A new chitinozoan species from the Middle Ordovician of EstoniaNõlvak, JaakEstonian journal of earth sciences2012 / p. 131-132 : ill https://artiklid.elnet.ee/record=b2497395*est

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

Age constraints of the Hungshihyen Formation (Early to Middle Ordovician) on the western margin of the Yangtze Platform, South China : new insights from chitinozoansLiang, Yan; Wang, Guang-Xu; Servais, Thomas; Wu, Rong-Chang; Nõlvak, Jaak; Hints, Olle; Weif, Xin; Gong, Fang-YiPalaeoworld2020 / p. 66-74 : ill https://doi.org/10.1016/j.palwor.2019.05.008 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Age of Estonian kukersite oil shale - Middle or Late Ordovician?Hints, Olle; Nõlvak, Jaak; Viira, ViiveOil shale2007 / 4, p. 527-533 : ill https://artiklid.elnet.ee/record=b2376556*est

An example of a regional geological database and its application for analyzing
diversity patterns of Ordovician and Silurian chitinozoans of BaltoscandiaHints, Olle; Antonovitš, Liina; Nestor, Viiu; Nõlvak, JaakOrdovician By The Lakes : International Geoscience Programme Project 653 - Opening Meeting2016 / p. 19-20 http://www.igcp653.org/wp-content/uploads/2016/03/A5-Programme-FINAL-WEB-2-REDUCED.pdf

Assessing the quality of Baltoscandian chitinozoan biozones using quantitative stratigraphy [Online resource]Hints, Olle; Antonovitš, Liina; Nõlvak, Jaak; Liang, YanTrekking Across the GOBE : From the Cambrian through the Katian, June 3-7, 2018 : program & abstracts2018 / p. 39 https://igcp653athens2018.files.wordpress.com/2018/05/conference-programabstracts-sm1.pdf

Baltic Ordovician and Silurian chitinozoans : a quantitative stratigraphic synthesisAntonovitš, Liina; Nestor, Viiu; Nõlvak, Jaak; Hints, Olle; Martma, Tõnu; Kiipli, TarmoIGCP 591 : The Early to Middle Paleozoic Revolution : Closing Meeting, Ghent University, Belgium, 6-9 July 2016 : abstracts2016 / p. 22

Biostratigraphic (graptolites, chitinozoans, acritarchs, brachiopods) and chemostratigraphic (delta13C) correlations between latest Ordovician strata in Laurentia and BalticaDelabroye, A.; Vecoli, M.; Nõlvak, Jaak; Uutela, AThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 15

Boundary between the Porkuni and Juuru regional stages in the Neitla section, EstoniaMännik, Peep; Nõlvak, JaakEstonian journal of earth sciences2023 / p. 66-69 : ill https://doi.org/10.3176/earth.2023.52 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

A brief overview of the history and geology of TallinnNõlvak, Jaak15th Meeting of the Association of European Geological Societies "Georesources and public policy : research, management, environment" : 16-20 September 2007, Tallinn, Estonia : excursion guidebook2007 / p. 5-9 : ill., map https://www.ester.ee/record=b2291671*est

CHITDB : a database for documenting and analysing diversification of Ordovician-Silurian chitinozoans in the Baltic regionHints, Olle; Antonovitš, Liina; Bauert, Garmen; Nestor, Viiu; Nõlvak, Jaak; Tammekänd, MairyLethaia2018 / p. 218 - 227 https://doi.org/10.1111/let.12249 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Chitinozoan biostratigraphy in the Haljala Regional Stage, Upper Ordovician: A high-resolution approach from NE EstoniaBauert, Garmen; Nõlvak, Jaak; Bauert, HeikkiGFF2014 / p. 26-29 : ill https://doi.org/10.1080/11035897.2013.857715 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Chitinozoan biostratigraphy in the Ordovician of BaltoscandiaNõlvak, Jaak2002 http://www.ester.ee/record=b1035650*est

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 https://biblio.ugent.be/publication/5645860

Chitinozoan dynamics and biostratigraphy in the Väo Formation (Darriwilian) of the Uuga Cliff, Pakri Peninsula, NW EstoniaTammekänd, Mairy; Hints, Olle; Nõlvak, JaakEstonian journal of earth sciences2010 / 1, p. 25-36 : ill https://artiklid.elnet.ee/record=b1965715*est

