Quseir Formation Explained

Quseir Formation
Period:Campanian
Age:Campanian
~
Type:Geological formation
Prilithology:Shale
Otherlithology:Sandstone, siltstone, phosphorite
Subunits:Mut & El Hindaw Members
Underlies:Duwi Formation
Overlies:Unconformity with Taref Formation
Thickness:at least 250m (820feet)
Location:Al Wadi al Jadid, New Valley
Coordinates:25.6°N 29.1°W
Paleocoordinates:9.3°N 24.9°W
Region:Kharga Oasis
Country: Egypt

The Quseir Formation is a geological formation in the vicinity of the Kharga Oasis in Egypt.[1] It is Campanian In age.[2] The lithology largely consists of soft shale with hard bands of sandstone, siltstone and phosphorite.[3] The environment of deposition was nearshore to freshwater fluvio-lacustrine characterized by moist and aquatic habitats with a tropical warm-humid climate. It is conformably overlain by the marine late Campanian-Maastrichtian Duwi Formation, and unconformably overlies the Turonian Taref Formation. The sauropod dinosaurs Mansourasaurus and Igai are known from the formation,[4] [5] as well as the proximal fibula of an indeterminate theropod[6] and possible remains tentively assigned to spinosaurus.[7] Additionally the lungfish genera Lavocatodus and Protopterus,[8] the crocodyliform Wahasuchus[9] and the bothremydid turtle Khargachelys are also known.[10]

Fossil content

Dinosaurs

Sauropods

Sauropods of the Quseir Formation
Genus Species Location Material Notes Images
Mansourasaurus[11] M. shahinaea fragment of the skull roof, a part of the lower braincase, the dentaries of the lower jaws, three neck vertebrae, two back vertebrae, eight ribs, the right scapula, the right coracoid, both humeri, a radius, a third metacarpal, three metatarsals, and parts of osteoderms.A lithostrotian sauropod
Igai[12] I. semkhuA saltosaurid titanosaur

Theropods

Theropods of the Quseir formation
Genus Species Location Material Notes Images
cf. Spinosaurus[13] cf. S. sp.
Theropoda Indet.IndeterminateA proximal fibula

Fish

Boney Fish

Fish of the Quseir Formation
Genus Species Location Material Notes Images
Lavocatodus
ProtopterusA modern Protopterus species

