The rock slab containing the Nautiloids is a sandstone with an unusually high percentage of quartz, and mica classified as siliciclastic sandstone formed probably from re-worked volcanic ash. Large fossils in this kind of material are extremely rare
No EXIF information is available
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Keywords:brachiopods, cephalopods, cumbria, fossils, lake district, mica, national trust, nautiloids, ordovician, orthis, orthocone, sandstones, siliciclastic, siliclastic, silurian
