简介 北美众多的囊鼠科(geomyidae)和更格卢鼠科(heteromyidae)构成鼠形亚目的另一超科。它们的化石是北美第三纪中晚期地层的重要划分依据。
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囊鼠一种北美衣囊鼠科的穴居啮齿类动物，短尾，有皮毛呈线型的外颊囊。
Any of various short-tailed, burrowing rodents of the family Geomyidae of North America, having fur-lined external cheek pouches.
衣囊鼠科的穴居啮齿类动物，有大的外颊囊；产于美洲中部和北美洲西南部。
Any of various short-tailed, burrowing rodents of the family Geomyidae of North America, having fur-lined external cheek pouches.
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