Cartilaginous Fish

Turtles

Notes and References

  1. https://paleobiodb.org/classic/displayStrata?geological_group=&formation=Quseir&group_formation_member=Quseir Quseir Formation
  2. Mahmoud. Magdy S.. April 2003. Palynology and palaeoenvironment of the Quseir Formation (Campanian) from central Egypt. Journal of African Earth Sciences. 36. 3. 135–148. 10.1016/s0899-5362(03)00047-2. 2003JAfES..36..135M . 1464-343X.
  3. Sallam. Hesham M.. O'Connor. Patrick M.. Kora. Mahmoud. Sertich. Joseph J.W.. Seiffert. Erik R.. Faris. Mahmoud. Ouda. Khaled. El-Dawoudi. Iman. Saber. Sara. May 2016. Vertebrate paleontological exploration of the Upper Cretaceous succession in the Dakhla and Kharga Oases, Western Desert, Egypt. Journal of African Earth Sciences. 117. 223–234. 10.1016/j.jafrearsci.2016.01.022. 2016JAfES.117..223S . 1464-343X. free.
  4. Sallam. Hesham M.. Gorscak. Eric. O’Connor. Patrick M.. El-Dawoudi. Iman A.. El-Sayed. Sanaa. Saber. Sara. Kora. Mahmoud A.. Sertich. Joseph J. W.. Seiffert. Erik R.. 2018-01-29. New Egyptian sauropod reveals Late Cretaceous dinosaur dispersal between Europe and Africa. Nature Ecology & Evolution. 2. 3. 445–451. 10.1038/s41559-017-0455-5. 29379183. 2018NatEE...2..445S . 3375335 . 2397-334X.
  5. Gorscak . Eric . Lamanna . Matthew C. . Schwarz . Daniela . Díaz . Verónica díez . Salem . Belal S. . Sallam . Hesham M. . Wiechmann . Marc Filip . 2023-07-20 . A new titanosaurian (Dinosauria: Sauropoda) from the Upper Cretaceous (Campanian) Quseir Formation of the Kharga Oasis, Egypt . Journal of Vertebrate Paleontology . 42 . 6 . en . 10.1080/02724634.2023.2199810 . 0272-4634. free .
  6. Salem . Belal S. . O'Connor . Patrick M. . Gorscak . Eric . El-Sayed . Sanaa . Sertich . Joseph J.W. . Seiffert . Erik . Sallam . Hesham M. . 2021-07-01 . Dinosaur remains from the Upper Cretaceous (Campanian) of the Western Desert, Egypt . Cretaceous Research . en . 123 . 104783 . 2021CrRes.12304783S . 10.1016/j.cretres.2021.104783 . 0195-6671 . 233900405 . free.
  7. Churcher . C. S. . De iuliis . G. . 2001 . A new species of Protopterus and a revision of Ceratodus humei (Dipnoi: Ceratodontiformes) from the Late Cretaceous Mut Formation of eastern Dakhleh Oasis, Western Desert of Egypt . Palaeontology . en . 44 . 2 . 305–323 . 10.1111/1475-4983.00181 . 2001Palgy..44..305C . 0031-0239.
  8. Claeson. Kerin M. Sallam. Hesham M. O'Connor. Patrick M.. Sertich. Joseph J. W.. 2014. A revision of the Upper Cretaceous lepidosirenid lungfishes from the Quseir Formation, Western Desert, central Egypt. Journal of Vertebrate Paleontology. 34. 4. 760–766. 10.1080/02724634.2014.838574. 2014JVPal..34..760C . 17120150 .
  9. Saber. Sara. Sertich. Joseph J.W.. Sallam. Hesham M.. Ouda. Khaled A.. O'Connor. Patrick M.. Seiffert. Erik R.. October 2018. An enigmatic crocodyliform from the Upper Cretaceous Quseir Formation, central Egypt. Cretaceous Research. 90. 174–184. 10.1016/j.cretres.2018.04.004. 2018CrRes..90..174S . 0195-6671. free.
  10. AbdelGawad . Mohamed . Pérez-García . Adán . Hirayama . Ren . Mohesn . Sara . Tantawy . Abdel-Aziz . Abu El-Kheir . Gebely . February 2023 . The First Side-Necked Turtle (Pleurodira, Bothremydidae) from the Campanian (Late Cretaceous) of Egypt . Diversity . en . 15 . 2 . 284 . 10.3390/d15020284 . 1424-2818 . free .
  11. Sallam . Hesham M. . Gorscak . Eric . O’Connor . Patrick M. . El-Dawoudi . Iman A. . El-Sayed . Sanaa . Saber . Sara . Kora . Mahmoud A. . Sertich . Joseph J. W. . Seiffert . Erik R. . Lamanna . Matthew C. . 2018-01-29 . New Egyptian sauropod reveals Late Cretaceous dinosaur dispersal between Europe and Africa . Nature Ecology & Evolution . en . 2 . 3 . 445–451 . 10.1038/s41559-017-0455-5 . 29379183 . 2018NatEE...2..445S . 2397-334X.
  12. Gorscak . Eric . Lamanna . Matthew C. . Schwarz . Daniela . Díaz . Verónica Díez . Salem . Belal S. . Sallam . Hesham M. . Wiechmann . Marc Filip . 2022-12-14 . A new titanosaurian (Dinosauria: Sauropoda) from the Upper Cretaceous (Campanian) Quseir Formation of the Kharga Oasis, Egypt . Journal of Vertebrate Paleontology . en . 42 . 6 . 10.1080/02724634.2023.2199810 . 0272-4634. free .
  13. Churcher . C. S. . De iuliis . G. . 2001 . A new species of Protopterus and a revision of Ceratodus humei (Dipnoi: Ceratodontiformes) from the Late Cretaceous Mut Formation of eastern Dakhleh Oasis, Western Desert of Egypt . Palaeontology . en . 44 . 2 . 305–323 . 10.1111/1475-4983.00181 . 2001Palgy..44..305C . 0031-0239.
  14. Saber . Sara . Sertich . Joseph J.W. . Sallam . Hesham M. . Ouda . Khaled A. . O'Connor . Patrick M. . Seiffert . Erik R. . 2018 . An enigmatic crocodyliform from the Upper Cretaceous Quseir Formation, central Egypt . Cretaceous Research . en . 90 . 174–184 . 10.1016/j.cretres.2018.04.004. 2018CrRes..90..174S .

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