Gehannam Formation

The Gehannam Formation (or Gar Gehannam) is a formation in Egypt which dates to the Eocene.^[1] It is similar in age to the Birket Qarun Formation.

Gehannam Formation
Stratigraphic range: Eocene ~47.8–33.9 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Type	Sedimentary
Lithology
Primary	Sandstone, claystone, shale,limestone claystone
Location
Region	Faiyum Governorate
Country	Egypt

Paleobiota

Mammals

Afrotheres

Afrotheres

Genus	Species	Member	Locality	Material	Notes	Images
Protosiren	P. smithae

Cetacea

Cetacea

Genus	Species	Member	Locality	Material	Notes	Images
Basilosaurus	B. isis
Dorudon	D. atrox
Aegicetus	A. gehennae
Masracetus	M. markgrafi
Protocetidae	indeterminate

Reptiles

Crocodylomorphs

Crocodylomorphs

Genus	Species	Member	Locality	Material	Notes	Images
Paratomistoma	P. courtii

Fish

Actinopterygians

Actinopterygians

Genus	Species	Member	Locality	Material	Notes	Images
"Pycnodus"	"P". mokattamensis

Chondrichthyes

Selachimorpha

Genus	Species	Member	Locality	Material	Notes	Images
Rhizoprionodon	R. sp.
Macrorhizodus	M. praecursor
Negaprion	N. frequens, N. amekiensis
Nebrius	N. sp.
Alopias	A. sp.
Hemipristis	H. sp.
Triakidae
Otodus[2]	O. sokolovi
Hexanchus	H. sp.
Squatina	S. sp.
Leptocharias	L. sp.
Carcharias	C. sp.
Physogaleus	P. sp.
Abdounia	A. sp.
Crassescyliorhinus	C. sp.
Galeocerdo	G. sp.
Brachycarcharias	B. cf. twiggsensis