. "P(DE06P04OMG009), P(GA205/09/0260), P(GA205/09/0703), Z(MZP0002579801)" . . . . "2"^^ . . "10"^^ . "A minute Silurian oncocerid Cyrtoceras pollux, from Bohemia is assigned here to the genus Pomerantsoceras. The only so far known species of this genus comes from Ordovician of Estonia. Pomerantsoceras thus represents, except for un-revised poorly understood taxa, the single known oncocerid genus surviving the end-Ordovician extinction events. Colour pattern characterised by a few longitudinal bands on the entire circumference of the shell is here reported in oncocerids. Longicone and only slightly curved small shells as in Pomerantsoceras are unusual among nautiloids and resemble straight shells of orthocerids and pseudorthocerids, in which the colour pattern consists of straight colour bands. Consequently the shell shape as well as the colour pattern should be regarded as adaptive convergence with orthocerids and pseudorthocerids. It supports the hypothesis that colour pattern functioned as camouflage and its evolution was under adaptive control."@en . . . . . . "RIV/00023272:_____/09:#0001101!RIV10-MK0-00023272" . "A minute Silurian oncocerid Cyrtoceras pollux, from Bohemia is assigned here to the genus Pomerantsoceras. The only so far known species of this genus comes from Ordovician of Estonia. Pomerantsoceras thus represents, except for un-revised poorly understood taxa, the single known oncocerid genus surviving the end-Ordovician extinction events. Colour pattern characterised by a few longitudinal bands on the entire circumference of the shell is here reported in oncocerids. Longicone and only slightly curved small shells as in Pomerantsoceras are unusual among nautiloids and resemble straight shells of orthocerids and pseudorthocerids, in which the colour pattern consists of straight colour bands. Consequently the shell shape as well as the colour pattern should be regarded as adaptive convergence with orthocerids and pseudorthocerids. It supports the hypothesis that colour pattern functioned as camouflage and its evolution was under adaptive control." . "326464" . . "Minute Silurian oncocerid nautiloids with unusual colour patterns" . "3" . . "000270574400013" . "Minute Silurian oncocerid nautiloids with unusual colour patterns"@en . . . . . "54" . . . . "Acta Palaeontologica Polonica" . "Cephalopoda; Nautiloidea; taxonomy; colour pattern; shell size; shell malformation; Silurian"@en . . . "Turek, Vojt\u011Bch" . "Minute Silurian oncocerid nautiloids with unusual colour patterns"@en . . . "1"^^ . "RIV/00023272:_____/09:#0001101" . "Minute Silurian oncocerid nautiloids with unusual colour patterns" . "Manda, \u0160t\u011Bp\u00E1n" . "PL - Polsk\u00E1 republika" . "0567-7920" . "[A6348367DD39]" .