Published December 20, 2021
| Version v1
Taxonomic treatment
Open
Eosomichelinoceras Chen 1974
Creators
- 1. Finnish Museum of Natural History, University of Helsinki, PO Box 44, FI- 00014 Helsinki, Finland.
- 2. Paläontologisches Institut und Museum, University of Zurich, Zurich, Switzerland.
Description
Genus Eosomichelinoceras J.-Y. Chen, 1974 Type species
Eosomichelinoceras huananense J.-Y. Chen, 1974, from the Middle Ordovician of Southwest China; by original designation.
DiagnosisSmooth 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).
Notes
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 58, DOI: 10.5852/ejt.2021.783.1601, http://zenodo.org/record/5793422
Files
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Linked records
Additional details
Identifiers
Biodiversity
- Family
- Baltoceratidae
- Genus
- Eosomichelinoceras
- Kingdom
- Animalia
- Order
- Orthocerida
- Phylum
- Mollusca
- Scientific name authorship
- Chen
- Taxon rank
- genus
- Taxonomic concept label
- Eosomichelinoceras Chen, 1974 sec. Kröger & Pohle, 2021
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