Middle and Upper Ordovician carbon isotope chemostratigraphy in Baltoscandia: a correlation standard and clues to environmental history

L Ainsaar, D Kaljo, T Martma, T Meidla… - Palaeogeography …, 2010 - Elsevier
The Baltoscandian epeiric sea was characterised by relatively slow but continuous
carbonate deposition from the Middle Ordovician up to the Silurian. Relatively good …

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 …

Ordovician of the Eastern Baltic palaeobasin and the Tornquist Sea margin of Baltica

T Meidla, L Ainsaar, O Hints, S Radzevičius - 2023 - pubs.geoscienceworld.org
This paper summarizes recent knowledge on the palaeontology, biostratigraphy, correlation,
sea-level and climate history and isotopic geochemistry of the Ordovician rocks in the …

Climate changes in the pre-Hirnantian Late Ordovician based on δ18Ophos studies from Estonia

P Männik, O Lehnert, J Nolvak… - Palaeogeography …, 2021 - Elsevier
Results of conodont-based δ 18 O phos studies from two core sections in Estonia
(Mehikoorma-421 and Valga-10) indicate that the pre-Hirnantian Late Ordovician was …

Two almost‐forgotten Trypanites ichnospecies names for the most common Palaeozoic macroboring

D Knaust, AV Dronov, U Toom - Papers in Palaeontology, 2023 - Wiley Online Library
Trypanites is the most common macroboring with a global occurrence throughout the
Phanerozoic and is the eponym of the Trypanites ichnofacies. It has great value for the …

Middle Ordovician paleoenvironmental evolution of the western Laurentian carbonate platform: Evidence for persistent oxygenation of the shallow ocean and …

CW Diamond, MR Saltzman, TW Lyons… - Palaeogeography …, 2024 - Elsevier
Abstract The Great Ordovician Biodiversification Event (GOBE) encompasses a series of
rapid and sustained diversification pulses unparalleled in Earth history. Despite the …

Ordovician and Silurian ichnofossils from carbonate facies in Estonia: a collection-based review

U Toom, O Vinn, O Hints - Palaeoworld, 2019 - Elsevier
Trace fossils are common in the Ordovician and Silurian shallow marine carbonate
succession of Estonia, with 45 ichnofossil genera and five bioclaustration structures …

Shallow-marine carbonates

D Knaust, HA Curran, AV Dronov - Developments in Sedimentology, 2012 - Elsevier
The ichnology of carbonate sedimentary systems is less well studied compared to that of
siliciclastic systems. Shallow-marine carbonates differ from their siliciclastic counterparts by …

Ordovician reef and mound evolution: the Baltoscandian picture

B Kröger, L Hints, O Lehnert - Geological Magazine, 2017 - cambridge.org
The widespread growth of reefs formed by a framework of biogenic constructors and frame-
lacking carbonate mounds began on Baltica during Ordovician time. Previously, Ordovician …

Palynomorph optical analyses for thermal maturity assessment of Upper Ordovician (Katian-Hirnantian) rocks from Southern Estonia

A Sorci, S Cirilli, G Clayton, S Corrado, O Hints… - Marine and Petroleum …, 2020 - Elsevier
Application of integrated, multi-proxy optical analytical techniques for the assessment of
thermal maturity of organic matter was tested in Katian to Hirnantian (Upper Ordovician) …