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The buchanosteid placoderms are best known from the Early Devonian of Australia, but also occur in China, Russia, Central Asia and the Middle East. Here we rediagnose the type species Buchanosteus confertituberculatus (Hills 1936) from the type locality at Buchan, Victoria, in the light of new...
This introduction presents various aspects of the life of Richard (Dick) Essex Barwick. Dick’s research included herpetology, functional anatomy, evolutionary biology and Arctic exploration, and sets the scene for the papers presented in this special issue that cover these various areas. Dick is...
A small collection of arthrodire remains is described from the Devonian Aztec Siltstone of southern Victoria Land, Antarctica. Barwickosteus antarcticus, gen. et sp. nov., is a small phlyctaeniid arthrodire probably closely related to Barrydalaspis from the Bokkeveld Group of South Africa....
Photographic and videographic investigations of the aerodynamic performance of four captive adult Acrobates pygmeus are described. During short (14m) glides, steep angles of descent (>45) and large angles of attack (up to 50) were used mid-flight, and the possums failed to achieve steady...
The evolution of the Dipnoi is displayed in the Early Devonian in south-eastern Australia. The main points at issue are as follows. (a) The development of the tubercles in the two-layered rostral region of the skull. (b) The nerves ophthalmicus profundus V and opthalmicus superficialis VII, and...
Here I show how fitness landscapes can be used to understand the relative importance of developmental and ecological change in initiating morphological innovation. Key is the use of morphogenetic rules as the axes of the landscape, which enables explicit incorporation of the contribution that...
There is increasing concern about the global decline of amphibians and reptiles. One problem with documenting declines and identifying underlying causes is the absence of historical data to compare to current data. Here we provide historic data for Kioloa on the south-eastern coast of New South...
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