Iterative evolution of digitate planktonic foraminifera

Digitate shell morphologies have evolved repeatedly in planktonic foraminifera throughout the Cretaceous and Cenozoic. Digitate species are usually rare in fossil and modern assemblages but show increased abundance and diversity at times during the Cretaceous and mid- dle Eocene. In this paper we di...

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Bibliographic Details
Main Authors: Coxall, Helen K., Wilson, Paul A., Pearson, Paul N., Sexton, Philip F.
Format: Article in Journal/Newspaper
Language:unknown
Published: 2007
Subjects:
Online Access:https://oro.open.ac.uk/26788/
https://oro.open.ac.uk/26788/1/Coxall_et_al_2007_Pbiol.pdf
http://paleobiol.geoscienceworld.org/
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Summary:Digitate shell morphologies have evolved repeatedly in planktonic foraminifera throughout the Cretaceous and Cenozoic. Digitate species are usually rare in fossil and modern assemblages but show increased abundance and diversity at times during the Cretaceous and mid- dle Eocene. In this paper we discuss the morphology and stratigraphic distribution of digitate planktonic foraminifera and establish the isotopic depth ecology of fossil ones to draw parallels with modern counterparts.