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 ~ | |
| Type | Sedimentary |
| Lithology | |
| Primary | Sandstone, claystone, shale,limestone claystone |
| Location | |
| Region | Faiyum Governorate |
| Country | Egypt |
Paleobiota
editAfrotheres
edit| Genus | Species | Member | Locality | Material | Notes | Images |
|---|---|---|---|---|---|---|
| Protosiren | P. smithae |
Cetacea
edit| Genus | Species | Member | Locality | Material | Notes | Images |
|---|---|---|---|---|---|---|
| Basilosaurus | B. isis | |||||
| Dorudon | D. atrox | |||||
| Aegicetus | A. gehennae | |||||
| Masracetus | M. markgrafi | |||||
| Protocetidae | indeterminate |
Crocodylomorphs
edit| Genus | Species | Member | Locality | Material | Notes | Images |
|---|---|---|---|---|---|---|
| Paratomistoma | P. courtii |
Actinopterygians
edit| Genus | Species | Member | Locality | Material | Notes | Images |
|---|---|---|---|---|---|---|
| "Pycnodus" | "P". mokattamensis |
Chondrichthyes
edit| 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 |
References
edit- ^ "Zeuglodon Valley (Eocene to of Egypt)". PBDB.org.
- ^ Underwood, Charlie J.; Ward, David J.; King, Christopher; Antar, Sameh M.; Zalmout, Iyad S.; Gingerich, Philip D. (2011-01-01). "Shark and ray faunas in the Middle and Late Eocene of the Fayum Area, Egypt". Proceedings of the Geologists' Association. Environmental Change in sub-Saharan Africa. 122 (1): 47–66. doi:10.1016/j.pgeola.2010.09.004. ISSN 0016-7878.