We thank Nick Barton and Daniel Weissman for helpful ditemaiosu and pointing us to °levant literature. References I. :Mimics' AC. Grotainger JP, Knoll Ali. Burch 1W. Anderson MS, et al. 1009) Controls on detelopmem and diversity of early archran simmatolies. Pmc Nail Arad Sri USA 106: 95419 9555. 2.