Buttsoceras Ulrich & Foerste 1936
- Dataset
- Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities
- Rank
- GENUS
Classification
- phylum
- Mollusca
- class
- Cephalopoda
- order
- Orthocerida
- family
- Troedssonellidae
- genus
- Buttsoceras
diagnosis
Diagnosis Slender orthocones with circular or subcircular cross section, and large subcentral siphuncles; siphuncular segments are tubular and composed of short, straight necks and thin, homogeneous connecting rings; a lamellar lining within the siphuncle thickens apically and either fills the siphuncle completely or leaves a narrow cavity dorsad of center that may be crossed by diaphragms; both hyposeptal and episeptal cameral deposits are known to develop (adopted from Hook & Flower 1977).
type_taxon
Type species Orthoceras? adamsi Butts, 1926, from the Odenville Limestone (late Floian – early Dapingian), near Odenville, St. Clair County, Alabama, USA; by original designation.
Name
- Homonyms
- Buttsoceras Ulrich & Foerste 1936