Adaffa Formation
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| Adaffa Formation | |
|---|---|
| Stratigraphic range: Campanian ~ | |
| Type | Geological formation |
| Unit of | Suqah Group |
| Underlies | Unconformity with Lower Miocene Al Wajh Formation |
| Overlies | Proterozoic granite basement |
| Thickness | Up to 200 m (660 ft) |
| Lithology | |
| Primary | Sandstone, siltstone, marl |
| Other | Conglomerate |
| Location | |
| Location | Midyan Peninsula, Tabuk Region |
| Coordinates | Lua error in Module:Coordinates at line 489: attempt to index field 'wikibase' (a nil value). |
| Approximate paleocoordinates | Lua error: callParserFunction: function "#coordinates" was not found. |
| Region | Arabian Peninsula |
| Country | Saudi Arabia |
Adaffa Formation (Saudi Arabia) | |
The Adaffa Formation is a geological formation in Saudi Arabia, and the lowermost unit of the Suqah Group. It dates back to the Campanian of the Late Cretaceous. The lithology consists of sandstone, siltstone and marl, with a basal granitic conglomerate with phosphatic nodules. Also present are ferricrete horizons. It was deposited in marginal marine conditions close to land. Fish,[1] marine reptile[2] and dinosaur[3] remains have been recovered from the formation.
Vertebrate paleofauna
[edit | edit source]Fish
[edit | edit source]| Fish of the Adaffa Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
| Ceratodus | Indeterminate | Toothplates | Lungfish | |||
| cf. Enchodus | Indeterminate | Teeth | ||||
| cf. Protosphyraena | Indeterminate | Teeth | Pachycormid | |||
| ?Anacoracidae | Indeterminate | Vertebrae | ||||
| Lepisosteidae | Indeterminate | Vertebral centra | ||||
| Pycnodontiformes | Indeterminate | Teeth | ||||
Crocodyliformes
[edit | edit source]| Crocodyliformes of the Adaffa Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
| Dyrosauridae | Indeterminate | Two vertebrae | ||||
| Crocodyliformes | Indeterminate | Cranial fragment | ||||
Plesiosaurians
[edit | edit source]| Plesiosaurians of the Adaffa Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
| Elasmosauridae | Indeterminate | Rostral portion of a skull | ||||
Squamates
[edit | edit source]| Squamates of the Adaffa Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
| Prognathodon | Indeterminate | Teeth | Mosasaur | |||
| cf. Pachyvaranus | Indeterminate | Vertebrae | Aquatic varanoid | |||
| Mosasauridae | Pygal vertebra | |||||
| Plioplatecarpinae | Indeterminate | Dorsal vertebra | ||||
Turtles
[edit | edit source]| Turtles of the Adaffa Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
| Bothremydidae | Indeterminate | Shell fragments and a femur | ||||
Non-avian Dinosaurs
[edit | edit source]| Dinosaurs of the Adaffa Formation | ||||||
|---|---|---|---|---|---|---|
| Genus | Species | Location | Stratigraphic position | Abundance | Notes | Images |
| Abelisauridae | Indeterminate | Two teeth | ||||
| Titanosauria | Indeterminate | Seven caudal vertebrae, seemingly from the same individual | ||||
References
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- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
- ^ Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).