2808756 Tom found a fossil. Hybrid 1 25341 Fossil fuels won't be available forever. CK 1 32325 He is a living fossil! CM 3001458 Tom is interested in fossils. CK 25343 Fossil fuel prices shot through the roof. NekoKanjya 45479 The continent is abundant in fossil fuels. CK 246809 What I have in my hand is a fossil seashell. CM 1846542 Fossil fuels are the main causes of global warming. LanguageExpert 2601295 What I'm holding in my hands is a fossilized shell. AlanF_US