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後獣下綱
1. Metatheria (mammalian infraclass)
2. MetatheriaMetatheria is a grouping within the animal class Mammalia. First proposed by Thomas Henry Huxley in 1880, it is slightly wider than the earlier taxon Marsupialia,; it contains the extant mammals with abdominal pouches as well as all animals more closely related to them than to placental animals like rodents and humans. Some female metatherians, like the shrew opossum, lack the pouch. The earliest known representative, Sinodelphys, is from the Lower Cretaceous of China.
Read “Metatheria” on English Wikipedia
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Read “Metatheria” on DBpedia
Read “Metatheria” on English Wikipedia
Read “後獣下綱” on Japanese Wikipedia
Read “Metatheria” on DBpedia
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