Larvae and imagos of insects eat wood with their mandibles. This creates galleries just below the cambium, on the wood’s surface and throughout the wood. Different insect species burrow different shapes of galleries (12.1-12.3). However, the anatomical structure is mostly unspecific (12.4-12.7). Since galleries in historical wood mainly destroyed the sapwood, and especially the most recent rings, it is often difficult to date these samples by dendrochronological means.
KeywordsSecondary Wall Fossil Wood Demarcation Line Norway Spruce Pinus Mugo
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