New Bothriolepis (Antiarchi: Placodermi) from the Braidwood region, New South Wales, Australia (Middle-Late Devonian)

WA Museum Records and Supplements | Updated 9 years ago

Abstract - Bothriolepis longi sp. nov., from the Comerong volcanics (MiddleLate Devonian) in the Budawang Range synclinorium near Braidwood (southeastern New South Wales), is the third species of Bothriolepis to be formally described from New South Wales. Bothriolepis longi resembles species from Victoria, Australia and the Aztec Siltstone, Antarctica (GivetianFrasnian), and certain unnamed species from the Frasnian of Western Australia. A preliminary phylogenetic analysis considers three possible positions for the new species in a previously published cladogram for species of Bothriolepis. A close relationship to several Antarctic species is suggested. Correlation between southeastern Australia and the Aztec sequence of Antarctica is discussed. The Aztec sequence may be younger than previously proposed.