We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
An updated suprageneric classification of planktic foraminifera after growing evidence of multiple benthic-planktic transitions.
- Authors
ARENILLAS, Ignacio; ARZ, J. Antonio; GILABERT, Vicente
- Abstract
Planktic foraminifera have traditionally been classified within a single order: Globigerinida. However, recent phylogenetic studies, both molecular and stratophenetic, are evidencing the polyphyletic origin of planktic foraminifera from several benthic ancestors. At least four independent events of benthic-planktic transition have been identified. One of them occurred after the Cretaceous--Paleogene boundary mass extinction, originating the first Cenozoic globigerinids. Another three occurred in the Mesozoic, originating three groups of planktic foraminifera (globotruncanids, heterohelicids and guembelitriids) not related phylogenetically to each other or to current globigerinids. These findings make it necessary to carry out an exhaustive review of their suprageneric systematics, mainly at the order level. Here we propose a new, more natural classification, grouping them into four orders: Globigerinida, Heterohelicida, Globotruncanida n. ord., and Guembelitriida n. ord. To better refl ect the diversity and phylogeny of planktic foraminifera, we have also defined two new superfamilies: Abathomphaloidea n. superfam. and Parvularugoglobigerinoidea n. superfam., and one new family: Parvularuglobigerinidae n. fam.
- Subjects
GLOBIGERINIDAE; PROTOZOAN phylogeny; PROTOZOAN populations; MASS extinctions; MESOZOIC Era
- Publication
Spanish Journal of Palaeontology, 2022, Vol 37, Issue 1, p1
- ISSN
2255-0550
- Publication type
Article
- DOI
10.7203/sjp.22189