Chitinozoan response to a gigantic Late Ordovician volcanic ash fall recorded in northern EstoniaHints, Olle; Bauert, Garmen; Grigorjeva, Irina; Nõlvak, Jaak; Meidla, Tõnu; Perrier, Vincent10th Baltic Stratigraphic Conference : Checiny, 12-14 September 2017 : abstracts and field guide2017 / p. 34-35 http://geo.uw.edu.pl/tl_files/publikacje/10th_Baltic_Stratigraphic_Conference_Abstracts_and_Field_Guide.pdf

Chitinozoan study : review and prospectLiang, Y.; Tang, P.; Hints, Olle; Nõlvak, Jaak; Zhang L.; Chen, Y.Acta Palaeontologica Sinica2023 / p. 436-450 https://doi.org//10.19800/j.cnki.aps.2023003

Chitinozoans with “skirt”: Ultrastructure and palaeoecological implications of carina in Cyathochitina Eisenack, 1955Wang, Wenhui; Liang, Yan; Lyu, Qiao; Hints, Olle; Chen, Shefa; Nõlvak, JaakPalaeogeography, palaeoclimatology, palaeoecology2021 / art. 110348, 16 p.: ill https://doi.org/10.1016/j.palaeo.2021.110348 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Clarifying Haljala Stage in EstoniaPaiste, Tõnn; Meidla, Tõnu; Männik, Peep; Nõlvak, Jaak13th International Symposium on the Ordovician System, July 19-22, 20192019 / p. 149–150 http://www.igcp653.org/wp-content/uploads/2019/07/ISOS13Proceedings.pdf

Climate changes in the pre-Hirnantian late Ordovician based on δ18Ophos studies from EstoniaMännik, Peep; Lehnert, Oliver; Nõlvak, Jaak; Joachimski, Michael M.Palaeogeography, palaeoclimatology, palaeoecology2021 / p. 110347, 16 p. : ill https://doi.org/10.1016/j.palaeo.2021.110347 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

A CONOP9 quantitative stratigraphic model of Baltic Ordovician and Silurian chitinozoan distribution and K-bentonitesAntonovitš, Liina; Nestor, Viiu-Kai; Nõlvak, Jaak; Bauert, Garmen; Hints, Olle; Kiipli, TarmoStratigraphy2015 / p. 91-92

Correlation of the Middle and Upper Ordovician rocks of Baltoscandia using CONOP9: preliminary resultsGoldman, D.; Klosterman, S.L.; Nõlvak, Jaak; Sheets, H.D.; Miller, G.C.The Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 21

Darriwilian (Middle Ordovician) conodont biostratigraphy in NW EstoniaHints, Olle; Viira, Viive; Nõlvak, JaakEstonian journal of earth sciences2012 / p. 210-226 : ill https://kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2012/issue_4/earth-2012-4-210-226.pdf

[delta]13C record of the Upper Ordovician succession of the Borenshult-1 core (Motala, Sweden) and its intracontinental correlationLechnert, O.; Calner, M.; Joachimski, Michael M.; Buggisch, W.; Nõlvak, JaakThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 40

Discovery of rich Katian-Hirnantian jawed polychaete fauna from the Prague Basin, Czech RepublicTonarova, Petra; Vodražkova, Stanislava; Čap, Pavel; Hints, Olle; Nõlvak, Jaak; Kubajko, MichalLille 2021 : Ordovician of the World : programme with abstracts2021 / p. 75-76 https://docplayer.net/219093593-Programme-with-abstracts-2021-virtual-annual-meeting-of-igcp-virtual-annual-meeting-of-igcp-735.html

Distribution of Ordovician chitinozoansNõlvak, Jaak; Bauert, GarmenEstonian geological sections / Geological Survey of Estonia2006 / p. 9-11

Distribution of Ordovician chitinozoansNõlvak, JaakMännamaa (F-367) drill core2008 / p. 13-18 : ill

Early and early Middle Ordovician chitinozoans from the Baldone drill core, central LatviaNõlvak, Jaak; Liang, Yan; Hints, OlleEstonian journal of earth sciences2022 / p. 25-43 : ill https://doi.org/10.3176/earth.2022.03 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Early diversification of chitinozoans on Baltica : new data from northern Estonia and LatviaLiang, Yan; Nõlvak, Jaak; Hints, Olle13th International Symposium on the Ordovician System : Novosibirsk, Russia (July 19-22, 2019) : contributions2019 / p. 119–120 http://www.igcp653.org/wp-content/uploads/2019/07/ISOS13Proceedings.pdf

