The timing of early animal evolution remains poorly resolved, yet remains critical for understanding nervous system evolution. Methods for estimating divergence times from sequence data have improved considerably, providing a more refined understanding of key divergences. The best molecular estimates point to the origin of metazoans and bilaterians tens to hundreds of millions of years earlier than their first appearances in the fossil record.
[PMC free article] [PubMed] [Cross Ref]; Dohrmann M, Wörheide G. Dating early animal evolution using phylogenomic data. Scientific Reports. The timing of early animal evolution remains poorly resolved, yet remains critical for .. the added rigour that is now possible in dating divergence times with sequence data. .. As with phylogenetic analyses of metazoan history, we can expect consensus to . (doi/science) [PubMed]. Despite this, routine application of radiometric dating to Earth history . that the NOE began as early as Ma, whereas diverse geochemical data indicate of early animal evolution began with ID-TIMS dating of zircons from a .. some fossils of known phylogenetic position can be dated by accurate and.