A semi-aquatic Arctic mammalian carnivore from the Miocene epoch and origin of Pinnipedia

@article{Rybczynski2009ASA,
  title={A semi-aquatic Arctic mammalian carnivore from the Miocene epoch and origin of Pinnipedia},
  author={Natalia Rybczynski and Mary R. Dawson and Richard H. Tedford},
  journal={Nature},
  year={2009},
  volume={458},
  pages={1021-1024}
}
Modern pinnipeds (seals, sea lions and the walrus) are semi-aquatic, generally marine carnivores the limbs of which have been modified into flippers. Recent phylogenetic studies using morphological and molecular evidence support pinniped monophyly, and suggest a sister relationship with ursoids (for example bears) or musteloids (the clade that includes skunks, badgers, weasels and otters). Although the position of pinnipeds within modern carnivores appears moderately well resolved, fossil… 
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