Neoschizodus laevigatus ...

Neoschizodus laevigatus (Goldfuss, 1837) (Fig. 9) Material. Five specimens from LD-04 (NHMUK PI MB 1251; NHMUK PE PEI 5489; NHMUK PE PEI 5519; NHMUK PE PEI 5522), and eight specimens from LD-05 (NHMUK PE PEI 5476–5477; NHMUK PE PEI 5499; NHMUK PE PEI 5501; NHMUK PE PEI 5518; NHMUK PE PEI 5521). Fift...

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Bibliographic Details
Main Authors: Foster, William J., Danise, Silvia, Twitchett, Richard J.
Format: Text
Language:unknown
Published: Zenodo 2016
Subjects:
Biodiversity
Taxonomy
Animalia
Mollusca
Bivalvia
Trigoniida
Myophoriidae
Neoschizodus
Neoschizodus laevigatus
Silvia
Svalbard
Online Access:https://dx.doi.org/10.5281/zenodo.10903526
https://zenodo.org/doi/10.5281/zenodo.10903526
Description
Summary:Neoschizodus laevigatus (Goldfuss, 1837) (Fig. 9) Material. Five specimens from LD-04 (NHMUK PI MB 1251; NHMUK PE PEI 5489; NHMUK PE PEI 5519; NHMUK PE PEI 5522), and eight specimens from LD-05 (NHMUK PE PEI 5476–5477; NHMUK PE PEI 5499; NHMUK PE PEI 5501; NHMUK PE PEI 5518; NHMUK PE PEI 5521). Fifty-nine prodissoconch valves from LD-04 (NHMUK PI MB 1252; NHMUK PI MB 1254; NHMUK PI MB 1255–1260; NHMUK PE PEI 5480; NHMUK PE PEI 5484; NHMUK PE PEI 5486; NHMUK PE PEI 5511; NHMUK PE PEI 5513; NHMUK PE PEI 5520), and 14 prodissoconch valves from LD-05 (NHMUK PI MB 1253; NHMUK PE PEI 5514). Description. Shell is trigonally subovate, equivalve, inflated below the umbo, inequilateral, slightly higher than long. Umbo is small and orthogyrate, with an elevated, subangular to rounded, umbonal ridge. Indistinct posterior ridge. Anterodorsal margin recurvate, passing to widely arched ventral margin, posterodorsal margin straight, entire inner margin smooth. Smooth sculpture except for faint concentric growth lines. The ... : Published as part of Foster, William J., Danise, Silvia & Twitchett, Richard J., 2017, A silicified Early Triassic marine assemblage from Svalbard, pp. 851-877 in Journal of Systematic Palaeontology 15 (10) on pages 864-865, DOI: 10.1080/14772019.2016.1245680, http://zenodo.org/record/10883052 ...

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