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The Silurian Lagoon, Artist’s depiction of Silurian life of the Saint John Group

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Colour image of water and colourful fish
painting: The Silurian Lagoon, Artist’s depiction of Silurian life of the Saint John Group, 1995. J. Pennanen, watercolour. Our Changing Earth, New Brunswick Museum. The shallow ocean environment represented by the Cunningham Creek Formation was populated by giant shark-like thelodonts (top) that may have fed on large number of tiny phyllocarid crustaceans (foreground). Anaspid fish similar to modern lamprey (right) and tiny jawless heterostracan fish (centre and right) are represented by single fossil specimens. A fossil interpreted as a crab-like animal depicted to the left is now known to be the partial remains of a giant sea scorpion (eurypterid).