Weejasperaspis is an extinct acanthothoracid placoderm found in the Wee Jasper reef, of the Early Devonian-aged Murrumbidgee Group in eastern New South Wales, Australia and the type species is W. gavini.White, E. I. (1978). The larger arthrodiran fishes from the area of Burrinjuck Dam, N. S. W. Transactions of the Zoological Society of London 34: 149–262. Weejasperaspis differs from other acanthothoracids in that the median dorsal crest is short, and triangular-shaped. Its sister genus, Murrindalaspis, differs from it by having large, blade-like median dorsal crests that are recurved. Like Murrindalaspis, it is only known from a dorsal plate and ossified eyeballs.
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