- pantothere
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/pan"teuh thear'/, n.any animal of the extinct order Pantotheria that lived during the late Mesozoic Era, believed to be the ancestor of the marsupial and placental mammals.[ < NL Pantotheria name of order, equiv. to panto- PANTO- + -theria, pl. of -therium -THERE]
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Universalium. 2010.