Early diversification of Ordovician chitinozoans on Baltica : New data from the Jägala waterfall section, northern EstoniaNõlvak, Jaak; Liang, Yan; Hints, OllePalaeogeography, palaeoclimatology, palaeoecology2019 / p. 14-24 : ill https://doi.org/10.1016/j.palaeo.2019.04.002 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Eesti Vabariik : maa. Rahvas. Kultuur : TEA entsüklopeedia eriväljaanneArold, Ivar; Gerndorf, Kostel; Nõlvak, Jaak; Orru, Mall2017 http://www.ester.ee/record=b4648167*est

Eesti Vabariik : maa. Rahvas. Kultuur : TEA entsüklopeedia eriväljaanneArold, Ivar; Gerndorf, Kostel; Nõlvak, Jaak; Orru, Mall2013 https://www.ester.ee/record=b2932447*est

Eesti Vabariik : maa. Rahvas. Kultuur : TEA entsüklopeedia eriväljaanneArold, Ivar; Gerndorf, Kostel; Nõlvak, Jaak; Orru, Mall2014 https://www.ester.ee/record=b3059509*est

Eesti Vabariik 100 : TEA entsüklopeedia eriväljaanneAlatalu, Riin; Engelbrecht, Jüri; Gerndorf, Kostel; Hamburg, Arvi; Lumiste, Rünno; Nõlvak, Jaak; Orru, Mall2017 http://www.ester.ee/record=b4748911*est

Estonian geological sections. Bulletin 3, Valga (10) drill core. /Eesti tugiläbilõiked. Bülletään 3, Valga (10) puursüdamik/ (50 lk, trükiarv 500) : [2001. a. lõpetatud töö referaat]Põldvere, Anne; Kleesment, Anne-Liis; Nõlvak, Jaak; Männik, Peep; Hints, Olle; Meidla, Tõnu; Kiipli, Tarmo; Kallaste, Toivo; Ainsaar, LehoEesti Geoloogiakeskuse aastaraamat 20012002 / lk. 78-79 https://artiklid.elnet.ee/record=b2287178*est

Estonian geological sections. Bulletin 5. Ruhnu (500) Drill core / Eesti tugiläbilõiked. Bülletään 5. Ruhnu (500) puursüdamik/ (76 lk, 1 CD; trükiarv 500) : [2003. a. lõpetatud töö referaat]Einasto, Rein; Jõeleht, Argo; Kaljo, Dimitri; Kiipli, Tarmo; Nõlvak, JaakEesti Geoloogiakeskuse aastaraamat 20032004 / lk. 77 https://artiklid.elnet.ee/record=b2283898*est

Estonian geological sections. Bulletin 6. Mehikoorma (421) Drill core / Eesti tugiläbilõiked. Bülletään 6. Mehikoorma (421) puursüdamik/ (67 lk, 1 CD; trükiarv 500) : [2005. a. lõpetatud töö referaat]Põldvere, Anne; Hints, Linda; Kallaste, Toivo; Kiipli, Tarmo; Kleesment, Anne-Liis; Mark-Kurik, Elga; Lääts, Jaanika; Martma, Tõnu; Männik, Peep; Nõlvak, Jaak; Šogenova, Alla; Viira, ViiveEesti Geoloogiakeskuse aastaraamat 20052006 / lk. 70-71 https://artiklid.elnet.ee/record=b2252828*est

Estonian geological sections. Bulletin 9. Männamaa (F-367) drill core / Eesti geoloogilised läbilõiked. Bülletään 9. Männamaa (F-367) puursüdamik / (55 lk, 1 CD, trükiarv 500)Põldvere, Anne; Aaloe, Aasa; Ainsaar, Leho; Kallaste, Toivo; Kiipli, Tarmo; Meidla, Tõnu; Mens, Kaisa; Niin, Mati; Nõlvak, Jaak; Orlova, Kiira; Suuroja, Kalle; Šogenova, Alla; Šogenov, Kazbulat; Tinn, Oive; Uutela, Anneli; Viira, ViiveEesti Geoloogiakeskuse aastaraamat 20082009 / lk. 71-72 : ill https://www.ester.ee/record=b1223619*est

