A new genus and species of Thyasiridae (Mollusca, Bivalvia) from deep-water, Beaufort Sea, northern Alaska

Bivalve mollusk shells were collected in 2350 m depth in the Beaufort Sea, Arctic Ocean off northern Alaska. Initial identification suggested the specimens were a member of the bivalve family Thyasiridae, but no known eastern Pacific or Arctic living or fossil thyasirid resembled these deep-water sp...

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Bibliographic Details
Published in:ZooKeys 2014-01, Vol.462 (462), p.11-26
Main Authors: Valentich-Scott, Paul, Powell, Charles L, Ii, Lorenson, Thomas D, Edwards, Brian E
Format: Article
Language:English
Subjects:
Bivalvia
Fossils
New genera
New species
New taxa
Physical characteristics
Shells
Thyasiridae
Zoology
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Description
Summary:Bivalve mollusk shells were collected in 2350 m depth in the Beaufort Sea, Arctic Ocean off northern Alaska. Initial identification suggested the specimens were a member of the bivalve family Thyasiridae, but no known eastern Pacific or Arctic living or fossil thyasirid resembled these deep-water specimens. Comparisons were made with the type of the genera Maorithyas Fleming, 1950, Spinaxinus Oliver & Holmes, 2006, Axinus Sowerby, 1821, and Parathyasira Iredale, 1930. We determined the Beaufort Sea species represents a new genus, herein described as Wallerconcha. These specimens also represent a new species, herein named Wallerconchasarae. These new taxa are compared with known modern and fossil genera and species of thyasirds.
ISSN:1313-2989
1313-2970
DOI:10.3897/zookeys.462.6790