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Ceratotherium mauritanicum : ウィキペディア英語版 | Ceratotherium mauritanicum
''Ceratotherium mauritanicum'' is a species of fossil African rhinoceros found in the Late Pliocene to earliest Holocene of Morocco, Tunisia, and Algeria. Slightly older fossils from the Pliocene of eastern Africa were also proposed to belong to this species, but the most recent study consider them to belong to a somewhat more primitive species, ''Ceratotherium efficax''. == Evolution ==
The phylogenetic position of ''C. mauritanicum'' is somewhat disputed. One model see it as to be located in a direct line of ancestry between the primitive ''Ceratotherium neumayri'' and the living white rhinoceros (''Ceratotherium simum'').〔 Alternatively it was proposed to be the descendant of ''Ceratotherium efficax'' and an extinct sister taxon to ''C. simum''. It retained primitive characters contemporaneously to the more progressive evolution of the genus ''Ceratotherium'' in eastern and southern Africa.〔
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