1592-1655 1596-1650 17thcentury 550 900 agent(philosophy) b1887 britishcolumbia burgessshale cambrian cambriangeologicperiod canada civilization contingence(philosophie) contributionsinmechanicalphilosophydescartes contributionsinmechanicalphilosophygassendi cosmology criticismandinterpretationdescartes descartes ensnecessarium evolución evolutie evolution extinction(biologie) extinction(biology) fossielen fossil fossiles fossilinvertebrates fossils freewillanddeterminism french gassendi geology god histoire historicalgeology history historyofdoctrines humanbeings humanevolution imaginaryhistories influence invertebratefossils invertebrates invertébrésfossiles kontingenz life lifesciences methodology migrations naturalhistory necessity(philosophy) ongewerveldedieren ontological paleontologie paleontology paléontologie philosophie philosophy philosophyofnature pierre proof providenceandgovernmentofgod rationalism reason rené schalies science shale stratigraphic will world worldhistory yohonationalpark évolution