Bilaterian Burrows and Grazing Behavior at >585 Million Years Ago

@article{Pecoits2012BilaterianBA,
  title={Bilaterian Burrows and Grazing Behavior at >585 Million Years Ago},
  author={Ernesto Pecoits and Kurt O. Konhauser and Natalie R. Aubet and Larry M. Heaman and Gerardo Veroslavsky and Richard A. Stern and Murray Gingras},
  journal={Science},
  year={2012},
  volume={336},
  pages={1693 - 1696}
}
Early Burrowers Direct fossil evidence of animals from Ediacaran period—the time in Earth's history just before extensive animal diversification in the Cambrian—is scant. However, the remains of animal activity in sediment, which remain intact through geologic time can provide clues about animal behavior and evolution. Pecoits et al. (p. 1693; see the Perspective by Droser and Gehling) found a suite of fossil animal burrows in sedimentary rocks in Uruguay. Radiometric dating places the age of… Expand
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