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. 53d); Brookula (Brookula) pukeuriensis Finlay, 1924; GS9520, J41/f8029, Awamoa Creek, North Otago (Altonian) |
 (Pl. 53g); Brookula (Brookula) pukeuriensis Finlay, 1924; GS9520, J41/f8029, Awamoa Creek, North Otago (Altonian) |
Beu & Maxwell (1990): Chapter 17; p. 376; pl. 53 d,g.
Classification: Chilodontidae
Description: Diameter 0.9-1.5 mm, turbiniform, spire depressed or elevated, narrowly or widely umbilicate; whorls rounded, inflated. Sculpture of prominent axial costae and finer interstitial spiral cords or threads. Aperture circular, peristome continuous.
Comparison: Brookula (sensu stricto) has a low, blunt spire and relatively wide umbilicus; the subgenus Brookula (Aequispirella) Finlay, 1924 has a higher, more pointed spire and is narrowly umbilicate. Liotella Iredale, 1915 is superficially similar to Brookula (sensu stricto) but has a very depressed or even sunken spire.
Distribution: Mangaorapan?; Kaiatan-Recent, New Zealand; Recent, Kermadec Islands, Australia, Antarctica. Possibly very widespread, as such minute gastropods have been studied little as yet.
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)