New Zealand Journal of Geology and Geophysics abstracts
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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