Microcheilinella affinis Polenova 1955
Description
Microcheilinella cf. affinis Polenova, 1955
(Pl. III: Fig. 12)
cf.1955 Microcheilinella affinis nov. sp.; Polenova: pl. 9, fig. 3.
cf. 2013 Microcheilinella affinis Polenova; Maillet: 139, pl. XVIII, fig. 26. 2013 Microcheilinella cf. affinis Polenova; Maillet: 140, pl. XVIII, fig. 31. cf. 2013 Microcheilinella aff. affinis Polenova; Casier in Casier & Préat: 488, pl. V, fig. 6.
Material. 17 specimens (14 C, 3 V).
Description. Small ovoidal carapace. Overlap of the larger LV over the RV along whole outline, more pronounced ventrally than dorsally with a marked bow-shaped projection. Hmax at 2/3 posterior; Lmax slightly ventral; Wmax at 2/3 posterior. Well rounded dorsal and ventral margins. Dorsal and ventral margins almost symmetrical and clearly converging anteriorly, more slightly posteriorly. Posterior margin describing a large regular bow. Convex anterior margin, sharper than the posterior one. Posterior part of the carapace higher than anterior one. Surface smooth.
Discussion. These specimens show a smaller carapace, with a more arched anterior margin, than the one of Microcheilinella affinis Polenova, 1955.
Occurrences. Middle Givetian (Candás Fm, mbs A, B and C), Asturias (Peran-Perlora section).
Other
Published as part of Maillet, Sebastien, Milhau, Bruno, Vreulx, Michel & Posada, Luis-Carlos Sánchez De, 2016, Givetian ostracods of the Candás Formation (Asturias, North-western Spain): taxonomy, stratigraphy, palaeoecology, relationship to global events and palaeogeographical implications, pp. 1-78 in Zootaxa 4068 (1) on pages 46-47, DOI: 10.11646/zootaxa.4068.1.1, http://zenodo.org/record/270644Files
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: 10.11646/zootaxa.4068.1.1 (DOI)
- Journal article: http://zenodo.org/record/270644 (URL)
- Journal article: http://publication.plazi.org/id/FF803441E84C4B75FFB5FFFBFFF3FFE8 (URL)
- Journal article: http://zoobank.org/80E89736-33F2-4FF5-9B01-8B7239407875 (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/03B94C39E8614B5BFF22F898FB09FD74 (URL)
Biodiversity
- Family
- Pachydomellidae
- Genus
- Microcheilinella
- Kingdom
- Animalia
- Order
- Podocopida
- Phylum
- Arthropoda
- Scientific name authorship
- Polenova
- Species
- affinis
- Taxon rank
- species
- Taxonomic concept label
- Microcheilinella affinis Polenova, 1955 sec. Maillet, Milhau, Vreulx & Posada, 2016
References
- Polenova, E. N. (1955) Devonian ostracods of the Volga Ural area. Trudy Vsesouznogo neftyanogo Naucno - Issledovatel'skogo Geologo-Razvedocnogo Instituta (VNIGRI), Novaa Seria, 87, 191 - 287. [in Russian]