Estonian geological sections. Bulletin 10. Viki drill core / Eesti geoloogilised läbilõiked. Bülletään 10. Viki puursüdamik / (56 lk, 1 CD, trükiarv 500)Põldvere, Aivar; Kalberg, Anna-Liisa; Kallaste, Toivo; Kiipli, Tarmo; Meidla, Tõnu; Männik, Peep; Nestor, Heldur; Nestor, Viiu-Kai; Nõlvak, Jaak; Plado, Jüri; Schleifer, Norbert; Šogenova, Alla; Šogenov, Kazbulat; Tinn, Oive; Voolma, MargusEesti Geoloogiakeskuse aastaraamat 20102011 / lk. 65-66 : ill

Estonian Soviet Socialist Republic : excursions : 027 hydrogeology of the Baltic. 028 geology and mineral deposits of Lower Palaeozoic of the Eastern Baltic area. GuidebookFreimanis, A.; Hints, Linda; Kaljo, Dimitri; Kink, Hella; Nõlvak, Jaak; Pirrus, Enn-Aavo1984

Facies and sequences of the Vormsi Stage of the East BalticHarris, M.T.; Hints, Linda; Nõlvak, JaakThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 22

Fossilized reproductive modes reveal a protistan affinity of ChitinozoaLiang, Yan; Hints, Olle; Tang, Peng; Cai, Chenyang; Goldman, Daniel; Nõlvak, Jaak; Tihelka, Erik; Pang, Ke; Bernardo, Joseph; Wang, WenhuiGeology2020 / p. 1200-1204 https://doi.org/10.1130/G47865.1 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Geoloogilised retked Tallinnas ja selle lähiümbruses = Geological tours in Tallinn and its environsNõlvak, JaakTallinna geoloogia = Geology of Tallinn2010 / lk. 184-201 : ill https://www.ester.ee/record=b2634906*est

Glacioeustatic karst development in the Late Ordovician of BalticaLehnert, Oliver; Männik, Peep; Nõlvak, Jaak; Kröger, Björn; Joachimski, Michael M.; Calner, Mikael; Bauert, HeikkiIGCP 591 : The Early to Middle Paleozoic Revolution : Closing Meeting, Ghent University, Belgium, 6-9 July 2016 : abstracts2016 / p. 52

High-resolution stratigraphic correlation and biodiversity dynamics of Middle and Late Ordovician marine fossils from Baltoscandia and PolandGoldman, Daniel; Sheets, H. David; Bergström, Stig M.; Nõlvak, Jaak; Podhalanska, TeresaGeoTirol 2016 : Annual Meeting DGGV, 25-28 September 2016, Innsbruck, Austria : abstract volume2016 / p. 87 https://www.uibk.ac.at/geologie/geotirol2016-pangeo/images/abstractvolume.pdf

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

Hotelliehitaja memuaareNõlvak, JaakGeoloogia instituudi kuuskümmend viis aastat : loomine ja muutumised, inimesed ja teadus, meenutused ja suundumused2012 / lk. 246-249 : portr

Hulterstad brachiopods and associated faunas in the Vormsi Stage (Upper Ordovician, Katian) of the Lelle core, Central EstoniaHints, Linda; Hints, Olle; Nemliher, Reet; Nõlvak, JaakEstonian journal of earth sciences2007 / 3, p. 131-142 : ill

Integrated Upper Ordovician–lower Silurian biostratigraphy of the Grötlingbo-1 core section, SwedenMännik, Peep; Loydell, David Kendrick; Nestor, Viiu; Nõlvak, JaakGFF2015 / p. 226 - 244 https://doi.org/10.1080/11035897.2015.1042032 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Kivistised kui varamuNõlvak, JaakMaa ressursid : [7. geoloogia sügiskooli artiklid ja ettekanded]2011 / lk. 32-42

Late Ordovician karst valleys, caves, and breccias of Baltoscandia - a mirror of glacioeustatic sea level changes on a subtropical carbonate shelfLehnert, Oliver; Männik, Peep; Nõlvak, Jaak; Kröger, Björn; Joachimski, Michael M.; Calner, Mikael; Bauert, Heikki; Schmid, RebekkaFossils : Key to evolution, stratigraphy and palaeoenvironments : 87th Annual Conference of the Paläontologische Gesellschaf e. V. : Dresden, September 11-15, 2016 : programme, abstracts, field trip guides2016 / p. 91-92 http://www.palges.de/fileadmin/pdf/Tagung_2016/PalGesDresden_programme_abstracts.pdf

