Lenticulella Hansen & Holmer 2011, gen. nov.

Genus Lenticulella gen. nov. Derivation of name Latin ‘ lenticularis ’, lens-shaped; refers to the lens-shaped outline. Type species. Lingulella amphora Krause & Rowell, 1975; Middle Ordovician, Dapingian; Nevada, western Newfoundland and Spitsbergen. Diagnosis. Small dorsibiconvex obolinid with...

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Bibliographic Details
Main Authors: Hansen, Jesper, Holmer, Lars E.
Format: Text
Language:unknown
Published: Zenodo 2011
Subjects:
Biodiversity
Taxonomy
Animalia
Brachiopoda
Lingulata
Lingulida
Obolidae
Lenticulella
Shallow Bay
Ny Friesland
Median Ridge
Factory Cove
Valhallfonna
Newfoundland
Spitsbergen
Online Access:https://dx.doi.org/10.5281/zenodo.5243616
https://zenodo.org/record/5243616
Description
Summary:Genus Lenticulella gen. nov. Derivation of name Latin ‘ lenticularis ’, lens-shaped; refers to the lens-shaped outline. Type species. Lingulella amphora Krause & Rowell, 1975; Middle Ordovician, Dapingian; Nevada, western Newfoundland and Spitsbergen. Diagnosis. Small dorsibiconvex obolinid with lenticular outline; exterior smooth except for fine growth lines; shallow pedicle groove raised above valve floor; obscure or weakly impressed visceral area with weak median ridge in anterior part; valve floor not pitted. Remarks. Lenticulella gen. nov. is comparable only with Ovolingula Mergl, 1998 from Bohemia. Ovolingula is, however, distinguished by the presence of minute pseudointerareas with narrow pedicle groove and especially by the highly raised dorsal muscle platform and thin median septum/ridge. Species assigned. Lingulella amphora Krause & Rowell, 1975; Middle Ordovician ( Orthidiella zone, Dapingian), Antelope Valley Formation, Meiklejohn Peak, Nevada; Middle Ordovician (Dapingian), Factory Cove Member, Shallow Bay Formation, western Newfoundland; Profilbekken Member, Valhallfonna Formation, northeastern Ny Friesland, Spitsbergen. : Published as part of Hansen, Jesper & Holmer, Lars E., 2011, Taxonomy and biostratigraphy of Ordovician brachiopods from northeastern Ny Friesland, Spitsbergen 3076, pp. 1-122 in Zootaxa 3076 (1) on page 16, DOI: 10.11646/zootaxa.3076.1.1, http://zenodo.org/record/5243500 : {"references": ["Krause, F. F. & Rowell, A. J. (1975) Distribution and systematics of the inarticulate brachiopods of the Ordovician carbonate mud mound of Meiklejohn Peak, Nevada. The University of Kansas Paleontological Contributions, Article, 61, 1 - 74, 12 pls.", "Mergl, M. (1998) Generic status of two lingulacean brachiopods from the Kraluv Dvur Formation, Upper Ordovician (Central Bohemia). V e stnik C eskeho geologickeho ustavu, 73 (3), 223 - 228."]}

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