Notatudiadema and Aegyptiaris: Two new regular echinoids genera with two new species from the Cenomanian of north Sinai,Egypt |
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| Affiliation: | 1. Ain Shams University, Faculty of Science, Geology Department, Abbasyia, Cairo, Egypt;2. Cairo Geological Museum, Geological Survey of Egypt, Athar El-Naby, Maadi, Cairo, Egypt;1. Institute of Molecular Biotechnology, NAWI Graz, Graz University of Technology, Petersgasse 14, 8010, Graz, Austria;2. Institute of Organic Chemistry, NAWI Graz, Graz University of Technology, Stremayrgasse, 9, 8010, Graz, Austria;1. Phytochemistry Unit, Herbal Medicine Research Centre, Institute for Medical Research, Jalan Pahang, 50588 Kuala Lumpur, Malaysia;2. Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China;3. Medical Entomology Unit, WHO Collaborating Centre, Institute for Medical Research, Jalan Pahang, 50588 Kuala Lumpur, Malaysia;4. National Research Institute for Family Planning of China, Beijing 100081, PR China;1. Sweet Persimmon Research Institute, Gyeongnam Agricultural Research and Extension Services, Gimhae 621-802, Republic of Korea;2. Department of Horticulture, Institute of Agriculture and Life Science, Gyeongsang National University, Jinju 660-701, Republic of Korea;3. Department of Fruit Tree, Korea National College of Agriculture and Fisheries, Hwaseong 445-760, Republic of Korea;1. College of Chinese Medicine, Hebei University, Baoding 071002, China;2. The School of Basic Medical Science, Guangzhou University of Chinese Medicine, Guangzhou 510006, Guangdong Province, China;3. Guangdong Provincial Academy of Chinese Medical Sciences, Guangdong Provincial Traditional Chinese Medicine Hospital, Guangzhou 510006, Guangdong Province, China;1. Department of Geography, University of British Columbia, 1984 West Mall, Vancouver, BC V6T 1Z2, Canada;2. Geography Department, University of California at Berkeley, 507 McCone Hall, Berkeley, CA 94709, USA |
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| Abstract: | Revision of the Cenomanian echinoids deposited in the Cairo Geological Museum resulted in the erection of two new genera with two new species of regular echinoids. The first, Notatudiadema rekeibensis gen. and sp. nov. is established for specimens from the Cenomanian of Gabal El-Rekeib, southeast the Maghara massif, north Sinai to accommodate diadematoid echinoids having hemi-crenulate ambital and sub-ambital interambulacral tubercles with the adapical part of platform non-crenulate and the adoral one of same tubercle coarsely crenulate. The second is Aegyptiaris halalensis gen. and sp. nov., erected for material from the lower Cenomanian of Gabal El-Halal, northeast Sinai as an emiratiid echinoid with throughout polyporus ambulacra and extremely reduced adapical ambulacral tubercles. The functional morphology and paleobiology of these taxa are also discussed. A new family is established: family Monodiadematidae fam. nov. |
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| Keywords: | Cenomanian Regular echinoids New taxa North Sinai |
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