The University of Southampton
University of Southampton Institutional Repository

Early Eocene to early Miocene radiolarian biostratigraphy for the low-latitude Pacific Ocean

Early Eocene to early Miocene radiolarian biostratigraphy for the low-latitude Pacific Ocean
Early Eocene to early Miocene radiolarian biostratigraphy for the low-latitude Pacific Ocean
A total of 226 early Eocene to early Miocene radiolarian datum events are identified and correlated with the geochronologic time scale at SitesU1331, U1332, and U1333 in the equatorial Pacific Ocean. Seven new radiolarian subzones are proposed for the low-latitude Oligocene: Eucyrtidium diaphanes Interval Subzone (RP22b); Calocycletta (Calocycletta) robusta Interval Subzone (RP22a); Lychnocanoma apodora Interval Subzone (RP21b); Theocyrtis annosa Interval Subzone (RP21a); Eucyrtidium plesiodiaphanes Interval Subzone (RP20c); Dorcadospyris pseudopapilio Interval Subzone (RP20b); Lithocyclia angusta Interval Subzone (RP20a). These subzones significantly improve the biostratigraphic resolutionwithin theOligocene (an average of one subzone per 1.6 million years [my]).Our study corroborates previous studies,which inferred that primary Oligocene datumswere synchronous in the low-latitude Pacific. Four Eocene zones, Cryptocarpium ornatum (RP19), Calocyclas bandyca (RP18), Phormocyrtis striata striata (RP9), and Buryella clinata (RP8) are emended. Two new species/subspecies, Lychnocanoma klausi and Theocorys anaclasta clasta, are described
1547-139X
77-108
Kamikuri, Shin-ichi
1987bf4c-0d07-4c89-b8f1-3debcecf66f9
Moore, Theodore C.
167d3d63-d5ff-47c2-ade0-345dfebc7161
Ogane, Kaoru
d512ec1e-b64c-4f4e-ac66-f2fd767b9a0d
Suzuki, Noritoshi
b69e92aa-2620-4aa3-8d3f-51ace2d0b4e0
Palike, Heiko
b9bf7798-ad8c-479b-8487-dd9a30a61fa5
Nishi, Hiroshi
8f3b93ee-0878-4e32-afe1-1d8192f09e07
Kamikuri, Shin-ichi
1987bf4c-0d07-4c89-b8f1-3debcecf66f9
Moore, Theodore C.
167d3d63-d5ff-47c2-ade0-345dfebc7161
Ogane, Kaoru
d512ec1e-b64c-4f4e-ac66-f2fd767b9a0d
Suzuki, Noritoshi
b69e92aa-2620-4aa3-8d3f-51ace2d0b4e0
Palike, Heiko
b9bf7798-ad8c-479b-8487-dd9a30a61fa5
Nishi, Hiroshi
8f3b93ee-0878-4e32-afe1-1d8192f09e07

Kamikuri, Shin-ichi, Moore, Theodore C., Ogane, Kaoru, Suzuki, Noritoshi, Palike, Heiko and Nishi, Hiroshi (2012) Early Eocene to early Miocene radiolarian biostratigraphy for the low-latitude Pacific Ocean. Stratigraphy, 9 (1), 77-108.

Record type: Article

Abstract

A total of 226 early Eocene to early Miocene radiolarian datum events are identified and correlated with the geochronologic time scale at SitesU1331, U1332, and U1333 in the equatorial Pacific Ocean. Seven new radiolarian subzones are proposed for the low-latitude Oligocene: Eucyrtidium diaphanes Interval Subzone (RP22b); Calocycletta (Calocycletta) robusta Interval Subzone (RP22a); Lychnocanoma apodora Interval Subzone (RP21b); Theocyrtis annosa Interval Subzone (RP21a); Eucyrtidium plesiodiaphanes Interval Subzone (RP20c); Dorcadospyris pseudopapilio Interval Subzone (RP20b); Lithocyclia angusta Interval Subzone (RP20a). These subzones significantly improve the biostratigraphic resolutionwithin theOligocene (an average of one subzone per 1.6 million years [my]).Our study corroborates previous studies,which inferred that primary Oligocene datumswere synchronous in the low-latitude Pacific. Four Eocene zones, Cryptocarpium ornatum (RP19), Calocyclas bandyca (RP18), Phormocyrtis striata striata (RP9), and Buryella clinata (RP8) are emended. Two new species/subspecies, Lychnocanoma klausi and Theocorys anaclasta clasta, are described

This record has no associated files available for download.

More information

Published date: 2012
Organisations: Paleooceanography & Palaeoclimate

Identifiers

Local EPrints ID: 345249
URI: http://eprints.soton.ac.uk/id/eprint/345249
ISSN: 1547-139X
PURE UUID: 80f20fb8-e2bf-4f12-8bbe-fce1f2a15d7e

Catalogue record

Date deposited: 14 Nov 2012 11:42
Last modified: 27 Apr 2022 06:14

Export record

Contributors

Author: Shin-ichi Kamikuri
Author: Theodore C. Moore
Author: Kaoru Ogane
Author: Noritoshi Suzuki
Author: Heiko Palike
Author: Hiroshi Nishi

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×