Upper Jurassic record of Polyphylloseris (Egypt, Northern Sinai)

Journal article


Publication Details

Author(s): Gameil M, Fürsich F, H. Mandurah M
Journal: Arabian Journal of Geosciences
Publication year: 2013
Volume: 6
Journal issue: 11
Pages range: 4271-4278
ISSN: 1866-7511
Language: English


Abstract


Genus Polyphylloseris is a scleractinian colonial coral that has been established by d’Orbigny (1849) from the Neocomian of Yonne, France. The genus is characterized by having elevated domal calices that are mammillar or craterlike in shape and with porous confluent septa. Columella is absent or rudimentary, and the lower surface of the corallum is covered with a thick and wrinkled holotheca. Specimens having the above-mentioned characteristics have been collected from the Upper Jurassic Arousiah Member of the Masajid Formation (Callovian–Oxfordian) of Gebel Maghara, Northern Sinai, Egypt. They are characterized by having a cupolate colonial form and porous pennulate septa which reach 40–50 in number. Based on these characters and other characters such as density of septa, height, and width of mammillar calices, the studied material is attributed to a new species named Polyphylloseris magharensis. The new species is a first undoubted record of Polyphylloseris in the Jurassic. Previously recorded undoubted ages of the genus are Early and Late Cretaceous. The fewer number of septa and the smaller-sized and closer mammillar calices allow differentiation of the species from other species such as Polyphylloseris icaunensis d’Orbigny and Polyphylloseris convexa d’Orbigny.



FAU Authors / FAU Editors

Fürsich, Franz Prof. Dr.
Naturwissenschaftliche Fakultät


External institutions with authors

Cairo University
King Abdulaziz University (KAU) / جامعة الملك عبد العزيز


How to cite

APA:
Gameil, M., Fürsich, F., & H. Mandurah, M. (2013). Upper Jurassic record of Polyphylloseris (Egypt, Northern Sinai). Arabian Journal of Geosciences, 6(11), 4271-4278. https://dx.doi.org/10.1007/s12517-012-0691-6

MLA:
Gameil, Mohammed, Franz Fürsich, and Mohammed H. Mandurah. "Upper Jurassic record of Polyphylloseris (Egypt, Northern Sinai)." Arabian Journal of Geosciences 6.11 (2013): 4271-4278.

BibTeX: 

Last updated on 2018-06-08 at 13:23