Abstract
The oldest shark teeth so far recorded from Australia are described from the Early-Middle Devonian of western Queensland. The teeth show characters in common with those of the Jurassic-Recent hexanchoid sharks, and the possible relationship to these so-called ‘living fossils’ is discussed. The teeth are ascribed to a new species, Mcmurdodus whitei, of a genus found previously in the Middle-Late Devonian of Antarctica. Scales and prismatic cartilage found in the Cravens Peak Beds probably belong to this shark.
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