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 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

Diverse endobiotic symbiont fauna from the late Katian(Late Ordovician) of EstoniaVinn, Olev; Wilson, Mark A.; Holmer, Lars E.; Ernst, Andrej; Tinn, Oive; Toom, UrsulaPalaeontologia Electronica2022 / art. a31, 13 p. : ill https://doi.org/10.26879/1232 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Emended Sandbian (Ordovician) conodont biostratigraphy in Baltoscandia and a new species of AmorphognathusPaiste, Tõnn; Männik, Peep; Meidla, TõnuGeological magazine2022 / p. 1-17 : map https://doi.org/10.1017/S0016756822001005

First description of rare Teichichnus burrows from carbonate rocks of the Lower Paleozoic of EstoniaVinn, Olev; Toom, UrsulaCarnets de geologie2018 / p. 305-312 : ill https://doi.org/10.4267/2042/68550 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Hirnantia sagittifera (Brachiopoda) and Mucronaspis mucronata s.l. (Trilobita) in the Upper Ordovician of the East Baltic : taxonomy and distributionHints, Linda; Pärnaste, Helje; Gailite, Lilita-IlgaEstonian journal of earth sciences2012 / p. 65-81 : ill https://www.researchgate.net/publication/258439664_Hirnantia_sagittifera_Brachiopoda_and_Mucronaspis_mucronata_sl_Trilobita_in_the_Upper_Ordovician_of_the_East_Baltic_Taxonomy_and_distribution

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

Sandbian (Late Ordovician) conodonts in Estonia : distribution and biostratigraphyPaiste, Tõnn; Männik, Peep; Meidla, TõnuGFF2022 / p. 9-23 : ill https://doi.org/10.1080/11035897.2021.2020333 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Symbiosis in brachiopods and brachiopod-attached trepostome bryozoans from the Katian of EstoniaVinn, Olev; Ernst, Andrej; Wilson, Mark A.; Tinn, Oive; Isakar, Mare; Toom, UrsulaNeues Jahrbuch für Geologie und Paläontologie - Abhandlungen2023 / p. 41−50 http://doi.org/10.1127/njgpa/2023/1111

Symbiosis of cornulitids and bryozoans in the Late Ordovician of Estonia (Baltica)Vinn, Olev; Ernst, Andrej; Toom, UrsulaPalaios2018 / p. 290-295 : ill https://doi.org/10.2110/palo.2018.018 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

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

Towards a revised Sandbian conodont biozonation of BalticaPaiste, Tõnn; Männik, Peep; Stouge, Svend; Meidla, TõnuEstonian journal of earth sciences2023 / p. 153 https://doi.org/10.3176/earth.2023.07

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