia

机译:扁豆Ferrodraco gen。等。十一月一种来自澳大利亚昆士兰州温顿组(西诺曼尼亚-下土伦)的新的食人龙翼龙

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摘要

The Australian pterosaur record is poor by world standards, comprising fewer than 20 fragmentary specimens. Herein, we describe the new genus and species Ferrodraco lentoni gen. et sp. nov., based on the most complete pterosaur specimen ever found in Australia, and the first reported from the Winton Formation (Cenomanian–lower Turonian). The presence of premaxillary and mandibular crests, and spike-shaped teeth with subcircular bases, enable Ferrodraco to be referred to Anhangueria. Ferrodraco can be distinguished from all other anhanguerian pterosaurs based on two dental characters: the first premaxillary and mandibular tooth pairs are small; and the fourth–seventh tooth pairs are smaller than the third and eighth ones. Ferrodraco was included in a phylogenetic analysis of Pterosauria and resolved as the sister taxon to Mythunga camara (upper Albian Toolebuc Formation, Australia), with that clade occupying the most derived position within Ornithocheiridae. Ornithocheirus simus (Albian Cambridge Greensand, England), Coloborhynchus clavirostris (Valanginian Hastings Sands, England), and Tropeognathus mesembrinus (upper Aptian–lower Albian Romualdo Formation, Brazil) were resolved as successive sister taxa, which suggests that ornithocheirids were cosmopolitan during the Albian–Cenomanian. Furthermore, the stratigraphic age of Ferrodraco lentoni (Cenomanian–lower Turonian) implies that anhanguerians might have survived later in Australia than elsewhere.
机译:按照世界标准,澳大利亚翼龙的记录很差,包括不到20个碎片标本。在此,我们描述了新的扁豆属和种。等。十一月,基于澳大利亚有史以来最完整的翼龙标本,并首次报道了温顿组(西诺曼尼亚-下土伦)。上颌前颌骨和下颌骨齿以及带有圆形底基的尖齿形牙齿的存在使Ferrodraco可以被称为Anhangueria。根据两个牙齿特征,可以将Ferrodraco与所有其他anhanguerian翼龙区分开:第一对上颌和下颌牙齿对很小;第四和第七对齿比第三和第八对小。 Ferrodraco被包括在翼龙的系统发育分析中,并被解析为Mythunga camara(澳大利亚Albian Toolebuc上层地层)的姊妹分类群,该进化枝在鸟嘴兽科中占据了最多的位置。 Ornithocheirus simus(英格兰的Albian Cambridge Greensand),Coloborhynchus clavirostris(英格兰的Valanginian Hastings Sands)和Tropeognathus mesembrinus(巴西的Aptian-Albian Romualdo组的上层)被解析为连续的姊妹类群,这表明鸟食性鸟类是世界性的。 –切诺曼尼亚人。此外,扁铁的地层时代(西诺曼尼亚-下土伦)表明,在澳大利亚,航海者的生存时间可能比其他地方晚。

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