A new chitinozoan species from the Upper Ordovician of the East BalticNõlvak, JaakEstonian journal of earth sciences2007 / 1, p. 63-64 : ill

Accretionary mechanisms and temporal sequence of formation of the Boda Limestone mud-mounds (Upper Ordovician), Siljan District, SwedenKröger, Björn; Ebbestad, Jan Ove R.; Lehnert, OliverJournal of sedimentary research2016 / p. 363-379 : ill https://doi.org/10.2110/jsr.2016.12

Chitinozoan biostratigraphy of the Upper Ordovician D. clingani and P. linearis graptolite biozones on the Island of Bornholm, DenmarkVandenbroucke, Thijs R. A.; Recourt, Philippe; Nõlvak, Jaak; Nielsen, Arne T.Stratigraphy2013 / p. 281-301 : ill

Conodont biostratigraphy in the Middle-Upper Ordovician boundary beds of EstoniaViira, ViiveEstonian journal of Earth sciences2008 / 1, p. 23-38 : ill

Conodont biostratigraphy of the Oandu Stage (Katian, Upper Ordovician) in NE EstoniaMännik, PeepEstonian journal of earth sciences2017 / p. 1-12 : ill https://doi.org/10.3176/earth.2017.02

Earliest Petroxestes borings from Sandbian (earliest late ordovician) bryozoans of Northern EstoniaVinn, Olev; Ernst, Andrej; Toom, UrsulaPalaios2019 / p. 453-457 https://doi.org/10.2110/palo.2019.054 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Hirnantian (latest Ordovician) bio- and chemostatigraphy of the Stirnas-18 core, western LatviaHints, Linda; Hints, Olle; Kaljo, Dimitri; Kiipli, Tarmo; Männik, Peep; Nõlvak, Jaak; Pärnaste, HeljeEstonian journal of earth sciences2010 / p. 1-24 : ill https://artiklid.elnet.ee/record=b2739538*est

Latest Ordovician to early Silurian integrated bio-and chemostratigraphy in northern Lithuania, central East BalticHints, Olle; Ainsaar, Leho; Lepland, Aivo; Männik, Peep; Meidla, Tõnu; Nõlvak, Jaak; Radzevičius, SigitasLille 2021 : Ordovician of the World : programme with abstracts2021 / p. 40-41 https://docplayer.net/219093593-Programme-with-abstracts-2021-virtual-annual-meeting-of-igcp-virtual-annual-meeting-of-igcp-735.html

Links between bioerosion and oversized benthic fossils : insights from the Upper Ordovician of Estonia, BalticaToom, Ursula; Isakar, Mare; Vinn, Olev; Hints, OlleLille 2021 : Ordovician of the World : programme with abstracts2021 / p. 76-77 https://docplayer.net/219093593-Programme-with-abstracts-2021-virtual-annual-meeting-of-igcp-virtual-annual-meeting-of-igcp-735.html

New bioclaustration in trepostome bryozoans from the Late Ordovician (Sandbian) of EstoniaVinn, Olev; Ernst, Andrej; Wilson, Mark A.; Toom, UrsulaLille 2021 : Ordovician of the World : programme with abstracts2021 / p. 78 https://docplayer.net/219093593-Programme-with-abstracts-2021-virtual-annual-meeting-of-igcp-virtual-annual-meeting-of-igcp-735.html

New bioclaustration of a symbiont in the mantle cavity of Clitambonites schmidti (Brachiopoda) from the Sandbian (Upper Ordovician) of EstoniaVinn, Olev; Wislon, M. A.; Isakar, Mare; Toom, UrsulaPalaios2022 / p. 520−524 https://doi.org/10.2110/palo.2021.067 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

New biostratigraphically important chitinozoans from the Kukruse Regional Stage, Upper Ordovician of BaltoscandiaNõlvak, Jaak; Bauert, GarmenEstonian journal of earth sciences2015 / p. 218-224 : ill https://artiklid.elnet.ee/record=b2739527*est

Palynomorph optical analyses for thermal maturity assessment of upper ordovician (Katian-Hirnantian) rocks from Southern EstoniaSorci, Andrea; Cirilli, Simonetta; Clayton, Geoff; Corrado, Sveva; Hints, Olle; Goodhue, Robbie; Schito, Andrea; Spina, AmaliaMarine and Petroleum Geology2020 / art. 104574 https://doi.org/10.1016/j.marpetgeo.2020.104574 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Recent developments in the Upper Ordovician and lower Silurian conodont biostratigraphy in EstoniaMännik, PeepEstonian journal of earth sciences2007 / 1, p. 35-46 : ill

Reconstructing Late Ordovician carbon cycle variationsPancost, Richard D; Freeman, Katherine H.; Herrmann, Achim D.; Patzkowsky, Mark E.; Ainsaar, Leo; Martma, TõnuGeochimica et cosmochimica acta2013 / p. 433-454 : ill

Siliciclastic grain size composition of the Upper Ordovician rocks of the Blidene Formation in western LatviaLääts, JaanikaProceedings of the Estonian Academy of Sciences. Geology2006 / 2, p. 175-184 : ill

Upper Ordovician volcanic ash bedsKiipli, Tarmo; Kallaste, Toivo; Kiipli, Enli; Orlova, KiiraEstonian geological sections / Geological Survey of Estonia2006 / p. 15-18 : ill

Upper Sandbian-lower Katian bio- and chemostratigraphy in the Pajevonys-13 core section, LithuaniaHints, Linda; Paškevičius, Juozas; Martma, Tõnu; Männik, Peep; Nõlvak, JaakEstonian journal of earth sciences2016 / p. 85-97 : ill http://dx.doi.org/10.3176/earth.2016.08