Conodont biostratigraphy in the Early to Middle Ordovician strata of the Oslobreen Group in Ny Friesland, Svalbard
(2013) In Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften 164(1). p.149-172- Abstract
- The remotely located Cambro-Ordovician strata in Ny Friesland, NE Spitsbergen, Svalbard, are referred to the Oslobreen Group, which is composed of the Tokammane, Kirtonryggen and Valhallfonna formations. Herein we record the conodont succession of the Kirtonryggen and Valhallfonna formations. Collections of well-preserved conodonts (CAI 1) have been recovered from the Lower to lower Middle Ordovician interval in the region. Eight regional conodont zones are established in this preliminary study of the Oslobreen Group exposed at Hinlopenstretet, NE Svalbard. In ascending order these zones are: Rossodus manitouensis, Macerodus dianae, Oneotodus costatus, Oepikodus communis, O. evae, O. intermedius, Periodon aff. flabellum-Periodon hankensis... (More)
- The remotely located Cambro-Ordovician strata in Ny Friesland, NE Spitsbergen, Svalbard, are referred to the Oslobreen Group, which is composed of the Tokammane, Kirtonryggen and Valhallfonna formations. Herein we record the conodont succession of the Kirtonryggen and Valhallfonna formations. Collections of well-preserved conodonts (CAI 1) have been recovered from the Lower to lower Middle Ordovician interval in the region. Eight regional conodont zones are established in this preliminary study of the Oslobreen Group exposed at Hinlopenstretet, NE Svalbard. In ascending order these zones are: Rossodus manitouensis, Macerodus dianae, Oneotodus costatus, Oepikodus communis, O. evae, O. intermedius, Periodon aff. flabellum-Periodon hankensis and Periodon macrodentatus. The yield is relatively poor for the Kirtonryggen Formation, but the oldest Ordovician conodont faunas span the Tremadocian Rossodus manitouesis through Macerodus dianae zones followed by the Floian Oepikodus communis Zone. The taxa are typical of the tropical North American Midcontinent faunal province that dominated the region until open marine associations invaded the shallow shelf (i.e. Evae transgression). The pandemic Oepikodus evae becomes frequent and is succeeded by O. intermedius in abundance in the lower Valhallfonna Formation (Olenidsletta Member). The upper strata are characterised by the Periodon-Paroistodus assemblage characteristic for outer shelf and slope environments around Laurentia. In total, this formation comprises the Floian and Dapingian stages and ends in the early Darriwilian Periodon macrodentatus Zone in this region. The Ny Friesland faunas show affinities to coeval assemblages from Northeast Greenland and West Newfoundland. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/3853367
- author
- Lehnert, Oliver LU ; Stouge, Svend and Brandl, Philipp A.
- organization
- publishing date
- 2013
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Ny Friesland, Svalbard (Spitsbergen), Tremadocian, Ordovician, conodont, biostratigraphy
- in
- Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften
- volume
- 164
- issue
- 1
- pages
- 149 - 172
- publisher
- E. Schweizerbart Science Publishers
- external identifiers
-
- wos:000317576400013
- scopus:84876253543
- ISSN
- 1860-1804
- DOI
- 10.1127/1860-1804/2013/0003
- language
- English
- LU publication?
- yes
- id
- 0e73c19f-a178-4cc8-888c-908a0efa3a4d (old id 3853367)
- date added to LUP
- 2016-04-01 13:33:23
- date last changed
- 2022-02-11 21:42:30
@article{0e73c19f-a178-4cc8-888c-908a0efa3a4d,
abstract = {{The remotely located Cambro-Ordovician strata in Ny Friesland, NE Spitsbergen, Svalbard, are referred to the Oslobreen Group, which is composed of the Tokammane, Kirtonryggen and Valhallfonna formations. Herein we record the conodont succession of the Kirtonryggen and Valhallfonna formations. Collections of well-preserved conodonts (CAI 1) have been recovered from the Lower to lower Middle Ordovician interval in the region. Eight regional conodont zones are established in this preliminary study of the Oslobreen Group exposed at Hinlopenstretet, NE Svalbard. In ascending order these zones are: Rossodus manitouensis, Macerodus dianae, Oneotodus costatus, Oepikodus communis, O. evae, O. intermedius, Periodon aff. flabellum-Periodon hankensis and Periodon macrodentatus. The yield is relatively poor for the Kirtonryggen Formation, but the oldest Ordovician conodont faunas span the Tremadocian Rossodus manitouesis through Macerodus dianae zones followed by the Floian Oepikodus communis Zone. The taxa are typical of the tropical North American Midcontinent faunal province that dominated the region until open marine associations invaded the shallow shelf (i.e. Evae transgression). The pandemic Oepikodus evae becomes frequent and is succeeded by O. intermedius in abundance in the lower Valhallfonna Formation (Olenidsletta Member). The upper strata are characterised by the Periodon-Paroistodus assemblage characteristic for outer shelf and slope environments around Laurentia. In total, this formation comprises the Floian and Dapingian stages and ends in the early Darriwilian Periodon macrodentatus Zone in this region. The Ny Friesland faunas show affinities to coeval assemblages from Northeast Greenland and West Newfoundland.}},
author = {{Lehnert, Oliver and Stouge, Svend and Brandl, Philipp A.}},
issn = {{1860-1804}},
keywords = {{Ny Friesland; Svalbard (Spitsbergen); Tremadocian; Ordovician; conodont; biostratigraphy}},
language = {{eng}},
number = {{1}},
pages = {{149--172}},
publisher = {{E. Schweizerbart Science Publishers}},
series = {{Zeitschrift der Deutschen Gesellschaft fur Geowissenschaften}},
title = {{Conodont biostratigraphy in the Early to Middle Ordovician strata of the Oslobreen Group in Ny Friesland, Svalbard}},
url = {{http://dx.doi.org/10.1127/1860-1804/2013/0003}},
doi = {{10.1127/1860-1804/2013/0003}},
volume = {{164}},
year = {{2013}},
}