Earliest symbiotic rugosans in cystoporate bryozoan Ceramopora intercellata Bassler, 1911 from Late Ordovician of Estonia (Baltica)Vinn, Olev; Ernst, Andrej; Toom, UrsulaPalaeogeography, palaeoclimatology, palaeoecology2016 / p. 140-144 : ill https://doi.org/10.1016/j.palaeo.2016.08.016 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Intergrowth of Orbignyella germana Bassler, 1911 (Bryozoa) and Lambelasma carinatum Weyer, 1993 (Rugosa) in the pelmatozoan-bryozoan-receptaculitid reefs from the Late Ordovician of EstoniaVinn, Olev; Toom, Ursula; Ernst, AndrejPalaeontologia electronica2018 / art. 21.1.4A, 7 p : ill https://doi.org/10.26879/818 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS

Symbiosis between bryozoans with erect cribrate colonies and rugose corals from the lower Katian (Upper Ordovician) of EstoniaVinn, Olev; Ernst, Andrej; Wilson, Mark A.; Toom, UrsulaCarnets de géologie2025 / 8 p. : ill https://doi.org/10.2110/carnets.2025.2506 http://paleopolis.rediris.es/cg/25/06/index.html Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS