A review of ichnofossils from Estonian palaeontological collectionsToom, Ursula; Vinn, Olev; Hints, Olle10th Baltic Stratigraphic Conference : Checiny, 12-14 September 2017 : abstracts and field guide2017 / p. 82-83 http://geo.uw.edu.pl/tl_files/publikacje/10th_Baltic_Stratigraphic_Conference_Abstracts_and_Field_Guide.pdf

Ichnogenus Trypanites in the Ordovician of Estonia (Baltica)Toom, Ursula; Kuva, Jukka; Knaust, DirkEstonian journal of earth sciences2023 / p. 106-109 : ill https://doi.org/10.3176/earth.2023.48

Middle Jurassic Zoophycos and Chondrites from the Mélah Formation of Saharan Atlas, AlgeriaMekki, Fayça; Zhang, Li-Jun; Vinn, Olev; Toom, UrsulaEstonian journal of earth sciences2019 / p. 190-198 : ill https://doi.org/10.3176/earth.2019.13 http://www.kirj.ee/public/Estonian_Journal_of_Earth_Sciences/2019/issue_4/earth-2019-4-190-198.pdf Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Ordovician and Silurian trace fossils of Estonia = Ordoviitsiumi ja Siluri ajastu jäljekivistised EestisToom, Ursula2019 https://digikogu.taltech.ee/et/Item/e8c71b8a-d696-4ef1-aa09-70f6543a5e6f

Possible drill holes and pseudoborings in obolid shells from the Cambrian/Ordovician boundary beds of Estonia and the uppermost Cambrian of NW RussiaVinn, Olev; Holmer, Lars E.; Wilson, Mark A.; Isakar, Mare; Toom, UrsulaHistorical Biology : An International Journal of Paleobiology2021 / p. 3579-3584 https://doi.org/10.1080/08912963.2021.1878355 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

The trace fossil Zoophycos from the Silurian of EstoniaVinn, Olev; Toom, UrsulaEstonian journal of earth sciences2015 / p. 284-288 : ill https://artiklid.elnet.ee/record=b2750892*est