Biodiversity Literature Repository
Published October 2, 2014 | Version v1
Taxonomic treatment Open

Conchocele Gabb 1866

Creators

  • 1. National Museum of Wales, Cathays Park, Cardiff, CF 10 3 NP, Wales, UK. E-mail: graham. oliver @ museumwales. ac. uk
  • 2. Royal BC Museum, 675 Belleville Street, Victoria, British Columbia V 8 W 9 W 2 Canada. E-mail: mfrey @ royalbcmuseum. bc. ca

Description

Genus Conchocele Gabb, 1866

Type species. Conchocele disjuncta Gabb, 1866, = C. bisecta (Conrad, 1849) after Kamenev et al. 2001.

Type locality. C. disjuncta: Pliocene, Dead Man's Island, San Pedro, California; C. bisecta: Miocene, Astoria, Oregon.

Species included. C. bisecta (Conrad, 1849), C. novaeguinensis Okutani, 2002,

Tertiary fossil taxa in Krishtofovitch (Kamchatka), Thyasira conradi Rosenkrantz, 1942 (Svalbard).

Diagnosis. Medium to very large shells. Equivalve. Inequilateral, prosogyrous beaks close to anterior, outline obliquely oval. Anterior margin sloping steeply, almost straight; anterior area defined by a distinct keel; lunule weakly impressed approximately half the length of the anterior area. Posterior margin broadly rounded and indented by a single sinus; posterior sulcus deep, distinctly angulated; escutcheon weakly defined; no distinct marginal sulcus. Anterior adductor muscle scar greatly elongate. Hinge teeth lacking. Ligament partially sunken.

Anterior adductor muscle much longer than posterior; mantle unfused except for a small exhalant aperture; foot vermiform; ctenidia of two fully reflected demibranchs, filaments highly modified with the abfrontal zone divided into a tubular framework and a laminar zone with regular inter-lamellar junctions; tubes lined with bacteriocytes; lateral body pouches densely arborescent.

Notes

Published as part of Oliver, P. Graham & Frey, Melissa A., 2014, Ascetoaxinus quatsinoensis sp. et gen. nov. (Bivalvia: Thyasiroidea) from Vancouver Island, with notes on Conchocele Gabb, 1866, and Channelaxinus Valentich-Scott & Coan, 2012, pp. 452-468 in Zootaxa 3869 (4) on pages 465-466, DOI: 10.11646/zootaxa.3869.4.8, http://zenodo.org/record/4947378

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Linked records

Additional details

Identifiers

URL
http://treatment.plazi.org/id/A462AF16B9704C1ACBBBB388672917E0

Is part of
Journal article: 10.11646/zootaxa.3869.4.8 (DOI)
Journal article: http://zenodo.org/record/4947378 (URL)
Journal article: http://publication.plazi.org/id/585BD76EB97D4C14CB2CB5446424164D (URL)
Journal article: http://zoobank.org/EE91053B-A15A-4A1F-866E-D23BA7F79D58 (URL)
Is source of
https://sibils.text-analytics.ch/search/collections/plazi/A462AF16B9704C1ACBBBB388672917E0 (URL)
https://www.gbif.org/species/183719054 (URL)
https://www.checklistbank.org/dataset/5322/taxon/A462AF16B9704C1ACBBBB388672917E0.taxon (URL)

Biodiversity

Family
Thyasiridae
Genus
Conchocele
Kingdom
Animalia
Order
Lucinoida
Phylum
Mollusca
Scientific name authorship
Gabb
Taxon rank
genus
Type status
holotype
Taxonomic concept label
Conchocele Gabb, 1866 sec. Oliver & Frey, 2014

References

  • Gabb, W. M. (1866) Description of the Tertiary invertebrate fossils. California Geological Survey, Paleontology, 2 (1), part 1, 1 - 38.
  • Conrad, T. A. (1849) Fossils from the northwestern America. In: Dana, J. D. (Ed.), U. S. Exploring Expedition, 1838 - 1842, Under the Command of Charles Wilkes. Vol. 10. Geology, Appendix. G. P. Putnam, New York, pp. 723 - 729.
  • Kamenev, G. M., Nadtochy, V. A. & Kuznetsov, A. P., (2001) Conchocele bisecta (Conrad, 1849) (Bivalvia: Thyasiridae) from cold-water methane rich areas of the Sea of Okhotsk. The Veliger, 44, 84 - 94.
  • Okutani, T. (2002) A new thyasirid Conchocele novaeguineensis n. sp. from a thanatocoenosis associated with a possible cold seep activity off New Guinea. Venus, 61, 141 - 145.
  • Rosenkrantz, A. (1942) Slregten Thyasira's geologiske Optraeden. Meddelelser fra Dansk Geologisk Forening, 10, 277 - 278.