Latest Ordovician age of the Spinachitina fragilis Chitinozoan Biozone in BaltoscandiaNõlvak, Jaak; Liang, Yan; Hints, OlleEstonian journal of earth sciences2023 / p. 82-85 : ill https://doi.org/10.3176/earth.2023.51 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Latest Ordovician jawed polychaetes, chitinozoans and depositional environments of the Levín section, Prague Basin, Czech RepublicTonarová, Petra; Vodrážková, Stanislava; Hints, Olle; Nõlvak, Jaak; Kubajko, Michal; Čáp, PavelGeobios2023 / p. 179-198 : ill https://doi.org/10.1016/j.geobios.2023.01.008 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

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

Latest Sandbian brachiopods and chitinozoan biostratigraphy in North EstoniaHints, Linda; Nõlvak, JaakEstonian journal of earth sciences2023 / p. 42-45 : ill https://doi.org/10.3176/earth.2023.50 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Loodusmälestiste väärtuste hindamisest Pakri poolsaare ja saarte näitelKink, Hella; Erg, Katrin; Miidel, Avo; Nõlvak, Jaak; Raukas, AntoKeskkonnatehnika2002 / lk. 42-44 https://artiklid.elnet.ee/record=b1009019*est

Lower and Middle Ordovician bio- and chemostratigraphy of the Aizpute-41 drill core, LatviaLieffroy, Thibaud; Ainsaar, Leho; Männik, Peep; Meidla, Tõnu; Nõlvak, Jaak; Hints, OlleXI Baltic Stratigraphical Conference : abstracts and field guide2024 / p. 22 https://www.ester.ee/record=b5696260*est https://files.geocollections.info/71c8154a-ede7-4a3a-9989-88de5c5848f6.pdf

Lower and Middle Ordovician chitinozoans from Honghuayuan, South China: Biodiversity patterns and response to environmental changesLiang, Yan; Hints, Olle; Luan, Xiaocong; Tang, Peng; Nõlvak, Jaak; Zhan, RenbinPalaeogeography, palaeoclimatology, palaeoecology2018 / p. 95-105 https://doi.org/10.1016/j.palaeo.2018.04.002 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Maailmajaod. Geograafia. Ajalugu. Kultuur : TEA entsüklopeedia eriväljaanneAmon, Maris; Nõlvak, Jaak2017 http://www.ester.ee/record=b4632072*est

Melanosclerites from the Late Ordovician to earliest Silurian of Estonia and their palaeogeographical implicationsDu, Minghao; Nõlvak, Jaak; Tan, Jingqiang; Gao, Shijia; Wang, WenhuiPalynology2022 / art. 2012538, 16 p. : ill https://doi.org/10.1080/01916122.2021.2012538 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Microfossil dynamics and biostratigraphy in the Väo Formation (Darriwilian) of NW EstoniaKilling, Mairy; Hints, Olle; Nõlvak, Jaak; Vecoli, M.; Viira, ViiveThe Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 35

Middle to Late Ordovician graptolite and chitinozoan biostratigraphy of the Kandava-25 drill core in western LatviaGoldman, Daniel; Nõlvak, Jaak; Maletz, JörgGFF2015 / p. 197 - 211 https://doi.org/10.1080/11035897.2015.1021375 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Mikropaleontoloogia ja biostratigraafia rollist ning ühest tähendusrikkast leiust EestisMeidla, Tõnu; Nõlvak, Jaak; Tinn, OiveTeadusmõte Eestis (VI). Elu- ja maateadused : [artiklikogumik]2011 / lk. 97-115 : ill

More about the Ordovician-Silurian transition beds at Mirny Creek, Omulev Mountains, NE Russia: carbon isotopes and conodontsKaljo, Dimitri; Männik, Peep; Martma, Tõnu; Nõlvak, JaakEstonian journal of earth sciences2012 / p. 277-294 : ill https://artiklid.elnet.ee/record=b2552072*est

Morphological variation of chitinozoans : a case study from the Upper Ordovician Viola Springs Formation, Arbuckle Mountains, Oklahoma, USA [Online resource]Liang, Yan; Nõlvak, Jaak; Goldman, Daniel; Hints, OlleTrekking Across the GOBE : From the Cambrian through the Katian, June 3-7, 2018 : program & abstracts2018 / p. 45 https://igcp653athens2018.files.wordpress.com/2018/05/conference-programabstracts-sm1.pdf

