A crustoid graptolite lithoimmured inside a Middle Ordovician nautiloid conch from Northern EstoniaVinn, Olev; Wilson, Mark A.; Toom, UrsulaAnnales societatis geologorum Poloniae2019 / p. 285-290 : ill https://doi.org/10.14241/asgp.2019.17 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Hulterstad brachiopods and associated faunas in the Vormsi Stage (Upper Ordovician, Katian) of the Lelle core, Central EstoniaHints, Linda; Hints, Olle; Nemliher, Reet; Nõlvak, JaakEstonian journal of earth sciences2007 / 3, p. 131-142 : ill