Eosomichelinoceras, Chen, 1974

Kröger, Björn & Pohle, Alexander, 2021, Early-Middle Ordovician cephalopods from Ny Friesland, Spitsbergen - a pelagic fauna with Laurentian affinities, European Journal of Taxonomy 783 (1), pp. 1-102 : 58

publication ID	https://doi.org/10.5852/ejt.2021.783.1601
publication LSID	lsid:zoobank.org:pub:071EAD63-05ED-4D6C-AC45-8719E6D79E0B
DOI	https://doi.org/10.5281/zenodo.5793570
persistent identifier	https://treatment.plazi.org/id/5F4487AC-FF95-FF97-FDC7-7D99FAAB7995
treatment provided by	Felipe (2021-12-20 14:11:22, last updated 2024-11-26 01:11:36)
scientific name	Eosomichelinoceras
status

Treatment

Genus Eosomichelinoceras J.-Y. Chen, 1974

Type species

Eosomichelinoceras huananense J.-Y. Chen, 1974, from the Middle Ordovician of Southwest China; by original designation.

Diagnosis

Smooth or transversally striated, slender, orthoconic baltoceratids with narrow, tubular siphuncle. Siphuncle is eccentric with rSP of more than 0.2, and with rSD ≈ 0.2 or less. Septal necks are orthochoanitic. Endosiphuncular or cameral deposits are not known (adopted from Kröger et al. 2007).

References

Kroger B., Beresi M. & Landing E. 2007. Early orthoceratoid cephalopods of the Argentine Precordillera (Lower - Middle Ordovician). Journal of Paleontology 81: 1266 - 1283. https: // doi. org / 10.1666 / 06 - 013.1