干旱区生态环境知识资源中心(Arid): Palaeoecology and taphonomy of a middle Miocene domical cheilostome bryozoan, Siwa Oasis, the northern Western Desert of Egypt

Arid

DOI	10.1111/let.12419
	Palaeoecology and taphonomy of a middle Miocene domical cheilostome bryozoan, Siwa Oasis, the northern Western Desert of Egypt
	El Hedeny, Magdy; Ernest, Andrej; El-Sabbagh, Ahmed; Rashwan, Mohammed; Al Farraj, Saleh; Al Basher, Ghada; Mansour, Heba
通讯作者	Al Farraj, S (corresponding author), King Saud Univ, Coll Sci, POB 2455, Riyadh 11451, Saudi Arabia.
来源期刊	LETHAIA
ISSN	0024-1164
EISSN	1502-3931
出版年	2021
英文摘要	A primary study of bioerosional structures and skeletobionts associated with an almost monotypic assemblage of free-lying bryozoan colonies of Celleporaria? sp., from the middle Miocene succession of the Siwa Oasis, Egypt, revealed four groups of encrusters (serpulids, sheet-like cheilostome bryozoans, balanoid barnacles and oysters) and eight different ichnotaxa. Undersides of the colonies have basal exterior walls, which are relatively richer in encrusters than are the convex sides. The dominant bioerosional structures were due to the boring activities of non-predatory organisms. The diversity of macro-bioerosional ichnotaxa is moderate and includes Trypanites, Gastrochaenolites, Maeandropolydora, Caulostrepsis, Renichnus, Spirolites and Centrichnus. In addition, some conical borings perpendicularly penetrating the shells could belong to the predatory tracemakers of Oichnus. Despite a moderate total ichnodiversity, the observed sample diversity of ichnofossils is low (about 35% of the total specimens studied). This is explained by a relatively high sedimentation rate with only short periods of exposure on the seafloor. The dome-shaped bryozoan occurrence is interpreted to represent a parautochthonous assemblage, which may have been influenced by shallow-water processes in response to storm activity.
英文关键词	domal bryozoan colonies encrustation bioerosion middle Miocene Egypt
类型	Article ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000640641000001
WOS类目	Paleontology
WOS研究方向	Paleontology
来源机构	King Saud University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/352379
作者单位	[El Hedeny, Magdy; El-Sabbagh, Ahmed] Alexandria Univ, Dept Geol, Fac Sci, Alexandria 21568, Egypt; [Ernest, Andrej] Univ Hamburg, Inst Geol, Bundesstr 55, D-20146 Hamburg, Germany; [Rashwan, Mohammed] Alexandria Univ, Fac Educ, Dept Biol & Geol Sci, Alexandria 14037, Egypt; [Al Farraj, Saleh; Al Basher, Ghada] King Saud Univ, Coll Sci, POB 2455, Riyadh 11451, Saudi Arabia
推荐引用方式 GB/T 7714	El Hedeny, Magdy,Ernest, Andrej,El-Sabbagh, Ahmed,et al. Palaeoecology and taphonomy of a middle Miocene domical cheilostome bryozoan, Siwa Oasis, the northern Western Desert of Egypt[J]. King Saud University,2021.
APA	El Hedeny, Magdy.,Ernest, Andrej.,El-Sabbagh, Ahmed.,Rashwan, Mohammed.,Al Farraj, Saleh.,...&Mansour, Heba.(2021).Palaeoecology and taphonomy of a middle Miocene domical cheilostome bryozoan, Siwa Oasis, the northern Western Desert of Egypt.LETHAIA.
MLA	El Hedeny, Magdy,et al."Palaeoecology and taphonomy of a middle Miocene domical cheilostome bryozoan, Siwa Oasis, the northern Western Desert of Egypt".LETHAIA (2021).