Comment on "Bilaterian Burrows and Grazing Behavior at >585 Million Years Ago"
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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.
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An earlier appearance of bilaterian trails (585 Ma) has been suggested, but the age of the trace-fossil-bearing strata is highly contended, probably being Late Palaeozoic, so these structures have not been included in the database.
“An earlier appearance of bilaterian trails (585 Ma) has been recently suggested [26]. However, the age of the trace-fossil-bearing strata is highly contended, probably being Late Palaeozoic [27]. Therefore, the structures previously mentioned [21,23,26] have not been included in our database.”
From Decoupling of body-plan diversification and ecological structuring during the Ediacaran–Cambrian transition: evolutionary and geobiological feedbacks (2014) · cites this paper as [27]
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References 9 · Cited by 23
- Authors
- Gaucher, C., Poiré, D. G., Bossi, J., Bettucci, L. S., & Beri, Á.
- Affiliations
- Universidad de la República de Uruguay (UY)
- Consejo Nacional de Investigaciones Científicas y Técnicas (AR)
- Corresponding author
- Gaucher, Claudio
- Venue
- Science
- Published
- 2013-02-22
- Volume
- 339
- Issue
- 6122
- Pages
- 906-906
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2030138422
- Cited by
- 23
- References
- 9
- Citations by year
- 2026: 1 · 2024: 1 · 2022: 2 · 2020: 2 · 2018: 1 · 2017: 2 · 2016: 3 · 2015: 2 · 2014: 7 · 2013: 2
- Type
- journal article
- Language
- en
- Open access
- green
- sedici.unlp.edu.ar
- Licence
- other-oa
- Locations
- Science (publishedVersion)
- Americanae (AECID Library) (publishedVersion, other-oa)
- PubMed (publishedVersion)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, cc-by-nc-sa)
- Americanae (AECID Library) (submittedVersion, cc-by-nc-sa)
- Funders
- Universidad de la República Uruguay
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Evolutionary Biology
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
- Keywords
- Ediacaran, Ediacaran biota, grazing behavior, Precambrian paleontology
- MeSH terms
- Animals, Biological Evolution, Fossils
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