摩洛哥白垩纪晚期Alococopros的桡足石

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

Proceedings of the Geologists Association Pub Date : 2024-02-01 DOI:10.1016/j.pgeola.2023.11.005

Christopher J. Duffin , David J. Ward

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引用次数: 0

摘要

摩洛哥胡里卜加省 Ouled Abdoun 磷酸盐盆地 Sidi Chennane 采石场 K/Pg 边界下约 2 米处的上 Couche III 骨床（最晚马斯特里赫特期）磷酸盐地层中发现了一小批桡足类（粪便化石）。这些共生石具有独特的形态，可以确定它们属于ichnogenus Alococopros。这是摩洛哥晚白垩世的首个迭石记录。在一些标本中，夹杂着三砾石和抛光的磷酸盐碎屑，这表明鳄鱼或螯龙可能是其制造者。

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Coprolites of the ichnogenus Alococopros from the Late Cretaceous of Morocco

A small collection of coprolites (fossilised faeces) is described from the Upper Couche III Bone Bed (latest Maastrichtian) phosphate horizon, approximately 2 m below the K/Pg boundary of Sidi Chennane Quarry in the Ouled Abdoun phosphate basin, Khouribga Province, Morocco. The coprolites have a distinctive morphology that identifies them as belonging in the ichnogenus Alococopros. This is the first record of the ichnogenus from the Late Cretaceous of Morocco. The coprolites are assigned to A. milnei isp. nov. Inclusions of triturated and polished phosphate debris in some specimens suggest that crocodilians or chelonians may have been the possible producer.

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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.