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globalchange > 过去全球变化的重建

DOI:	10.1371/journal.pone.0090751
论文题名:	Dinosaur Footprints and Other Ichnofauna from the Cretaceous Kem Kem Beds of Morocco
作者:	Nizar Ibrahim; David J. Varricchio; Paul C. Sereno; Jeff A. Wilson; Didier B. Dutheil; David M. Martill; Lahssen Baidder; Samir Zouhri
刊名:	PLOS ONE
ISSN:	1932-6203
出版年:	2014
发表日期:	2014-3-6
卷:	9, 期:3
语种:	英语
英文关键词:	Theropoda ; Dinosaurs ; Trace fossils ; Sauropoda ; Cretaceous period ; Fossils ; Turtles ; Marine fossils
英文摘要:	We describe an extensive ichnofossil assemblage from the likely Cenomanian-age ‘lower’ and ‘upper’ units of the ‘Kem Kem beds’ in southeastern Morocco. In the lower unit, trace fossils include narrow vertical burrows in cross-bedded sandstones and borings in dinosaur bone, with the latter identified as the insect ichnotaxon Cubiculum ornatus. In the upper unit, several horizons preserve abundant footprints from theropod dinosaurs. Sauropod and ornithischian footprints are much rarer, similar to the record for fossil bone and teeth in the Kem Kem assemblage. The upper unit also preserves a variety of invertebrate traces including Conichnus (the resting trace of a sea-anemone), Scolicia (a gastropod trace), Beaconites (a probable annelid burrow), and subvertical burrows likely created by crabs for residence and detrital feeding on a tidal flat. The ichnofossil assemblage from the Upper Cretaceous Kem Kem beds contributes evidence for a transition from predominantly terrestrial to marine deposition. Body fossil and ichnofossil records together provide a detailed view of faunal diversity and local conditions within a fluvial and deltaic depositional setting on the northwestern coast of Africa toward the end of the Cretaceous.
URL:	http://journals.plos.org/plosone/article/file?id=10.1371/journal.pone.0090751&type=printable
Citation statistics:
资源类型:	期刊论文
标识符:	http://119.78.100.158/handle/2HF3EXSE/18021
Appears in Collections:	过去全球变化的重建影响、适应和脆弱性科学计划与规划气候变化与战略全球变化的国际研究计划气候减缓与适应气候变化事实与影响

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作者单位:

Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois, United States of America;Department of Earth Sciences, Montana State University, Bozeman, Montana, United States of America;Department of Organismal Biology and Anatomy, University of Chicago, Chicago, Illinois, United States of America;Museum of Paleontology and Department of Earth and Environmental Sciences, University of Michigan, Ann Arbor, Michigan, United States of America;15 Passage du Buisson Saint-Louis, Paris, France;School of Earth and Environmental Sciences, University of Portsmouth, Portsmouth, United Kingdom;Laboratoire de Géosciences, Faculté des Sciences Aïn Chock, Université Hassan II, Casablanca, Morocco;Laboratoire de Géosciences, Faculté des Sciences Aïn Chock, Université Hassan II, Casablanca, Morocco

Recommended Citation:

Nizar Ibrahim,David J. Varricchio,Paul C. Sereno,et al. Dinosaur Footprints and Other Ichnofauna from the Cretaceous Kem Kem Beds of Morocco[J]. PLOS ONE,2014-01-01,9(3)

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