title: Comment on "Bilaterian burrows and grazing behavior at >585 million years ago".
abstract: Pecoits et al. (Reports, 29 June 2012, p. 1693) describe bilaterian trace fossils and assign them an Ediacaran age based on the age of a granite interpreted as intrusive. We argue that the granite is not intrusive but in fact represents the basement of the sedimentary succession. Moreover, we show that identical trace fossils occur in nearby Carboniferous-Permian glacigenic rocks.
authors: Departamento de Geología, Facultad de Ciencias, Universidad de la República Iguá 4225, 11400 Montevideo, Uruguay. gaucher@chasque.net
authors: Claudio
authors: C
authors: Gaucher
authors: Daniel G
authors: DG
authors: Poiré
authors: Jorge
authors: J
authors: Bossi
authors: Leda Sánchez
authors: LS
authors: Bettucci
authors: Ángeles
authors: Á
authors: Beri
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005580:Fossils