Earliest Bilaterian Fossil Claimed
July 14, 2004
Microscopic etchings in rock alleged to be primitive bilaterian fossils have been reported by J.Y. Chen et al. in China. (Bilateria are organisms displaying symmetry along one axis.) The report, printed in the July 9 issue of Science,1 dates the fossils at 40-55 million years before the Cambrian. Erik Stokstad in the same issue2 calls […]
