Abstract
Abstract Boulders containing a well preserved fauna (brachiopods, corals, tentaculitids, crinoids, gastropods, and bryozoans of Early Devonian (Emsian) age are dispersed through outwash and morainic deposits of the Otiran Loopline Formation, and in gravels derived from them, between Lake Haupiri and Nelson Creek, North Westland, New Zealand. The faunas and the matrix suggest derivation from sediments similar to the Reefton Group cropping out in the Reefton district 40 km north of Lake Haupiri. From the distribution of the fossiliferous boulders, the likely source is to the west of Trig. Z, between Lakes Haupiri and Ahaura, where thick morainic deposits may conceal a faulted outlier of Reefton Group sediments.
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