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Title: Evolutionary Transition in the Late Neogene Planktonic Foraminiferal Genus Truncorotalia
Contributor(s): Bicknell, Russell D C  (author)orcid ; Collins, Katie S (author); Crundwell, Martin (author); Hannah, Michael (author); Crampton, James S (author); Campione, Nicolas E  (author)orcid 
Publication Date: 2018-10-26
Early Online Version: 2018-10-17
Open Access: Yes
DOI: 10.1016/j.isci.2018.09.013Open Access Link
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Abstract: The fossil record provides empirical patterns of morphological change through time and is central to the study of the tempo and mode of evolution. Here we apply likelihood-based time-series analyses to the near-continuous fossil record of Neogene planktonic foraminifera and reveal a morphological shift along the Truncorotalia lineage. Based on a geometric morphometric dataset of 1,459 specimens, spanning 5.9-4.5 Ma, we recover a shift in the mode of evolution from a disparate latest Miocene morphospace to a highly constrained early Pliocene morphospace. Our recovered dynamics are consistent with those stipulated by Simpson's quantum evolution and Eldredge-Gould's punctuated equilibria and supports previous suppositions that even within a single lineage, evolutionary dynamics require a multi-parameter model framework to describe. We show that foraminiferal lineages are not necessarily gradual and can experience significant and rapid transitions along their¬†evolutionary trajectories and reaffirm the utility of multivariate datasets for their future research.
Publication Type: Journal Article
Source of Publication: iScience, v.8, p. 295-303
Publisher: Cell Press
Place of Publication: United States of America
ISSN: 2589-0042
Field of Research (FOR): 040308 Palaeontology (incl. Palynology)
060399 Evolutionary Biology not elsewhere classified
Socio-Economic Objective (SEO): 970104 Expanding Knowledge in the Earth Sciences
970106 Expanding Knowledge in the Biological Sciences
Peer Reviewed: Yes
HERDC Category Description: C1 Refereed Article in a Scholarly Journal
Appears in Collections:Journal Article
School of Environmental and Rural Science
School of Science and Technology

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