Age Formation Macro-fauna species Albian Late   Halal Corals gastropods bivalves ammonites echinoids       Petrocera incerta, Colombellina fusiformis, Drepanocheilus muli,Pleurotomaria neocomiensis Protocardia hillana, Pinna robinaldina, Pholadomya gigantean, Chlamys goldfussi, Glossus aquilinus     Middle         Acteonella delgadoi, Drepanocheilus magharensis, Ampullina prolonga, Glauconia deserti, Nerinea abbassi Ceratostreon  flabelatum, Neithea quinquecostata     Early   Aneiza         Ampullina ervyna, Diastoma ornate, Nerinea mistanensis, Pseudomesalia deserti, Riselloidea tricarinata, Turriscala darwishi Nucula magaritifera, Maghrebella deserti, Corbula magharensis, Modiolus manzourensis, Cameleopha pharaonis Teragonaites nautilodes   Aptian Late   Risan Epistreptophyllum manzourensis, Epistreptophyllum sp.,Trochosmilia cretacea,Mixastraea sp.,Paracycloseris sp.,Stylina regularis, Montlivaltia sp. Turritella mordi, Nerinea magharensis, Nerinea mistanensis, Tylostoma magharensis,Tylostoma globosum, Pyrazus magharensis,Pyrazus sexangulatus,Pseudomesalia quadrilineata, Pseudomesalia deserti, Ampullina ervyna, Gervillaria alaeformis, Gervillaria sowerbyana,Gervillaria sp., Spharea corrugate, Ptychomya robinaldina, Trigonia undulatocostata, Cucullaea orintalis, Pterotrigonia scabra Valdedorsella akuschense, Zuercherella aff. zuercheri, Uhligella clansayensis, Phylloceras moreti, Teragonaites nautilodes, Teragonites aff. heterosulcatus, Teragonites sp., Discotectus sp. Hemiaster sp., Coenholectypus sp.

Table 2: Lower Cretaceous macro-fauna species that recorded from Gebel Mistan.