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The Cambrian Fossil Record and the Origin of the Phyla
Abstract
Whilst the "Cambrian Explosion" continues to attract much attention from a wide range of earth and life scientists, the detailed patterns exhibited by the terminal Proterozoic-Early Cambrian biotas remain unclear, for reasons of systematics, biostratigraphy and biogeography. In particular, recent changes in absolute dating of the Cambrian have refined the period of time that the fossil record might be of most help in revealing the dynamics of the undoubted radiation taking place at this time. The famous exceptionally preserved faunas seem to be rather close temporally, and as yet reveal little about the earliest and critical period of evolution, deep in the Cambrian. Nevertheless, the most parsimonious interpretation of the Cambrian fossil record is that it represents a broadly accurate temporal picture of the origins of the bilaterian phyla.
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“The first appearances of these groups are clustered geochronologically by higher-rank phylogeny (Budd, 2003; Landing & Westrop, 2004; Li et al . 2007).”
From Chronology of early Cambrian biomineralization (2012) · cites this paper as Budd, 2003
In the citing paper
“Budd (2003) and Budd & Jensen (2000, 2003) argued that this clustering reflects the true sequence of divergence of these high-ranking groups and implies rather late origins, probably near the Precambrian-Cambrian boundary, followed by their rapid evolutionary radiation in the early Cambrian.”
From Chronology of early Cambrian biomineralization (2012) · cites this paper as Budd (2003)
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Metadata
- Authors
- Budd, G. E.
- Affiliations
- Uppsala University (SE)
- Corresponding author
- Budd, G. E.
- ORCID
- Budd, G. E.
- Venue
- Integrative and Comparative Biology
- Publisher
- Oxford University Press (OUP)
- Published
- 2003-02-01
- Volume
- 43
- Issue
- 1
- Pages
- 157-165
- ISSN
- 1540-7063 (ISSN-L)
- 1557-7023
- OpenAlex
- W2119179804
- Cited by
- 102
- References
- 64
- Citations by year
- 2025: 3 · 2023: 4 · 2022: 6 · 2021: 2 · 2020: 4 · 2019: 5 · 2018: 6 · 2017: 1 · 2016: 1 · 2015: 2 · 2014: 4 · 2013: 8 · 2012: 6
- FWCI
- 2.92
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Integrative and Comparative Biology (publishedVersion)
- PubMed (publishedVersion)
- BioOne Complete (BioOne) (submittedVersion)
- Topics
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Stratigraphy of Fossils
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Evolution and Paleontology Studies
- Physical Sciences › Earth and Planetary Sciences › Paleontology › Paleontology and Evolutionary Biology
- Keywords
- Cambrian explosion, exceptional preservation, biogeography, biostratigraphy, evolutionary radiation
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