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where two species without a direct phylogenetic relationship end up having the same shape or structure
Northwest Africa 12870 Basic information Name: Northwest Africa 12870
In: Proceedings of the Second Mosasaur Meeting
Multiple articulated stalks can be seen
Subtaxa: Sclerorhynchus atavus
19002 - Top Rare Stephanodus Partial Dentary Late Cretaceous Fish Coloborhynchus where two species without aRare species belonging to the Trigonodontoidae family. This type of specimens in the fossil record of the Upper Cretaceous phosphates of the Ouled Abdoun Basin are not common. Stephanodus sp, Zittel 1883 (ray finned fish) Osteichthyes Tetraodontiformes Trigonodontoidae Parent taxon: Trigonodontoidae according to G. R. Case and D. R. Schwimmer 1988 See also Kumar and Loyal 1987 Subtaxa: Stephanodus lybicus Ecology: nektonic carnivore Environments: