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Hesperolemur
''Hesperolemur'' is a genus of adapiform primate that lived in the middle Eocene (49-37 million years ago) of southern California. It is an immigrant taxa which appears to be most closely related to the earlier European forms of ''Cantius''. It was approximately in weight and was the last surviving notharctine species, probably because of its position in the refugia that existed in southern California during the climate deterioration at the end of the middle Eocene. There are no later taxa that appear to have derived from ''Hesperolemur''.
The weak but present development of mesostyles and pseudohypocone link ''Hesperolemur'' to ''Cantius''. Morphologically, ''Hesperolemur'' is distinct from other notharctine taxa in having a partially fused ectotympanic anulus in the auditory bulla, no stapedial artery, and no lower molar paraconids. As the specimen used to make these analyses was badly damaged, others have argued against the existence of such differences and move ''Hesperolemur'' to a species of ''Cantius'', ''Cantius actius.''
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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