Earliest Petroxestes borings from Sandbian (earliest late ordovician) bryozoans of Northern EstoniaVinn, Olev; Ernst, Andrej; Toom, UrsulaPalaios2019 / p. 453-457 https://doi.org/10.2110/palo.2019.054 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS