Pu, J.P.; Bowring, S.A.; Ramezani, J.; Myrow, P.; Raub, T.D.; Landing, E.; Mills, A.; Hodgin, E.; Macdonald, F.A.
geochronology · range · methods
CA–ID–TIMS U–Pb zircon ages directly bracket the Gaskiers glaciation and the stratigraphically younger Avalon assemblages discussed in the paper.
CA–ID–TIMS U–Pb ages bracket the Gaskiers glaciation, and Avalon fossils appear in younger strata by about 571 Ma; this directly dates a regional assemblage, not the origin of animals or a global Ediacaran first appearance.
claim:event:ediacaran-biotaThe 635–0 Ma Invertebrata route is an evidence anthology, not a clade range: CA–ID–TIMS dates place Avalon animal assemblages by about 571 Ma, while represented living groups continue to the present; 635 Ma remains an Ediacaran display ceiling rather than an invertebrate FAD.
claim:taxon:invertebrata:root-range