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Mammuthus africanavus
The African mammoth, ''Mammuthus africanavus'' (literally, "African ancestor mammoth"), is among the oldest of mammoth species, having first appeared around 3 million years ago during the late Pliocene. Its fossils have been found in Chad, Libya, Morocco and Tunisia. It was relatively small and is seen as the direct ancestor of ''M. meriodionalis'', although its tusk diverged more widely from its skull than later species of mammoth, which might indicate that it was an evolutionary dead end.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
■ウィキペディアで「Mammuthus africanavus」の詳細全文を読む
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