Strandoceras

Systematic Paleontology

Order Discosorida

Family Cyrtobomphoceratidae

Genus Strandoceras

Strandoceras is a cyrtomphoceratid from the middle and upper Ordovician of Europe, its shell endogastric and laterally compressed. The body chamber is straighter and more narrow than the chambered phragmocone. The siphuncle is close to the venter, which is narrowly rounded; septal necks with short brims, connecting rings thick. Bullettes, formed where the siphuncle segments attach to the septal foramina (openings) are large. The aperture is open; the hyponomic sinus, shallow.

Strandoceras, which has its origin in Ulrichoceras or similar genus, may have given rise to Kiaerocers and Cyrtogomphoceras and maybe to Landeroceras, as well as to the Phragmoceratidae.

A benthic carnivore, like its probable ancestor Ulrichoceras, Strandoceras probably lived face down prowling the sea floor or hovering close above.