Precambrian biota: protistan origin of trace fossils?

  • publication
  • 14-01-2009

Pawlowski J, Gooday AJ. Curr. Biol. 2009 Jan;19(1):R28-30. S0960-9822(08)01434-6. 10.1016/j.cub.2008.11.003.

Some Precambrian trace fossils have been presented as evidence for the early origin of bilaterians; the recent finding that large amoeboid protists leave macroscopic traces at the bottom of the deep ocean questions the metazoan nature of early trace fossils, stressing the importance of single-cell organisms in Precambrian biota.

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