Morphological variation suggests that chitinozoans may be fossils of individual microorganisms rather than metazoan eggsLiang, Yan; Bernardo, Joseph; Goldman, Daniel; Nõlvak, Jaak; Tang, Peng; Wang, Wenhui; Hints, OlleProceedings of the Royal Society B: Biological Sciences2019 / art. 20191270, 8 p. : ill https://doi.org/10.1098/rspb.2019.1270 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

A multiproxy study of the Puhmu core section (Estonia, Upper Ordovician) : consequences for stratigraphy and environmental interpretationKaljo, Dimitri; Hints, Linda; Martma, Tõnu; Nõlvak, JaakEstonian journal of earth sciences2017 / p. 77-92 : ill https://doi.org/10.3176/earth.2017.08 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 https://doi.org/10.3176/earth.2015.28 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

New data on Ordovician stable isotope record and conodont biostratigraphy from the Viki reference drill core, Saaremaa Island, western EstoniaHints, Olle; Martma, Tõnu; Männik, Peep; Nõlvak, Jaak; Põldvere, Anne; Shen, Yanan; Viira, ViiveGFF2014 / p. 100-104 : ill https://doi.org/10.1080/11035897.2013.873989 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

On future directions of Ordovician chitinozoan researchLiang, Yan; Hints, Olle; Nõlvak, Jaak; Tang, PengEstonian journal of earth sciences2023 / p. 58-61 : ill https://doi.org/10.3176/earth.2023.34 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Ordovician chitinozoans of the Miaopo Formation at Zhenjin, Upper Yangtze Platform, South ChinaLiang, Yan; Nõlvak, Jaak; Hints, OllePalynology2024 / art. 2271086, 15 p. : ill https://doi.org/10.1080/01916122.2023.2271086 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Ordovician timescale in Estonia : recent developmentsNõlvak, Jaak; Hints, Olle; Männik, PeepProceedings of the Estonian Academy of Sciences. Geology2006 / 2, p. 95-108

Ordoviikkikausi Virossa ja Edelä-SuomessaNestor, Heldur; Soesoo, Alvar; Linna, Ari; Hints, Olle; Nõlvak, Jaak2006 https://www.ester.ee/record=b2145299*est

Ordoviitsium Eestis ja Lõuna-SoomesNestor, Heldur; Soesoo, Alvar; Linna, Ari; Hints, Olle; Nõlvak, Jaak2006 https://www.ester.ee/record=b2145298*est

Paired carbon isotope chemostratigraphy across the Ordovician–Silurian boundary in central East Baltic: Regional and global signaturesHints, Olle; Ainsaar, Leho; Lepland, Aivo; Liiv, Merlin; Männik, Peep; Meidla, Tõnu; Nõlvak, Jaak; Radzevičius, SigitasPalaeogeography, palaeoclimatology, palaeoecology2023 / art. 111640, 17 p. : ill https://doi.org/10.1016/j.palaeo.2023.111640 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Palaeoecology of floian and dapingian (Ordovician) chitinozoans in South ChinaLiang, Yan; Hints, Olle; Luan, Xiaocong; Servais, Thomas; Nõlvak, Jaak; Tang, Peng; Wu, RongchangThe Fossil Week : Abstract Book : 5th International Palaeontological Congress: IPC5 2018 : Paris, 9th-13th July, 20182018 / p. 850 https://ipc5.sciencesconf.org/data/IPC5_Abstract_Book.pdf

Palaeoenvironmental and biostratigraphical implications of selected Floian and Dapingian (Ordovician) chitinozoans of the South China PalaeoplateLiang, Yan; Hints, Olle; Servais, Thomas; Luan, Xiaocong; Nõlvak, Jaak; Tang, Peng; Wu, Rong-ChangLethaia2018 / 220-231 p. : ill https://doi.org/10.1111/let.12308 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

PaljandidNõlvak, Jaak; Hints, OlleHarjumaa : Paldiski, Pakri poolsaar ja saared2000 / lk. 15-16 https://www.ester.ee/record=b1628563*est

Possible metazoan egg fossils from the Darriwilian (Middle Ordovician) of BaltoscandiaHints, Olle; Nõlvak, Jaak; Liang, YanEstonian journal of earth sciences2021 / p. 240-252 : ill https://doi.org/10.3176/earth.2021.16 Journal metrics at Scopus Article at Scopus

