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Ediacaran developmental biology.
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- Author(s): Dunn FS;Dunn FS;Dunn FS; Liu AG; Liu AG; Donoghue PCJ; Donoghue PCJ
- Source:
Biological reviews of the Cambridge Philosophical Society [Biol Rev Camb Philos Soc] 2018 May; Vol. 93 (2), pp. 914-932. Date of Electronic Publication: 2017 Nov 03.
- Publication Type:
Journal Article; Research Support, Non-U.S. Gov't
- Language:
English
- Additional Information
- Source:
Publisher: Cambridge University Press Country of Publication: England NLM ID: 0414576 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1469-185X (Electronic) Linking ISSN: 00063231 NLM ISO Abbreviation: Biol Rev Camb Philos Soc Subsets: MEDLINE
- Publication Information:
Original Publication: London, Cambridge University Press.
- Subject Terms:
- Abstract:
Rocks of the Ediacaran System (635-541 Ma) preserve fossil evidence of some of the earliest complex macroscopic organisms, many of which have been interpreted as animals. However, the unusual morphologies of some of these organisms have made it difficult to resolve their biological relationships to modern metazoan groups. Alternative competing phylogenetic interpretations have been proposed for Ediacaran taxa, including algae, fungi, lichens, rhizoid protists, and even an extinct higher-order group (Vendobionta). If a metazoan affinity can be demonstrated for these organisms, as advocated by many researchers, they could prove informative in debates concerning the evolution of the metazoan body axis, the making and breaking of axial symmetries, and the appearance of a metameric body plan. Attempts to decipher members of the enigmatic Ediacaran macrobiota have largely involved study of morphology: comparative analysis of their developmental phases has received little attention. Here we present what is known of ontogeny across the three iconic Ediacaran taxa Charnia masoni, Dickinsonia costata and Pteridinium simplex, together with new ontogenetic data and insights. We use these data and interpretations to re-evaluate the phylogenetic position of the broader Ediacaran morphogroups to which these taxa are considered to belong (rangeomorphs, dickinsoniomorphs and erniettomorphs). We conclude, based on the available evidence, that the affinities of the rangeomorphs and the dickinsoniomorphs lie within Metazoa.
(© 2017 The Authors. Biological Reviews published by John Wiley & Sons Ltd on behalf of Cambridge Philosophical Society.)
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- Grant Information:
BB/N000919/1 United Kingdom BB_ Biotechnology and Biological Sciences Research Council
- Contributed Indexing:
Keywords: Bilateria; Ediacaran; Eumetazoa; Metazoa; development; evolution
- Publication Date:
Date Created: 20171107 Date Completed: 20190304 Latest Revision: 20231112
- Publication Date:
20240829
- Accession Number:
PMC5947158
- Accession Number:
10.1111/brv.12379
- Accession Number:
29105292
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