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Stromatolite: Archaeozoon acadiense Matthew


Colour image of gray rock with light gray circles
Stromatolite: Archaeozoon acadiense Matthew. Precambrian. Green Head, Saint John, New Brunswick. Collector: W. Murdoch, 1890. New Brunswick Museum (NBMG 3200). Image width 19 cm. A magnified image of a stromatolite collected by William Murdoch. The structures built by successive mats of cyanobacteria and layers of sediment are easily seen. These stromatolites were built as ‘cabbage-shaped’ mounds in the shallow ocean.