کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4746906 | 1642068 | 2015 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Turonian-Santonian echinoids from Wadi Qena, Eastern Desert, Egypt; a new arrangement of apical disc plating in spatangoids
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فسیل شناسی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Turonian-Santonian echinoids from Wadi Qena, Eastern Desert, Egypt; a new arrangement of apical disc plating in spatangoids Turonian-Santonian echinoids from Wadi Qena, Eastern Desert, Egypt; a new arrangement of apical disc plating in spatangoids](/preview/png/4746906.png)
چکیده انگلیسی
Eighteen echinoid species (seven regular and eleven irregular) belonging to twelve genera have been described from the Turonian-Santonian succession of two sections located in the northern part of Wadi Qena, Eastern Desert. The diversity of the recorded species is low in the Turonian (six species), but comparatively high in the Coniacian-Santonian (twelve species). Of the recorded species, Most of these species (72%) are recorded for the first time from Wadi Qena area, one left in open nomenclature, Mecaster sp., represents a new species, and two, Phymosoma microtuberculatum and Thylechinus (T.) said, represent new records for Egypt. The taxonomic rank of Parapygus sudrensis has been changed. Phymosoma microtuberculatum which is known from the 'Senonian' of southwest Europe is recorded herein in the lower Turonian. Two echinoid assemblage zones are recognizable in each of the studied two sections. They are correlated with other fossil assemblage zones in Egypt. Faunal affinity and paleobiogeography of the species are discussed. A new arrangement of apical disc plating in spatangoids is described and discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Cretaceous Research - Volume 55, July 2015, Pages 176-199
Journal: Cretaceous Research - Volume 55, July 2015, Pages 176-199
نویسندگان
Marouf Abdelaty Mohamed Abdelhamid,