The Dakhla Formation , also called the Dakhla Shale ,[5] is a Maastrichtian -Danian geologic formation in the Western Desert , Egypt .[4] [6] Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus .[7]
This article
relies largely or entirely on a single source .
(December 2009 )
Quick Facts Type, Sub-units ...
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Notes Uncertain or tentative taxa are in small text ; crossed out taxa are discredited.
Reptiles
Dinosaurs
More information Dinosaurs reported from the Dakhla Formation, Genus ...
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Turtles
More information Turtles reported from the Dakhla Formation, Genus ...
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Mosasaurs
More information Mosasaurs reported from the Dakhla Formation, Genus ...
Mosasaurs reported from the Dakhla Formation
Genus Species Presence
Material Notes Images
Globidens
G. phosphaticus
Beris Oyster Mudstone Member[2]
A single tooth crown (CUNV0011).[2]
A mosasaurine .
Halisaurus
H. hebae
Beris Oyster Mudstone Member[11]
A halisaurine
Mosasaurinae
Indeterminate
Beris Oyster Mudstone Member[2]
A fragmentary small dentary with a single tooth (CUNV0012).[2]
A mosasaurine .
Prognathodon
P . sp.
"Lower part"
Two tooth crowns, three cervical, nine dorsal, three caudal vertebrae, and ribs, found in association (NVP025).[5]
Most similar to P. overtoni , possibly a member of that species
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Fish
More information Fish reported from the Dakhla Formation, Genus ...
Fish reported from the Dakhla Formation
Genus Species Presence
Material Notes Images
Anomoeodus
A. aegypticus
Lower Beris Member[12]
A single specimen (NVP023).[12]
A pycnodont .
Diastemapycnodus
D. tavernensis
Beris Member[13]
"A single vomer with partial dentition".[13]
A pycnodont .
Onchopristis
O. sp.
Beris Member[14]
Four fragmentary rostral teeth and an exceptionally large, 1.46 metres (4.8 ft) long rostrum.[14]
A sawskate .
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Invertebrates
Bivalves
More information Bivalves reported from the Dakhla Formation, Genus ...
Bivalves reported from the Dakhla Formation
Genus Species Presence
Material Notes Images
Apectoichnus
A. longissimus
Ammonite Hill Member[1]
Borings in Nypa fruits.[1]
Bivalve borings.
Teredolites
T. clavatus
Ammonite Hill Member[1]
32 moderately preserved borings (TBT02-33) & two badly preserved specimens (TBT44-45) in Nypa fruits.[1]
Bivalve borings.
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Plants
More information Plants reported from the Dakhla Formation, Genus ...
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Tantawy, A. A.; Keller, G.; Adatte, T.; Stinnesbeck, W.; Kassab, A.; Schulte, P. (2001-12-01). "Maastrichtian to Paleocene depositional environment of the Dakhla Formation, Western Desert, Egypt: sedimentology, mineralogy, and integrated micro- and macrofossil biostratigraphies" . Cretaceous Research . 22 (6): 795–827. Bibcode :2001CrRes..22..795T . doi :10.1006/cres.2001.0291 . ISSN 0195-6671 .
Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517–607.
Shaker, A. A.; Longrich, N. R.; Strougo, A.; Asan, A.; Bardet, N.; Mousa, M. K.; Tantawy, A. A.; Abu El-Kheir, G. A. (2023). "A new species of Halisaurus (Mosasauridae: Halisaurinae) from the lower Maastrichtian (Upper Cretaceous) of the Western Desert, Egypt". Cretaceous Research . 154 . 105719. doi :10.1016/j.cretres.2023.105719 .
Capasso, L.; Abdel Aziz, S.; Tantawy, A. A.; Mousa, M. K.; Wahba, D. G. A.; Abu El-Kheir, G. A. (2024). "The first described Onchopristis Stromer, 1917, (Elasmobranchii: †Onchopristidae) from the Marine Maastrichtian of Dakhla Formation, Western Desert, Egypt". Journal of African Earth Sciences . 105415. doi :10.1016/j.jafrearsci.2024.105415 .
Bibliography
Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2 .