The Gehannam Formation (or Gar Gehannam) is a formation in Egypt which dates to the Eocene. It is similar in age to the Birket Qarun Formation.

Paleobiota

Mammals Afrotheres +AfrotheresGenusSpeciesMemberLocalityMaterialNotesImagesProtosirenP. smithae

Cetacea +CetaceaGenusSpeciesMemberLocalityMaterialNotesImagesBasilosaurusB. isisDorudonD. atroxAegicetusA. gehennaeMasracetusM. markgrafiProtocetidaeindeterminate

Reptiles Crocodylomorphs +CrocodylomorphsGenusSpeciesMemberLocalityMaterialNotesImagesParatomistomaP. courtii

Fish

Actinopterygians +ActinopterygiansGenusSpeciesMemberLocalityMaterialNotesImages"Pycnodus""P". mokattamensis

Chondrichthyes +SelachimorphaGenusSpeciesMemberLocalityMaterialNotesImagesRhizoprionodonR. sp.MacrorhizodusM. praecursorNegaprionN. frequens, N. amekiensisNebriusN. sp.AlopiasA. sp.HemipristisH. sp.TriakidaeOtodusO. sokoloviHexanchusH. sp.SquatinaS. sp.LeptochariasL. sp.CarchariasC. sp.PhysogaleusP. sp.AbdouniaA. sp.CrassescyliorhinusC. sp.GaleocerdoG. sp.BrachycarchariasB. cf. twiggsensis

References