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• First record of the trace fossil Oikobesalon from the Ordovician (Darriwilian) of BalticaVinn, Olev; Toom, UrsulaEstonian journal of earth sciences2014 / p. 118-121 : ill https://artiklid.elnet.ee/record=b2673778*est https://doi.org/10.3176/earth.2014.11 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-84901656345&origin=inward&txGid=60bff8c107105a49838ed18dfcc1bcbe https://jcr.clarivate.com/jcr-jp/journal-profile?journal=EST%20J%20EARTH%20SCI&year=2014 https://www.webofscience.com/wos/woscc/full-record/WOS:000337664400007
• Possible metazoan egg fossils from the Darriwilian (Middle Ordovician) of BaltoscandiaHints, Olle; Nõlvak, Jaak; Liang, YanEstonian journal of earth sciences2021 / p. 240-252 : ill https://doi.org/10.3176/earth.2021.16 https://www.scopus.com/sourceid/6000195392 https://www.scopus.com/record/display.uri?eid=2-s2.0-85121114552&origin=inward&txGid=b312c6e68c745aae407face5c91fe57d