气候变化领域集成服务门户(CCPortal): Polyonyx-like tracks from Middle-?Upper Jurassic red beds of Morocco: Implications for sauropod communities on southern margins of tethys

CCPortal

DOI	10.1016/j.palaeo.2019.109394
	Polyonyx-like tracks from Middle-?Upper Jurassic red beds of Morocco: Implications for sauropod communities on southern margins of tethys
	Oukassou M.; Klein H.; Lagnaoui A.; Charrière A.; Saber H.; Gierliński G.D.; Lallensack J.N.; Hminna A.; Boumaalif A.; Oussou A.; Ouarhache D.
发表日期	2019
ISSN	0031-0182
卷号	536
英文摘要	A new dinosaur tracksite is reported from continental red beds of the Jurassic (Late Bathonian-?Callovian) Isli Formation along the northern flank of the Aït Ali ou Ikkou Syncline of the Imilchil area, Central High Atlas, Morocco. The succession was deposited in a fluvio-lacustrine environment, and contains at least fourteen track-bearing levels. The diverse dinosaur-dominated ichnofauna includes the footprints of crocodylomorphs, pterosaurs, theropods, sauropods and ornithischians, together with numerous invertebrate traces. Here, we focus on a long sauropod trackway, which comprises nine consecutive manus-pes sets preserved as concave epireliefs. The low heteropody and asymmetry of manus prints with a large digit I (pollex) impression oriented medially, and a large triangular claw trace, which is posteriorly oriented, are characteristic of the ichnogenus Polyonyx. Different from typical Polyonyx is the narrow gauge pattern compared to the wide gauge observed in the type trackway from Portugal. Additional material from Morocco, similar to Polyonyx, comprises the trackway of a very small (?juvenile) individual found close to the main trackway, as well as a short trackway from a different locality in the Isli Formation. Our data from the Moroccan High Atlas indicates the presence of basal eusauropods in the Middle Jurassic-Early Cretaceous interval in the northwestern part of Gondwana for the first time, and suggests they inhabited a lacustrine paleoenvironment. © 2019 Elsevier B.V.
英文关键词	Bathonian; Central high atlas; Dinosaur trackway; Gondwana; Imilchil; Isli formation
语种	英语
scopus关键词	Bathonian; Cretaceous; dinosaur; geographical distribution; Gondwana; invertebrate; Jurassic; lacustrine environment; morphology; paleoecology; paleoenvironment; secondary succession; succession; trackway; Atlas Mountains; High Atlas; Morocco; Morocco; Portugal; Crocodylomorpha; Dinosauria; Invertebrata; Ornithischia; Polyonyx; Sauropoda; Theropoda
来源期刊	Palaeogeography, Palaeoclimatology, Palaeoecology
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/150753
作者单位	Laboratory of Sedimentary Basins Dynamic and Geological Correlations, Department of Geology, Faculty of Sciences Ben M'sik, Hassan II University, Sidi Othman, Casablanca, B.P. 7955, Morocco; Saurierwelt Paläontologisches Museum Alte Richt 7Neumarkt D-92318, Germany; Laboratory of Stratigraphy of Oil and Gas Bearing Reservoirs, Department of Paleontology and Stratigraphy, Institute of Geology and Petroleum Technologies, Kazan (Volga Region) Federal University, Kremlyovskaya Str. 18, Kazan, 420008, Russian Federation; Toulouse III University, 13 Terrasses de La Figuière, Anduze, 30140, France; Laboratory of Geodynamic and Geomatic, Department of Geology, Faculty of Sciences, Chouaïb Doukkali University, B.P. 20, El Jadida, 24000, Morocco; Polish Geological Institute, Ul. Rakowiecka 4, Warszawa, 00-975, Poland; Stowarzyszenie “Delta”, Ul. Sandomierska 4, Ostrowiec Św, 27-400, Poland; Moab Giants, 112W. SR 313, Moab, UT 84532, United States; Section Paleontology, Institute of Geosciences, Rheinische Friedri...
推荐引用方式 GB/T 7714	Oukassou M.,Klein H.,Lagnaoui A.,et al. Polyonyx-like tracks from Middle-?Upper Jurassic red beds of Morocco: Implications for sauropod communities on southern margins of tethys[J],2019,536.
APA	Oukassou M..,Klein H..,Lagnaoui A..,Charrière A..,Saber H..,...&Ouarhache D..(2019).Polyonyx-like tracks from Middle-?Upper Jurassic red beds of Morocco: Implications for sauropod communities on southern margins of tethys.Palaeogeography, Palaeoclimatology, Palaeoecology,536.
MLA	Oukassou M.,et al."Polyonyx-like tracks from Middle-?Upper Jurassic red beds of Morocco: Implications for sauropod communities on southern margins of tethys".Palaeogeography, Palaeoclimatology, Palaeoecology 536(2019).