• New camerate crinoid genera from the Upper Ordovician (Katian) of Estonia: evolutionary origin of family Opsiocrinidae and a phylogenetic assessment of Ordovician MonobathridaCole, Selina R.; Toom, UrsulaJournal of systematic palaeontology2019 / p. 597-611 : ill https://doi.org/10.1080/14772019.2018.1447519 https://www.scopus.com/sourceid/5000155901 https://www.scopus.com/record/display.uri?eid=2-s2.0-85044475507&origin=inward&txGid=8a3d30c51c90d97039b5e69cb09792b4 https://jcr.clarivate.com/jcr-jp/journal-profile?journal=J%20SYST%20PALAEONTOL&year=2022 https://www.webofscience.com/wos/woscc/full-record/WOS:000461902500003