Orbiculoidea d’Orbigny, 1847

Foster, William J., Danise, Silvia & Twitchett, Richard J., 2017, A silicified Early Triassic marine assemblage from Svalbard, Journal of Systematic Palaeontology 15 (10), pp. 851-877 : 854

publication ID

https://doi.org/ 10.1080/14772019.2016.1245680

publication LSID

lsid:zoobank.org:pub:3EBCAEF3-27C2-4216-9F18-89F195FA534F

DOI

https://doi.org/10.5281/zenodo.10883064

persistent identifier

https://treatment.plazi.org/id/C53B0B4D-8054-E82F-6C01-FCD48FE522CA

treatment provided by

Felipe

scientific name

Orbiculoidea d’Orbigny, 1847
status

 

Genus Orbiculoidea d’Orbigny, 1847 View in CoL

Type species. Orbicula forbesii Davidson, 1848 ; Silurian , Wenlock; West Midlands, England .

Diagnosis. The generic diagnosis follows Mergl (2006). Shell thin, strongly dorsibiconvex, subcircular, with subtrapezoidal outline of the posterior part. Ornament on both valves composed of regular raised concentric fila separated by broader interspaces. Dorsal valve is conical to subconical with subcentral apex; ventral valve with subcentral apex. Ventral valve depressed conical with subcentral apex. Pedicle track narrow, tapering posteriorly and anteriorly closed by shallow listrium; foramen in posterior end of listrium with short internal tube.

Kingdom

Animalia

Phylum

Brachiopoda

Class

Lingulata

Order

Lingulida

Family

Discinidae

GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF