...ROBERT W. MORRIS; STEPHEN H. FELTON Abstract The stems of once-living Ordovician crinoids, especially the genera Ectenocrinus , Iocrinus , and Cincinnaticrinus , provided suitable attachment sites for the growth and development of both individuals and clusters of Cornulites —a tubiculous...

...OLEV VINN; HARRY MUTVEI Abstract The following differences were found between the members of the cornulitids, Cornulites and Conchicolites . Both genera have egg-shaped embryonic shells, which presumably calcified after the settling of larva to the substrate, but the embryonic shells in Cornulites...

...OLEV VINN; ANDREJ ERNST; URSULA TOOM Abstract Three species of trepostome bryozoans formed syn vivo associations with the Cornulites in the Late Ordovician of Estonia. Cornulites sp. and Mesotrypa excentrica presumably formed a true symbiotic association. This is the first known case of symbiosis...

...OWEN A. DIXON Abstract Conoidal shells of Cornulites celatus n. sp. occur commonly within host coralla of Propora conferta Milne-Edwards and Haime, 1851 , sensu lato, from the Laframboise Member of the Ellis Bay Formation (Ashgill: Upper Ordovician) at Pointe Laframboise on western Anticosti Island...

...Jean Pillet Abstract Describes two new species of tubicolous annelids from Devonian localities of the Armorican massif, France--Conchicolites devoniensis from Emsian deposits and Cornulites? andegavensis from upper Siegenian deposits. The genera Cornulites, Conchicolites, Cornulitella, and Kolihaia...