Dataset Information

Evolutionary Transition in the Late Neogene Planktonic Foraminiferal Genus Truncorotalia.

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.

SUBMITTER: Bicknell RDC

PROVIDER: S-EPMC6205115 | biostudies-literature | 2018 Oct

REPOSITORIES: biostudies-literature

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Evolutionary Transition in the Late Neogene Planktonic Foraminiferal Genus Truncorotalia.

Bicknell Russell D C RDC Collins Katie S KS Crundwell Martin M Hannah Michael M Crampton James S JS Campione Nicolás E NE

iScience 20181017

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 morp ...[more]

PMID: 30342972

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Dataset Information

Evolutionary Transition in the Late Neogene Planktonic Foraminiferal Genus Truncorotalia.

Publications

Evolutionary Transition in the Late Neogene Planktonic Foraminiferal Genus Truncorotalia.

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