Lawrenceoceras Ulrich, Foerste, Miller & Unklesbay 1944

• Main Authors: Kröger, Björn, Pohle, Alexander
• Format: Text
• Language: unknown
• Published: Zenodo 2021
• Subjects: Biodiversity; Taxonomy; Animalia; Mollusca; Cephalopoda; Ellesmerocerida; Bassleroceratidae; Lawrenceoceras; Canada; Ny Friesland; Spitsbergen
• Online Access: https://dx.doi.org/10.5281/zenodo.5793434; https://zenodo.org/record/5793434

Genus Lawrenceoceras Ulrich, Foerste, Miller & Unklesbay, 1944 Type species Lawrenceoceras collinsi Ulrich, Foerste, Miller & Unklesbay, 1944 from boulders at Point Levis, Levis County, Quebec, Canada (presumably late Floian); by original designation. Diagnosis Smooth, slender, cyrtocones with elliptically depressed cross section. Sutures directly transverse, with very shallow, broad dorsal and ventral lobes. Siphuncle small, about 0.1 of conch diameter, on convex side of conch, almost marginal in position. Siphuncular segments cylindrical or nearly so (compiled from Ulrich et al. 1944). : Published as part of Kröger, Björn & Pohle, Alexander, 2021, Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities, pp. 1-102 in European Journal of Taxonomy 783 (1) on page 10, DOI: 10.5852/ejt.2021.783.1601, http://zenodo.org/record/5793422 : {"references": ["Ulrich E. O., Foerste A. F., Miller A. K. & Unklesbay A. G. 1944. Ozarkian and Canadian cephalopods. Part III: Longicones and summary. Geological Society of America Special Papers 58: 1 - 226. https: // doi. org / 10.1130 / SPE 58"]}