The Bentiaba (or Rio de São Nicolau or Saint Nicolas River) is a river in southern Angola. Its mouth is at the Atlantic Ocean near the commune of Bentiaba in Namibe Province.
The riverbank has produced a number of Cretaceous fossils including mosasaurs from Itombe Formation.New mosasaur material from the Maastrichtian of Angola, with notes on the phylogeny, distribution and palaeoecology of the genus Prognathodon, Anne S. Schulp, Michael J. Polcyn, Octávio Mateus, Louis L. Jacobs, Maria Luísa Morais & Tatiana da Silva Tavares
Bentiaba is also the name given to the Cretaceous bonebed.Strganac, C., Jacobs L., Polcyn M., Mateus O., Myers T., Araújo R., Fergunson K. M., Gonçalves A. O., Morais M. L., Schulp A. S., da Tavares T. S., & Salminen J. (2014). Geological Setting and Paleoecology of the Upper Cretaceous Bench 19 Marine Vertebrate Bonebed at Bentiaba, Angola. Netherlands Journal of Geosciences. 1-16.
See also List of rivers of Angola
References