New Zealand Journal of Geology and Geophysics abstracts

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A Glyptagnostus stolidotus trilobite fauna from the Cambrian of northern Victoria Land, Antarctica

James B. Jago

School of Natural and Built Environments
University of South Australia
Mawson Lakes, South Australia 5095, Australia

Roger A. Cooper^*

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

^*Author for correspondence.

Abstract  A taxonomically diverse trilobite assemblage from the Spurs Formation of northern Victoria Land with the globally distributed zone fossil Glyptagnostus stolidotus, is of Mindyallan age (early Late Cambrian). Sixteen taxa are recorded from Antarctica for the first time, including the new species Hadragnostus helixensis, Liostracina simesi, Leichneyella variosa, Meteoraspis nevensis, and Catillicephala glasgowensis, plus two new genera and species, Noregaspis frigidus and Carrosella alberti. Altogether, 11 agnostoid and 30 polymerid taxa are described. The assemblage shows strong taxonomic affinity with Mindyallan faunas of Queensland, Australia. The Mindyallan age of the uppermost beds of the Spurs Formation at Helix Pass is established.

Keywords  trilobites; northern Victoria Land; Antarctica; Late Cambrian; Spurs Formation; Bowers Supergroup

G05016; Received 22 April 2005; accepted 10 August 2005; Online publication date 13 October 2005
New Zealand Journal of Geology & Geophysics, 2005, Vol. 48: 661–681
0028–8306/05/4804–0661© The Royal Society of New Zealand 2005

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