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Aïn el Guettar - Chenini, Tunisia

Formation	Aïn el Guettar
Member	Chenini
Age:	112 - 109 Ma Early/Lower Cretaceous
Interval	Early Albian
Lithology	carbonate
Number of Collections	3
Number of Occurrences	28

Recorded Sample Locations

Location	Region	Stratigraphic Name
Ouaja	Medenine, Tunisia	Aïn el Guettar - Chenini
Bir Miteur	Medenine, Tunisia	Aïn el Guettar - Chenini
Nekrif	Tataouine, Tunisia	Aïn el Guettar - Chenini
Bateun el Hmaima	Tataouine, Tunisia	Aïn el Guettar - Chenini

Associated Units

Stratigraphic Name	Age	Lithology	Occurrence Records
Douiret	133 - 125 Ma Early/Lower Cretaceous		2
Merbah el Asfer - Douiret	125 - 113 Ma Early/Lower Cretaceous	carbonate, claystone	14

Recorded Fossils

Accepted Name	Type	Hierarchy	Age
Caturus sp. genus	6	Animalia : Chordata : Actinopterygii : Amiiformes : Caturidae : *Caturus*	112.03 - 109 Ma Early/Lower Cretaceous
Lepidotes sp. genus	6	Animalia : Chordata : Actinopterygii : Lepisosteiformes : *Lepidotes*	112.03 - 109 Ma Early/Lower Cretaceous
Pycnodontiformes order	4	Animalia : Chordata : Actinopteri : Pycnodontiformes	112.03 - 109 Ma Early/Lower Cretaceous
Elasmobranchii class	3	Animalia : Chordata : Elasmobranchii	122.46 - 109 Ma Early/Lower Cretaceous
Cretodus sp. genus	6	Animalia : Chordata : Elasmobranchii : Lamniformes : Cretoxyrhinidae : *Cretodus*	112.03 - 109 Ma Early/Lower Cretaceous
Protolamna sp. genus	6	Animalia : Chordata : Chondrichthyes : Lamniformes : Eoptolamnidae : *Protolamna*	112.03 - 109 Ma Early/Lower Cretaceous
Coelacanthimorpha class	3	Animalia : Chordata : Coelacanthimorpha	122.46 - 109 Ma Early/Lower Cretaceous
Iguanodontidae family	5	Animalia : Chordata : Ornithischia : Iguanodontidae	122.46 - 109 Ma Early/Lower Cretaceous
Dipnoi subclass	3.3	Animalia : Chordata : Osteichthyes : Dipnoi	122.46 - 109 Ma Early/Lower Cretaceous
Neoceratodus africanus species	7	Animalia : Chordata : Osteichthyes : Ceratodontiformes : Neoceratodontidae : Neoceratodus : *Neoceratodus africanus*	112.03 - 109 Ma Early/Lower Cretaceous
Crocodylia order	4	Animalia : Chordata : Reptilia : Crocodylia	112.03 - 109 Ma Early/Lower Cretaceous
Dinosauria order	4	Animalia : Chordata : Reptilia : Dinosauria	112.03 - 109 Ma Early/Lower Cretaceous
Ornithocheiridae family	5	Animalia : Chordata : Reptilia : Pterosauria : Ornithocheiridae	122.46 - 109 Ma Early/Lower Cretaceous
Plesiosauria unranked clade	99	Animalia : Chordata : Reptilia : Sauropterygia : Plesiosauria	122.46 - 109 Ma Early/Lower Cretaceous
Testudinata unranked clade	99	Animalia : Chordata : Reptilia : Protochelys : Testudinata	122.46 - 109 Ma Early/Lower Cretaceous
Carcharodontosaurus saharicus species	7	Animalia : Chordata : Reptilia : Dinosauria : Carcharodontosauridae : Carcharodontosaurus : *Carcharodontosaurus saharicus*	112.03 - 109 Ma Early/Lower Cretaceous
Sauropoda unranked clade	99	Animalia : Chordata : Saurischia : Sauropoda	112.03 - 109 Ma Early/Lower Cretaceous
Theropoda unranked clade	99	Animalia : Chordata : Saurischia : Theropoda	122.46 - 109 Ma Early/Lower Cretaceous
Spinosauridae family	5	Animalia : Chordata : Saurischia : Spinosauridae	122.46 - 109 Ma Early/Lower Cretaceous
Spinosaurus sp. genus	6	Animalia : Chordata : Reptilia : Dinosauria : Spinosauridae : *Spinosaurus*	112.03 - 109 Ma Early/Lower Cretaceous
Spinosaurus aegyptiacus species	7	Animalia : Chordata : Reptilia : Dinosauria : Spinosauridae : Spinosaurus : *Spinosaurus aegyptiacus*	112.03 - 109 Ma Early/Lower Cretaceous

References

Bouaziz S., Buffetaut E., et al (1988) Nouvelles découvertes de vertébrés fossiles dans l'Albien du sud tunisien [New discoveries of fossil vertebrates in the Albian of southern Tunisia], Bulletin de la Société Géologique de France, 8e série 4 2, 335-339

Le Loeuff J., Buffetaut E., et al (2000) Mesozoic continental vertebrates of Tunisia, 5th European Workshop on Vertebrate Palaeontology, Staatliches Museum für Naturkunde, Geowissenschaften Abteilung. Program. Abstracts. Excursion Guides, 45

Buffetaut E., Ouaja M. (2002) A new specimen of Spinosaurus (Dinosauria, Theropoda) from the Lower Cretaceous of Tunisia, with remarks on the evolutionary history of the Spinosauridae, Bulletin de la Société Géologique de France 173 5, 412-421

Amiot R., Wang X., et al (2010) Oxygen and carbon isotope compositions of middle Cretaceous vertebrates from North Africa and Brazil: Ecological and environmental significance, Palaeogeography, Palaeoclimatology, Palaeoecology 297 2, 439-451 doi:10.1016/j.palaeo.2010.08.027

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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