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Fish: Doliodus problematicus (Woodward)

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Colour images of fossilized fish and bones
Fish: Doliodus problematicus (Woodward). Devonian. Atholville, New Brunswick. Collector: J. McGovern and R.F. Miller, 1997. New Brunswick Museum (NBMG 10127). Image width (left) 16 cm. Sharks probably evolved in the Silurian Period, although their early fossil record consists only of isolated scales and teeth. Doliodus problematicus was first described in 1897 from New Brunswick from a single tooth. This specimen is the oldest, most complete shark fossil in the world.