Seductorithyris Sandy & Hryniewicz & Hammer & Nakrem & Little 2014, gen. nov.

Genus Seductorithyris gen. nov. Diagnosis. Round outline, with the dorsal valve almost circular. Profile equi- to gently ventribiconvex. Smooth shell with growth lines. Erect beak. Ventral valve umbo keeled. Lateral commissure straight, anterior commissure rectimarginate. Internal structures: cardin...

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Bibliographic Details
Main Authors: Sandy, Michael R., Hryniewicz, Krzysztof, Hammer, Øyvind, Nakrem, Hans Arne, Little, Crispin T. S.
Format: Text
Language:unknown
Published: Zenodo 2014
Subjects:
Biodiversity
Taxonomy
Animalia
Brachiopoda
Rhynchonellata
Terebratulida
Loboidothyrididae
Seductorithyris
Svalbard
Spitsbergen
Online Access:https://dx.doi.org/10.5281/zenodo.4952583
https://zenodo.org/record/4952583
Description
Summary:Genus Seductorithyris gen. nov. Diagnosis. Round outline, with the dorsal valve almost circular. Profile equi- to gently ventribiconvex. Smooth shell with growth lines. Erect beak. Ventral valve umbo keeled. Lateral commissure straight, anterior commissure rectimarginate. Internal structures: cardinal process present, flat/horizontal and wide hinge plates deflect dorsally, crural bases develop on inner margin of hinge plates, clubbed and weakly deflected dorsally. Transverse band curved, low-arched, and approximately at mid-point of brachidium, anterior flanges long. Etymology. For the deceptive way that homoeomorphy among brachiopods may mask their affinities (deceiver—latin seductor ). Occurrence. Uppermost Ryazanian of Spitsbergen. Type species. Seductorithyris septemtrionalis sp. nov. : Published as part of Sandy, Michael R., Hryniewicz, Krzysztof, Hammer, Øyvind, Nakrem, Hans Arne & Little, Crispin T. S., 2014, Brachiopods from Late Jurassic-Early Cretaceous hydrocarbon seep deposits, central Spitsbergen, Svalbard, pp. 501-532 in Zootaxa 3884 (6) on page 522, DOI: 10.11646/zootaxa.3884.6.1, http://zenodo.org/record/4951742

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