A ctenochasmatid pterosaur from the Portland Limestone Formation (Late Jurassic, Tithonian) of southern England

IF 1.2 4区地球科学 Q2 Earth and Planetary Sciences

Proceedings of the Geologists Association Pub Date : 2025-03-11 DOI:10.1016/j.pgeola.2025.101100

Roy E. Smith, David M. Martill

引用次数: 0

Abstract

A new specimen of pterosaurian mandible from the Late Jurassic (Tithonian) Portland Limestone Group of southern England is described. Morphological considerations permit assignment to Pterodactyloidea. The elongate slender mandible and numerous closely spaced alveoli suggest it is a member of the Ctenochasmatidae. A faint median ridge on the occlusal surface between two grooves, converging into a median groove anteriorly, and the lack of a distinct premaxilla suggest the specimen is part of the symphysis of the mandible. This is the first documented record of a pterodactyloid from the Portland Group of England.

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来自英格兰南部波特兰石灰石组（晚侏罗世，泰坦纪）的一条栉龙翼龙

描述了英格兰南部晚侏罗世波特兰石灰岩群中一个新的翼龙下颌骨标本。形态学上的考虑允许分配给翼手亚科。细长的下颌骨和许多紧密间隔的肺泡表明它是栉蛛科的一员。在两个凹槽之间的咬合表面有一个模糊的中脊，在前面汇聚成一个中沟，并且没有明显的前上颌骨表明该标本是下颌骨联合的一部分。这是来自英格兰波特兰群的第一个有文献记载的翼手类恐龙。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Proceedings of the Geologists Association 地学-地质学

CiteScore

2.70

自引率

8.30%

发文量

审稿时长

6-12 weeks

期刊介绍： The Proceedings of the Geologists'' Association is an international geoscience journal that was founded in 1859 and publishes research and review papers on all aspects of Earth Science. In particular, papers will focus on the geology of northwestern Europe and the Mediterranean, including both the onshore and offshore record. Following a long tradition, the PGA will focus on: i) a range of article types (see below) on topics of wide relevance to Earth Sciences ii) papers on aspects of Earth Science that have societal relevance including geoconservation and Earth management, iii) papers on palaeoenvironments and palaeontology of the Mesozoic and Cenozoic, iv) papers on aspects of Quaternary geology and climate change, and v) papers on the history of geology with particular reference to individuals that have shaped the subject. These topics will also steer the content of the themes of the Special Issues that are published in the PGA.