干旱区生态环境知识资源中心(Arid): Bioerosion traces on the Campanian turtle remains: New data from the lagoonal deposits of the Quseir Formation, Kharga Oasis, Egypt

Arid

DOI	10.26879/1315
	Bioerosion traces on the Campanian turtle remains: New data from the lagoonal deposits of the Quseir Formation, Kharga Oasis, Egypt
	El Hedeny, Magdy; Mohesn, Sara; Tantawy, Abdel-Aziz; El-Sabbagh, Ahmed; Abdelgawad, Mohamed; Abu El-Kheir, Gebely
通讯作者	El-Sabbagh, A
来源期刊	PALAEONTOLOGIA ELECTRONICA
ISSN	1935-3952
EISSN	1094-8074
出版年	2023
英文摘要	The uppermost part of the Campanian Quseir Formation of Kharga Oasis, Egypt, contains a concentration of turtle skeletal remains in a lagoon setting. They appear as three successive horizons (I-III), alternated between the variegated shales and the glauconitic mudstones and conglomeratic layers within the Hindaw Member. However, bones recovered in horizon III present a higher preservation potential than the others. Therein, turtle remains are represented by mostly complete shells, partial shells and many scattered and weathered shell fragments. The studied turtles lived in small ponds and marshes and were deposited as autochthonous to parautochthonous relics. Their bones display significant bioerosion signatures on both carapace and plastron. The morphological analysis of the bioerosion structures preserved revealed 11 ichno-species, belonging to nine ichnogenera. Eight of these ichnotaxa are recorded for the first time in turtle bones of Egypt. The recognised bioerosional structures appear as borings, shallow chambers, grooves, and punctures produced by ticks, beetles, poly-chaete worms, fishes/crocodile, and gastropods. They were attributed to the ichnogen-era Karethraichnus, Cubiculum, Osteocallis, Radulichnus, Osteichnus, Osedacoides, Sulculites, and Machichnus. In addition, some bite marks assigned to Nihilichnus also occur on a carapace peripheral. This grade of bioerosion was likely caused by rela-tively long exposure time before the final deposition or burial. In some cases, borings may be produced during the host's lifetime. The new material considerably expands the stratigraphic and geographic distribution of this trace fossil assemblage and reveals that their producers may have been able to survive in other palaeoenvironmen-tal conditions.
英文关键词	turtles bioerosion trace fossils Campanian Kharga Oasis Egypt
类型	Article ; Early Access
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:001087036000001
WOS关键词	JURASSIC MORRISON FORMATION ; DINOSAUR BONES ; WESTERN DESERT ; MINAS-GERAIS ; BITE TRACES ; BOTHREMYDIDAE ; PALEOCENE ; REVISION ; INSECTA ; BORINGS
WOS类目	Paleontology
WOS研究方向	Paleontology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/397963
推荐引用方式 GB/T 7714	El Hedeny, Magdy,Mohesn, Sara,Tantawy, Abdel-Aziz,et al. Bioerosion traces on the Campanian turtle remains: New data from the lagoonal deposits of the Quseir Formation, Kharga Oasis, Egypt[J],2023.
APA	El Hedeny, Magdy,Mohesn, Sara,Tantawy, Abdel-Aziz,El-Sabbagh, Ahmed,Abdelgawad, Mohamed,&Abu El-Kheir, Gebely.(2023).Bioerosion traces on the Campanian turtle remains: New data from the lagoonal deposits of the Quseir Formation, Kharga Oasis, Egypt.PALAEONTOLOGIA ELECTRONICA.
MLA	El Hedeny, Magdy,et al."Bioerosion traces on the Campanian turtle remains: New data from the lagoonal deposits of the Quseir Formation, Kharga Oasis, Egypt".PALAEONTOLOGIA ELECTRONICA (2023).