Mosasaur (Reptilia, Mosasauridae) remains from the Upper Cretaceous of Colombia, including the first occurrence of the genus Globidens

IF 1.9 3区地球科学 Q1 GEOLOGY

Cretaceous Research Pub Date : 2024-08-30 DOI:10.1016/j.cretres.2024.105997

Juan S. López-Rueda , Michael J. Polcyn , Johan Lindgren , Luis E. Cruz-Guevara , Andrés S. Rodríguez-Sañudo

引用次数: 0

Abstract

Isolated mosasaur teeth and vertebrae recovered from beds of the Guadalupe Group of central Boyacá, Colombia, are reported. A partial tooth crown identified as Globidens sp., found in the Labor-Tierna Formation (Maastrichtian), represents the first report of this genus from northern South America and its most equatorial occurrence. A tooth crown recovered from the Plaeners Formation (upper Campanian–lower Maastrichtian), represents the youngest record of the subfamily Plioplatecarpinae in Colombia. These occurrences collectively constitute the youngest record of the family Mosasauridae in Colombia and expand both the taxonomic diversity and biogeography of mosasaurids in northern South America.

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哥伦比亚上白垩世的 Mosasaur（爬行动物， Mosasauridae）遗骸，包括首次出现的 Globidens 属

本文报告了从哥伦比亚博亚卡中部瓜达卢佩组的岩床中发现的孤立的沧龙牙齿和脊椎骨。在Labor-Tierna地层（马斯特里赫特期）发现的被鉴定为Globidens sp.的部分齿冠代表了该属在南美洲北部及其最赤道地区的首次报道。在 Plaeners Formation（上元古界-下元古界）发现的一个齿冠代表了哥伦比亚 Plioplatecarpinae 亚科最年轻的记录。这些发现共同构成了沧龙科在哥伦比亚最年轻的记录，拓展了南美洲北部沧龙科的分类多样性和生物地理学。

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

Cretaceous Research 地学-地质学

CiteScore

4.10

自引率

19.00%

发文量

235

审稿时长

12 weeks

期刊介绍： Cretaceous Research provides a forum for the rapid publication of research on all aspects of the Cretaceous Period, including its boundaries with the Jurassic and Palaeogene. Authoritative papers reporting detailed investigations of Cretaceous stratigraphy and palaeontology, studies of regional geology, and reviews of recently published books are complemented by short communications of significant new findings. Papers submitted to Cretaceous Research should place the research in a broad context, with emphasis placed towards our better understanding of the Cretaceous, that are therefore of interest to the diverse, international readership of the journal. Full length papers that focus solely on a local theme or area will not be accepted for publication; authors of short communications are encouraged to discuss how their findings are of relevance to the Cretaceous on a broad scale. Research Areas include: • Regional geology • Stratigraphy and palaeontology • Palaeobiology • Palaeobiogeography • Palaeoceanography • Palaeoclimatology • Evolutionary Palaeoecology • Geochronology • Global events.