GNS Science

Revised descriptions of New Zealand Cenozoic Mollusca from Beu and Maxwell (1990)

New Zealand Cenozoic Mollusca

Globisinum crassiliratum Finlay, 1926


(Pl. 15h): GS9517, Campbell Park School, Waitaki Valley, Waitakian (GNS)

Beu & Maxwell (1990): Chapter 10; p. 159; pl. 15 h.

Synonymy: Globisinum crassiliratum Finlay 1926b, p. 230

Classification: Naticidae: Globisininae

Description: Small for genus (height 11-14 mm), globose, spire relatively elevated. Protoconch depressed dome-shaped, of about 2.5 smooth whorls. Teleoconch whorls strongly convex, sutures distinctly impressed. Sculpture of relatively prominent, rounded or flat-topped spiral cords with some interstitial threads, crossed by growth lines and ridges. Inner lip almost straight, parietal callus rather thick. Umbilicus relatively broad.

Comparison: Globisinum crassiliratum is readily distinguished from other species of Globisinum (particularly G. miocaenicum, which also occurs at the first two localities) by its small size, its relatively high spire, its markedly coarser spiral sculpture and its rather wide umbilicus.

Distribution: Duntroonian-Waitakian; Otekaike Limestone, Trig Z, Otiake, Waitakian (type); Campbell Park School, Otekaike; Wharekuri Greensand, Wharekuri.

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)


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