The Ordovician of Scandinavia: a revised regional stage classification

AT Nielsen, P Ahlberg, JOR Ebbestad… - Geological Society …, 2023 - lyellcollection.org
Abstract The Ordovician of Scandinavia (ie Denmark, Norway and Sweden) has been
investigated for over two centuries and, through time, various chronostratigraphic schemes …

Graptolite biozone correlation charts

DK Loydell - Geological Magazine, 2012 - cambridge.org
Charts are presented showing the correlation of graptolite biozonations for the Lower
Ordovician to Lower Devonian, ie for the entire stratigraphical range of the planktonic …

Progressive marine oxygenation and climatic cooling at the height of the Great Ordovician Biodiversification Event

NP Kozik, SA Young, P Ahlberg, A Lindskog… - Global and Planetary …, 2023 - Elsevier
The oxygen content of ancient seawater has been hypothesized to be a major controlling
factor for biodiversity throughout Earth's history. The Great Ordovician Biodiversification …

Biostratigraphy and palaeoecology of Lower Ordovician graptolites from the Fezouata Shale (Moroccan Anti-Atlas)

JC Gutiérrez-Marco, ELO Martin - Palaeogeography, Palaeoclimatology …, 2016 - Elsevier
Abstract The Fezouata Shale (= Fezouata Formation) has produced the most complete
Lower Ordovician graptolite succession known from the African continent, which was studied …

Ordovician biostratigraphy: index fossils, biozones and correlation

D Goldman, SA Leslie, Y Liang, SM Bergström - 2023 - pubs.geoscienceworld.org
Two remarkable events in the history of life on the Earth occur during the Ordovician Period
(486.9–443.1 Ma). The first is an exceptionally rapid and sustained radiation of marine life …

Age calibration of the Lower Ordovician Fezouata Lagerstätte, Morocco

B Lefebvre, JC Gutiérrez-Marco, O Lehnert, ELO Martin… - Lethaia, 2018 - idunn.no
The Fezouata Lagerstätte, discovered in the Lower Ordovician rocks of Morocco, is a
Konservat-Lagerstätte of prime scientific importance. It provides access not only to the …

The Ordovician System in the Levant region (Middle East) and southern Turkey: review of depositional facies, fauna and stratigraphy

O Elicki, T Meischner, S Gürsu, JF Ghienne, A Masri… - 2023 - pubs.geoscienceworld.org
The Ordovician System in the Levant region (Middle East) and southern Turkey: review of
depositional facies, fauna and stratigraphy | A Global Synthesis of the Ordovician System: Part …

The Ordovician of southern South America

BG Waisfeld, JL Benedetto, BA Toro, GG Voldman… - 2023 - pubs.geoscienceworld.org
Early Paleozoic rocks are widespread, superbly exposed, and reach several thousand
metres thick in southern South America. A largely quadripartite geotectonic subdivision of …

Graptolite-Trilobite Biostratigraphy in the Santa Victoria Area, Northwestern Argentina. A Key for Regional and Worldwide Correlation of the Lower Ordovician …

BA Toro, FRM Arcerito, DF Muñoz, BG Waisfeld… - Ameghiniana, 2015 - BioOne
New graptolite-trilobite records provide relevant information for the biostratigraphic
framework of the lower Paleozoic in western Gondwana. Aorograptus victoriae (TS Hall) …

High resolution trilobite stratigraphy of the Lower–Middle Ordovician Öland Series of Baltoscandia

H Pärnaste, J Bergström, Z Zhiyi - Geological Magazine, 2013 - cambridge.org
The first ever list of the regional Öland Series (Tremadocian to mid Darriwilian) trilobites and
agnostids from the whole of Baltoscandia is compiled. The study includes revision of …