Trace marks on the bones of non-avian dinosaurs may relate to feeding by large carnivores or as a result of combat. Here the cranium and mandible of a specimen of Daspletosaurus are described that show numerous premortem injuries with evidence of healing and these are inferred to relate primarily to intraspecific combat. In addition. postmortem damage to the mandible is indicative of ... https://www.pomyslnaszycie.com/rivet-sweat-charcoal-on-sale/