Evolution of a Katian tropical hardgroundToom, Ursula; Kröger, Björn; Knaust, Dirk; Moghalu, Ogechukwu Ann; Vöröš, Dominik; Vodrážková, StanislavaXI Baltic Stratigraphical Conference : abstracts and field guide2024 / p. 39 https://www.ester.ee/record=b5696260*est https://files.geocollections.info/95c3f9cd-1a5f-428b-a1a6-517682aced9d.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 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Two almost-forgotten Trypanites ichnospecies names for the most common Palaeozoic macroboringKnaust, Dirk; Dronov, Andrei V.; Toom, UrsulaPapers in palaeontology2023 / art. e1491, 17 p. : ill https://doi.org/10.1002/spp2.1491 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

A Balanoglossites-Trypanites ichnofabric from the Upper Ordovician warm-water carbonates of EstoniaToom, Ursula; Kröger, Björn; Knaust, DirkFollowing in the footsteps of Richard Granville Bromley : abstracts and field guide2023 / p. 38 : ill https://www.researchgate.net/publication/375450713_Following_in_the_footsteps_of_Richard_Granville_Bromley_abstracts_and_field_guide_17th_International_Ichnofabric_Workshop_23-29_October_2023_in_Faxe_Denmark