Parabuchanosteus murrumbidgeensis is an extinct buchanosteid arthrodire placoderm. Its fossils have been found in the Late Emsian-aged marine strata of the Murrumbidgee Group in New South Wales, Australia.
It was originally described as Buchanosteus murrumbidgeensis in 1952. In 1972, it was re-examined and promoted to a new genus.
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