The quarry supports a moth fauna which includes at least two species, the northern rustic, Standfussiana lucernea, and the anomalous wainscot, Stilbia anomala, that are rare in north-east England.
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Where a skeletal soil layer has developed on the quarry floor and spoil heaps, patches of grassland occur, with species characteristic of base-rich soils, such as quaking grass, Briza media, and limestone bedstraw, Galium sterneri.
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