Re-explore the biological affinity of chitinozoans: Evidence from morphological variation and exceptional specimensLiang, Yan; Hints, Olle; Bernardo, Joseph; Goldman, Daniel; Nõlvak, Jaak; Tang, Peng; Wang, WenhuiZooming in on the GOBE : 2020 virtual annual meeting of IGCP 653 : International Geoscience Programme Project 653 : The onset of the Great Ordovician Biodiversification Event, September 7-10, 2020 : Abstracts2020 / p. 33 "Programme"

Reinu quarryHints, Olle; Ainsaar, Leho; Männik, Peep; Meidla, Tõnu; Nõlvak, Jaak; Toom, UrsulaXI Baltic Stratigraphical Conference : abstracts and field guide2025 / p. 145-150 : ill https://www.ester.ee/record=b5696260*est https://files.geocollections.info/1f99d548-322e-4f77-85a7-086886d28cca.pdf

Revision of Ordovician chitinozoan Lagenochitina esthonica sensu lato : morphometrics, biostratigraphy and paleobiogeographyLiang, Yan; Nõlvak, Jaak; Xu, Honghe; Chen, Yansen; Hints, OlleJournal of paleontology2022 / p. 46-60 https://doi.org/10.1017/jpa.2021.79 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

TEA entsüklopeediaEerme, Kalju; Loide, Rein-Karl; Nõlvak, Jaak; Alver, Jaan; Purju, Alari; Kask, Jüri; Kõiv, Teet-Andrus; Mespak, Vello; Metsaveer, Jaan; Mõisnik, Kuulo; Raado, Lembi-Merike; Vain, Jüri2014

TEA entsüklopeediaTulviste, Peeter; Engelbrecht, Jüri; Eerme, Kalju; Loide, Rein-Karl; Nõlvak, Jaak; Christjanson, Peep; Kann, Jüri; Viikna, Anti; Alver, Jaan; Ennuste, Ülo; Gerndorf, Kostel; Abel, Mart; Vene, Varmo; Albri, Rein; Kask, Jüri; Aro, Rein; Kõiv, Teet-Andrus; Mespak, Vello; Metsaveer, Jaan; Mõisnik, Kuulo; Raado, Lembi-Merike; Reinsalu, Enno; Vares, Villu; Kaasik, Imbi2008 https://www.ester.ee/record=b2408734*est

TEA entsüklopeediaTulviste, Peeter; Engelbrecht, Jüri; Eerme, Kalju; Loide, Rein-Karl; Nõlvak, Jaak; Christjanson, Peep; Kann, Jüri; Viikna, Anti; Alver, Jaan; Gerndorf, Kostel; Abel, Mart; Vene, Varmo; Aro, Rein; Mespak, Vello; Metsaveer, Jaan; Raado, Lembi-Merike; Reinsalu, Enno; Sinivee, Veljo; Vares, Villu; Kaasik, Imbi2009 https://www.ester.ee/record=b2465036*est

TEA entsüklopeediaTulviste, Peeter; Engelbrecht, Jüri; Eerme, Kalju; Loide, Rein-Karl; Nõlvak, Jaak; Christjanson, Peep; Kann, Jüri; Viikna, Anti; Alver, Jaan; Gerndorf, Kostel; Purju, Alari; Abel, Mart; Vene, Varmo; Aarna, Olav; Kõiv, Teet-Andrus; Mespak, Vello; Metsaveer, Jaan; Mõisnik, Kuulo; Vares, Villu; Nuuma, Poigo2009 https://www.ester.ee/record=b2503851*est

TEA entsüklopeediaTulviste, Peeter; Engelbrecht, Jüri; Eerme, Kalju; Loide, Rein-Karl; Nõlvak, Jaak; Christjanson, Peep; Gerndorf, Kostel; Purju, Alari; Mespak, Vello; Metsaveer, Jaan; Mõisnik, Kuulo; Vares, Villu; Raado, Lembi-Merike; Reinsalu, Enno; Sinivee, Veljo; Kaasik, Imbi; Nuuma, Poigo2009 https://www.ester.ee/record=b2542726*est

TEA entsüklopeedia2010 https://www.ester.ee/record=b2607773*est

TEA entsüklopeedia2011 https://www.ester.ee/record=b2666688*est

TEA entsüklopeedia2011 https://www.ester.ee/record=b2712813*est

TEA entsüklopeedia2012 https://www.ester.ee/record=b2772002*est

TEA entsüklopeedia2012 https://www.ester.ee/record=b2869027*est

TEA entsüklopeedia2013 https://www.ester.ee/record=b2925120*est

The geology of the Malingen structure : a probable doublet to the Lockne marine-target impact crater, central SwedenOrmö, J.; Sturkell, Erik; Nõlvak, JaakMeteoritics & planetary science2014 / p. 313-327 : ill https://doi.org/10.1111/maps.12251 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

