A molecular palaeobiological exploration of arthropod terrestrialization
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A molecular palaeobiological ...
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Authors
Lozano-Fernandez, JCarton, R
Tanner, AR
Puttick, MN
Blaxter, M
Vinther, J
Olesen, J
Giribet, G
Edgecombe, GD

Pisani, D
Issue date
2016-07-19Submitted date
2020-11-13Subject Terms
phylogenyterrestrialization
arthropod evolution
molecular clock
molecular palaeobiology
taxonomy and systematics
evolution
molecular biology
palaeontology
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Show full item recordAbstract
Understanding animal terrestrialization, the process through which animals colonized the land, is crucial to clarify extant biodiversity and biological adaptation. Arthropoda (insects, spiders, centipedes and their allies) represent the largest majority of terrestrial biodiversity. Here we implemented a molecular palaeobiological approach, merging molecular and fossil evidence, to elucidate the deepest history of the terrestrial arthropods. We focused on the three independent, Palaeozoic arthropod terrestrialization events (those of Myriapoda, Hexapoda and Arachnida) and showed that a marine route to the colonization of land is the most likely scenario. Molecular clock analyses confirmed an origin for the three terrestrial lineages bracketed between the Cambrian and the Silurian. While molecular divergence times for Arachnida are consistent with the fossil record, Myriapoda are inferred to have colonized land earlier, substantially predating trace or body fossil evidence. An estimated origin of myriapods by the Early Cambrian precedes the appearance of embryophytes and perhaps even terrestrial fungi, raising the possibility that terrestrialization had independent origins in crown-group myriapod lineages, consistent with morphological arguments for convergence in tracheal systems. This article is part of the themed issue ‘Dating species divergences using rocks and clocks’.Citation
Lozano-Fernandez Jesus, Carton Robert, Tanner Alastair R., Puttick Mark N., Blaxter Mark, Vinther Jakob, Olesen Jørgen, Giribet Gonzalo, Edgecombe Gregory D. and Pisani Davide 2016A molecular palaeobiological exploration of arthropod terrestrializationPhil. Trans. R. Soc. B37120150133 http://doi.org/10.1098/rstb.2015.0133Publisher
The Royal SocietyType
Journal ArticleItem Description
© 2016 The Authors. Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.ISSN
0962-8436EISSN
1471-2970ae974a485f413a2113503eed53cd6c53
10.1098/rstb.2015.0133
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