Revised descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990)
| | Revised descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990) |
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  (Pl. 52a): Volupicuna n.sp.; GS10365, D45/f8598, Long Beach Shellbed, Clifden Section, Waiau River (Altonian) (right hinge showing small subumbonal resilifer). |
  (Pl. 52c): Volupicuna n.sp.; GS10365, D45/f8598, Long Beach Shellbed, Clifden Section, Waiau River (Altonian) |
 (Pl. 52d): Volupicuna n.sp.; GS10365, D45/f8598, Long Beach Shellbed, Clifden Section, Waiau River (Altonian) |
Beu & Maxwell (1990): Chapter 17; p. 376; pl. 52 a,c,d.
Classification: Condylocardiidae
Description: Height 1.3—3.0 mm, trigonal, robust, equilateral to subequilateral with long, steeply descending dorsal margins. Sculpture of few, broad, low radial costae (obsolete in some species) and growth ridges. Hinge triangular, left valve with narrow anterior and posterior cardinal teeth, right valve with a narrowly triangular median tooth. Anterodorsal margin on left valve, and posterodorsal margin on right valve fitting into corresponding grooves on opposite valve. Both valves with a very small resilifer at top of hinge.
Comparison: Most of the New Zealand condylocardiids previously referred to Cuna (which has prominent commarginal sculpture) belong in Volupicuna (see Powell 1979, p. 411).
Distribution: Otaian-Recent, New Zealand; Recent, south-eastern Australia. Recorded from shelf and upper bathyal assemblages.
Cite this publication as: "A.G. Beu and J.I. Raine (2009). Revised
descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990). GNS
Science miscellaneous series no. 27."
© GNS Science, 2009
ISBN
978-0-478-19705-1
ISSN 1177-2441
(Included with a PDF facsimile file
copy of New Zealand Geological Survey Paleontological Bulletin 58 in CD version
from: Publications Officer, GNS Science, P.O. Box 30368 Lower Hutt, New
Zealand)