The Great Ordovician Biodiversification Event: Linked to phytoplankton evolution or to asteroid impacts?Servais, T.; Hints, Olle; Kröger, Björn; Nõlvak, Jaak; Vecoli, M.; Wallin, A.The Seventh Baltic Stratigraphical Conference : 17-18 May 2008, Tallinn, Estonia : abstracts & field guide2008 / p. 63

The Guttenberg carbon isotope excursion (GICE; Ordovician) in EstoniaBauert, Heikki; Hints, Olle; Bauert, Garmen; Nõlvak, Jaak; Ainsaar, Leho; Martma, Tõnu10th Baltic Stratigraphic Conference : Checiny, 12-14 September 2017 : abstracts and field guide2017 / p. 13-14 : ill http://geo.uw.edu.pl/tl_files/publikacje/10th_Baltic_Stratigraphic_Conference_Abstracts_and_Field_Guide.pdf

The late Sandbian/Early Katian carbonate succession in the eastern St.Petersburgregion: the stratigraphic record in the Krapivno The late Sandbian/Early Katian carbonate succession in the eastern St. Petersburg region: the stratigraphic record in the Krapivno 21 drill core 21 drill coreHints, Linda; Lehnert, Oliver; Nõlvak, Jaak; Männik, Peep; Pärnaste, Helje; Joachimski, Michael M.XI Baltic Stratigraphical Conference : abstracts and field guide2024 / p. 13 https://www.ester.ee/record=b5696260*est https://files.geocollections.info/16c906be-0636-4d30-95fe-065c76cc887a.pdf

The Lockne-Målingen doublet impact structure : a marine impact by a binary asteroidOrmö, J.; Sturkell, E.; Alwmark, C.; Nõlvak, Jaak; Melero-Asensio, I.; Lepinette, A.; Frisk, A.; Holm, S.; Wikström, T.31st Nordic Geological Winter Meeting : Lund, Sweden, January 8-10 20142014 / p. 165

The lower boundary of the Haljala Regional Stage (Sandbian, Upper Ordovician) in EstoniaPaiste, Tõnn; Männik, Peep; Nõlvak, Jaak; Meidla, TõnuEstonian journal of earth sciences2020 / p. 76–90 : ill https://doi.org/10.3176/earth.2020.05 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

The Pirgu Regional Stage (Upper Ordovician) in the East Baltic : lithostratigraphy, biozonation, and correlationHints, Linda; Oraspõld, Asta; Nõlvak, JaakProceedings of the Estonian Academy of Sciences. Geology2005 / 4, p. 225-259 : ill

The succession of Hirnantian events based on data from Baltica : brachiopods, chitinozoans, conodonts, and carbon isotopesKaljo, Dimitri; Hints, Linda; Männik, Peep; Nõlvak, JaakEstonian journal of earth sciences2008 / 4, p. 197-218 : ill https://artiklid.elnet.ee/record=b1076635*est

Unikaalsed fossiilid - muistse elu jäljed Tallinna aluspõhjas = Unique fossils - traces of ancient life in the bedrock of TallinnNõlvak, JaakTallinna geoloogia = Geology of Tallinn2010 / lk. 82-89 : ill https://www.ester.ee/record=b2634906*est

Upper Katian (Ordovician) bentonites in the East Baltic, Scandinavia and Scotland Geochemical correlation and volcanic source interpretationKiipli, Tarmo; Dahlqvist, Peter; Kallaste, Toivo; Kiipli, Enli; Nõlvak, JaakGeological Magazine2015 / p. 589 - 602 https://doi.org/10.1017/S001675681400051X Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Upper Middle to lower Upper Ordovician chitinozoans and conodonts from the Bliudziai-150 core, southern LithuaniaStouge, Svend; Bauert, Garmen; Bauert, Heikki; Nõlvak, Jaak; Rasmussen, Jan A.Canadian journal of earth sciences2016 / p. 781-787 : ill https://doi.org/10.1139/cjes-2015-0205 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

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 https://doi.org/10.3176/earth.2016.08 https://artiklid.elnet.ee/record=b2778909*est Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS