Age Formation Macro-fauna genera Turonian Late           Wata  Formation   bivalves gastropods ammonites echinoids Curostrea, Pholadomya       Middle Curostrea, Praeradiolites, Durania, Pholadomya Turritella, Tylostoma, Coilopoceras Phymosoma, Coenholectypus, Petalobrissus Early Phelopteria, Curostrea, Tylostoma, Thomasites, Choffaticeras, Petalobrissus, Hemiaster Cenomanian Late   Galala   Formation Brachidontes, Barbatia, Cucullaea, Nayadina, Costagyra, Ceratostreon, Ilymatogyra, Rhynchostreon, Ambigostrea, Rastellum, Chondrodonta,   Cimolithium, Nerinea, Neolobites, Micopedina, Heterodiadema, Coenholectypus Middle Barbatia, Nayadina, Ceratostreon, Ilymatogyra, Rhynchostreon, Chondrodonta, Praeradiolites, Lucina, Nerinea, Aptyxiella , Aporrhais, Pterodonta, Pterocera, Ampullina,   Tetragramma, Coenholectypus Early Nucula, Inopera, Barbatia, Pseudoptera,Plagiostoma, Ceratostreon,Rhynchostreon,Gyrostrea, Chondrodonta, Eoradiolites,Maghrebella   Aporrhais, Pterodonta, Pterocera, Ampullina   Tetragramma, Goniopygus, Coenholectypus Hemiaster

Table 1: Upper Cretaceous macro-fauna genera that recorded from Gebel Yelleg.