Synopsis A limestone boulder from the Benan Conglomerate (low Caradoc Series?) of the Girvan district yielded a few fossils of North American aspect, including Clelandia reliqua sp. nov., which are indicative of an early Canadian (Tremadoc) age. It is suggested that the boulder originated from a shallow-water limestone deposited on a land-mass on the SE margin of the Dalradian trough.
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Rushton et al. (1979) studied this question.
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