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Between Tendaguru and Bahariya: On the Age of the Early Cretaceous Dinosaur Sites from the Continental Intercalaire and Other African Formations
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///The main Early Cretaceous vertebrate localities of Africa are listed and tentatively correlated.A Late Jurassic (Kimmeridgian Tithonian:Tendaguru, Tanzania) to earliest Cretaceous (Valanginian: Algoa Basin, South Africa) assemblage with stegosaurids, brachiosaurids and diplodocids is replaced by a pre-Aptian (Hauterivian Barremian?) assemblage with baryonychine spinosaurids, the pholidosaurid crocodile Sarcosuchus and large iguanodontids recorded from Niger (El Rhaz Formation), Cameroon (Koum Formation), and partially from Libya (Cabao Formation) and Tunisia (Douiret Formation) with the shark Priohybodus arambourgi.Aptian? to Early Albian assemblages still include iguanodontids but spinosaurine spinosaurids replace baryonychines. Early Cenomanian assemblages (Bahariya, Kem Kem) are characterized by the association of dinosaurs (Spinosaurus, Carcharodontosaurus), sharks (Onchopristis numidus) and crocodiles (libycosuchids, stomatosuchids). It is suggested that some supposedly Early Cretaceous formations from central Africa (Galula Formation of Tanzania, dinosaur beds of Malawi) are Late Cretaceous in age.


    


    

 

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