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First Aspidorhynchidae (Pisces: Teleostei) from Antarctica

Published online by Cambridge University Press:  14 May 2004

Martha Richter  and
M.R.A. Thomson
Martha Richter
Affiliation:
Museu de Ciências, Pontifícia Universidade Católica do Rio Grande do Sul, Av. Ipiranga 6681, CEP: 90620 Porto Alegre, RS, Brazil
M.R.A. Thomson
Affiliation:
British Antarctic Survey, Natural Environment Research Council, High Cross, Madingley Road, Cambridge CB3 0ET, UK
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Abstract

A new fossil teleost, belonging to the family Aspidorhynchidae Nicholson & Lydekker, Aspidorhynchus antarcticus sp. nov., was obtained from a block of reworked Upper Jurassic tuffaceous mudstone in the lower (Albian) part of the mid-Cretaceous Whisky Bay Formation of James Ross Island, Antarctic Peninsula. Additional material, assignable to Aspidorhynchus sp., was collected from in situ Upper Jurassic marine rocks (Nordenskjöld Formation) at Longing Gap, northern Antarctic Peninsula. Not only is this the first reported occurrence of the family from Antarctica, it is also the first unequivocal record of Aspidorhynchus outside Europe; prior to this discovery, the genus had only been reported with certainty in marine deposits from the Middle Jurassic to Lower Cretaceous of England, France and Germany. This is the earliest neopterygian fish so far recovered from marine rocks in the Antarctic.

Keywords

TeleosteiAspidorhynchusUpper Jurassicnorthern Antarctic Peninsula
Type
Papers—Earth Sciences and Glaciology
Information
Antarctic Science , Volume 1 , Issue 1 , March 1989 , pp. 57 - 64
Copyright
© Antarctic Science Ltd 1989

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