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"...The mechanical stress caused by boulderers damages rock vegetation locally on climbing holds and is one of the impacts induced by climbing. Even moderate frequency and no prior cleaning of routes can lead to longer lasting damage to cliff vegetation. In sensitive areas, appropriate management a...

"Orthoceratoid cephalopods are common in the Palaeozoic rock record but went extinct in the Late Triassic. Many orthoceratoids contain cameral deposits, which are enigmatic calcareous structures within their chambered shell that presumably balanced their straight conchs in a horizontal position. Si...