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New Late Oligocene to Pleistocene hyaline calcareous unilocular foraminifera from DSDP site 357 (Leg 39) on the Rio Grande Rise, southwest Atlantic Ocean

Published online by Cambridge University Press:  14 July 2015

R. Timothy Patterson  and
Susan M. Burbidge
R. Timothy Patterson
Affiliation:
Ottawa-Carleton Geoscience Center and Department of Earth Sciences, Carleton University, Ottawa, Ontario, Canada K1S 5B6
Susan M. Burbidge
Affiliation:
Ottawa-Carleton Geoscience Center and Department of Earth Sciences, Carleton University, Ottawa, Ontario, Canada K1S 5B6
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Abstract

Thirty-two new species of unilocular benthic foraminifera were described from 50 Late Oligocene to Pleistocene samples from DSDP Site 357 (Leg 39) on the Rio Grande Rise in the southwest Atlantic Ocean. These new species make up nearly one-third of the 112 species of unilocular foraminifers identified in the core. Such a high proportion of new taxa is not unexpected as the group has been ignored by most researchers.

New taxa described include Lagena praemeridionalis, Lagena rotundocostatina, Exsculptina sicula, Exsculptina umbelliforma Patterson and Cavazza, Favulina prolatella, Favulina quasiperthensis, Galwayella copiosotubula, Galwayella oscula, Galwayella spherula, Homalohedra anastomocostata, Homalohedra goniachrados, Homalohedra gothicofenestella, Homalohedra polykamptarion, Lagnea congestacolla, Lagnea derbiosa, Oolina curvella, Vasicostella lecythella, Vasicostella spinulafunda, Fissurina anapetebasilaris, Fissurina binaroculella, Fissurina favobasella, Fissurina fissuroscula, Fissurina labeona, Lagenosolenia angula, Lagenosolenia penna, Palliolatella anfracta, Palliolatella hadrocheilos, Pseudoolina becella, Pseudoolina oscillum, Parafissurina kladerorhektis, Parafissurina prolatolonga, and Pseudofissurina plastica.

The new name, Lagenosolenia incompta, is proposed for Lagena bicarinata (Terquem) var. polita Matthes, 1939.

Type
Research Article
Information
Journal of Paleontology , Volume 69 , Issue 4 , July 1995 , pp. 635 - 655
Copyright
Copyright © The Paleontological Society 

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