New Zealand Journal of Geology and Geophysics abstracts

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The bivalve genus Grammatodon from the Middle Jurassic of the Catlins district, South Otago, New Zealand

RONALD N. GARDNER

21A Ferner Street
Dallington
Christchurch, New Zealand

HAMISH J. CAMPBELL

Institute of Geological & Nuclear Sciences
P.O. Box 30 368
Lower Hutt, New Zealand

Abstract  The bivalve genus Grammatodon is described from the Temaikan Stage (Middle Jurassic; Aalenian to Callovian) of South Otago, New Zealand. It is represented by three new species of the subgenus Indogrammatodon, and one described species of the subgenus Cosmetodon. An overview of the stratigraphy and associated paleontology is provided for the five principal locations where species of Grammatodon have been collected. Paleobiogeography is discussed in general terms. Interpretations based on taxonomic features are given for the mode of life of the Indogrammatodon species.

Keywords  Temaikan Stage; Jurassic; New Zealand; Tethyan; Grammatodon; Indogrammatodon; Cosmetodon; autecology; paleogeography; paleontology

New Zealand Journal of Geology and Geophysics, 1997, Vol. 40: 487-498

0028-8306/97/4004-0487 $7.00/0 (c) The Royal Society of New Zealand 1997

PDF file of entire paper: medium quality (2633K); (scanned from paper original: notes about this process)

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