Pinnipeds (Pinnipedia) are a group of semi-aquatic [[marine mammals]] that include [[sea lion]]s, [[fur seal]]s, [[true seal]]s and [[the walrus]]. Members of this group are also known as the fin-footed mammals and are characterized by clumsiness on land but great agility in the water.
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{{Taxonomy
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|name=Pinnipedia
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|image=
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|caption=
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|domain=Eukaryota
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|kingdom=Animalia
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|subkingdom=Bilateria
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|branch=Deuterostomia
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|superphylum=
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|phylum=Chordata
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|subphylum=Vertebrata
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|infraphylum=Gnathostomata
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|superclass=Tetrapoda
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|class=Mammalia
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|subclass=Theriiformes
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|infraclass=Holotheria
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|superorder=Preptotheria
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|order=Carnivora
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|suborder=Pinnipedia
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|infraorder=
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|superfamily=
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|families=Odobenidae<br/>Otariidae<br/>Phocidae
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}}
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'''Pinnipedia''' refers to a suborder of the [[Mammal|mammalian]] order [[Carnivora]], comprising three families and thirty-four living species of semi-aquatic [[marine mammals]], which include [[sea lion]]s, [[fur seal]]s, [[true seal]]s and [[the walrus]]. Members of this group are also known as the fin-footed mammals and are characterized by clumsiness on land but great agility in the water.