Chronostratigraphy and geochronology: a proposed realignment [PDF]
, 2013 We propose a realignment of the terms geochronology and chronostratigraphy that brings them broadly into line with current use, while simultaneously resolving the debate over whether the Geological Time Scale should have a “single” or “dual” hierarchy of
Cita, Maria Bianca +6 more
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Late Ordovician scolecodonts and chitinozoans from the Pin Valley in Spiti, Himachal Pradesh, northern India [PDF]
Acta Palaeontologica PolonicaThe end of the Ordovician witnessed major perturbations in the ecosystem, seriously affecting global marine biodiversity. Nevertheless, some marine organism groups and their crisis-bound palaeogeographic distribution are still understudied.
PETRA TONAROVÁ +8 more
doaj +1 more source
The timescale of early land plant evolution [PDF]
, 2018 Establishing the timescale of early land plant evolution is essential for testing hypotheses on the coevolution of land plants and Earth's System. The sparseness of early land plant megafossils and stratigraphic controls on their distribution make the ...
Beckert +17 more
core +5 more sources
Building capacities in Caribbean animal health in the : The VEP (Veterinary Epidemiologist / Para-Epidemiologist) Project [PDF]
, 2012 Disease surveillance and control within the Caribbean has historically been difficult. The region is made up of over 31 countries, territories, and protectorates, with concomitant differences in language, culture, and historical experiences.
Delgado, Amy +6 more
core
Pembangunan kemahiran penyelesaian masalah berlandaskan projek origami [PDF]
, 2014 Kemahiran penyelesaian masalah merupakan salah satu kaedah pengajaran yang digunakan di dalam kelas. Ia merupakan satu proses pengajaran dan pembelajaran yang berasaskan pengalaman dan memerlukan pelajar berfikir secara aktif.
Ahmad, Z. +4 more
core +1 more source
Probabilistic Knowledge as Objective Knowledge in Quantum Mechanics: Potential Powers Instead of Actual Properties [PDF]
, 2015 In classical physics, probabilistic or statistical knowledge has been always related to ignorance or inaccurate subjective knowledge about an actual state of affairs.
de Ronde, Christian
core +3 more sources
Data from: Katian (Upper Ordovician) conodonts from Wales. Dryad Digital Repository.
, 2013 Middle and upper Katian conodonts were previously known in the British Isles from relatively small collections obtained from a few localities. The present study is mainly based on 17 samples containing more than 17 000 conodont elements from an approximately 14-m-thick succession of the Sholeshook Limestone Formation in a road cut near Whitland, South ...
FERRETTI, Annalisa +2 more
openaire +1 more source
An unusual new ophiuroid (Echinodermata) from the Late Ordovician (early Katian) of Morocco
Comptes Rendus PalevolA distinctive new genus and species of the subphylum Asterozoa, Componaster spurius n. gen., n. sp., is described from the Late Ordovician (early Katian) of Morocco. Construction of the ambulacral column is considered key to delineation of classes of the subphylum Asterozoa: morphology and configuration of the mouth frame, axial (ambulacral series ...
Glass, Alexander +2 more
openaire +2 more sources
Rapid marine oxygen variability: Driver of the Late Ordovician mass extinction. [PDF]
Sci Adv, 2022 Kozik NP +8 more
europepmc +1 more source
Uppermost Ordovician (upper Katian-Hirnantian) graptolites of north-central Nevada, U.S.A. [PDF]
Bulletin of Geosciences, 2011 P. Štorch +3 more
openaire +1 more source