Results 61 to 70 of about 1,840 (219)
Ostracods from Upper Ordovician (Katian) carbonate lithofacies in southwest Scotland
Geological Magazine, 2010 AbstractThe Ordovician Craighead Limestone Formation of southwest Scotland was formed on a carbonate platform on the eastern tropical margin of the Laurentia palaeocontinent during the early Katian (c.456 Ma). It yields the most diverse and well-preserved ostracod fauna yet recovered from the Scottish Ordovician succession, with some 25 species ...
Mohibullah, M +5 more
openaire +3 more sources
Литосфера, 2020 Subject. The Upper Ordovician reef Bol’shaya Kos’yu, located on the western slope of the Northern Urals in the basin of the Ilych River is a unique object among coeval reefs due to the weak dolomitization of rocks and the ability to trace the phases of ...
L. A. Shmeleva
doaj +1 more source
The Digital Atlas of Ordovician Life: digitizing and mobilizing data for paleontologists and the public [PDF]
Estonian Journal of Earth Sciences, 2014 A new online resource, “The Digital Atlas of Ordovician Life: Exploring the Fauna of the Cincinnati Region” (www.OrdovicianAtlas.org), provides a tool for exploring the diversity, systematics, biogeography and stratigraphy of Late Ordovician fossils of ...
Alycia L. Stigall +2 more
doaj +1 more source
The first hirnantian (Uppermost Ordovician) Odontopleurid trilobite from western Gondwana (Argentina) [PDF]
, 2014 An odontopleurid trilobite remain is described for the fi rst time from Hirnantian (uppermost Ordovician) rocks of Western Gondwana. Very rare material, represented by a single left librigena, comes from a new fossil locality of the Don Braulio Formation
Halpern, Karen +2 more
core +1 more source
The cephalopods of the Boda Limestone, Late Ordovician, of Dalarna, Sweden
European Journal of Taxonomy, 2013 The late Katian, Late Ordovician Boda Limestone of Dalarna, Sweden contains a rich cephalopod assemblage. The assemblage consists of 61 species, of 31 genera, comprising almost all major Ordovician cephalopod orders.
Björn Kröger
doaj +1 more source
A new glyptorthid species (Brachiopoda: Orthida) from the Upper Ordovician of Estonia [PDF]
Estonian Journal of Earth Sciences, 2010 A new glyptorthid brachiopod species Bassettella alata with surface pits and lamellose frills is described from the Upper Ordovician Haljala and Keila stages of northern Estonia.
Linda Hints
doaj +1 more source
New Zealand Geological Timescale 2025
New Zealand Journal of Geology and Geophysics, Volume 69, Issue 1, March 2026.New Zealand Geological Timescale 2025 (NZGT 2025) is the first comprehensive update and revision of the New Zealand Geological Timescale in a decade. The criteria used to establish age ranges of New Zealand Stages within the NZGT have been reviewed, calibrated, and revised where required against the 2023/04 International Chronostratigraphic Chart and ...
Christopher D. Clowes +13 more
wiley +1 more source
δ13C chemostratigraphy in the upper Tremadocian through lower Katian (Ordovician) carbonate succession of the Siljan district, central Sweden [PDF]
Estonian Journal of Earth Sciences, 2014 Based on δ13C data from two drillcores recovered from the Siljan district, we present a first continuous carbon isotope record of the upper Tremadocian–lower Katian limestone succession of central Sweden.
Oliver Lehnert +4 more
doaj +1 more source
New late ordovician cornulitids from peru [PDF]
, 2016 Two new species of cornulitids, Cornulites zatoni sp. nov. and Cornulites vilcae sp. nov., are described from the lower part (Sandbian) of the Calapuja Formation of south-western Peru. Late Ordovician cornulitid diversities of Peru (Gondwana) and Estonia
Gutiérrez-Marco, J. C., Vinn, Olev
core +1 more source
La femme fait la maison: The Accumulation of Surplus Value through Family Planning in Burkina Faso1
Antipode, Volume 58, Issue 1, January 2026.Abstract Since the 1960s, demographers, international donors, and governments have calculated the political, economic, and social benefits of modern contraception usage in West Africa. We evidence how family planning technologies (FPTs) that are tethered to population development extract double value (productive and reproductive labour) from Burkinabè ...
T.D. Harper‐Shipman, Katian Napon
wiley +1 more source