Silurian
pl: Silurians
Related Words
paleontologygeologystratigraphyperiodepocheracambrianordoviciandevoniancarboniferouspermiantriassicjurassiccretaceouspaleozoicmesozoiccenozoicfossilsedimentstratumrockshalelimestonesandstonebedrocktrilobitebrachiopodcrinoidgraptolitecephalopodgastropodbivalveostracodconodontplacodermagnathanfishvascular plantbryophytesporeevolutionextinctionbiodiversityoceansea levelcoastlinecontinentgondwanalaurentiatectonicsglaciationclimateatmosphereoxygencarbonmineraldepositionerosionchronologygeologic timeprehistoricancientprimordialbiotafaunaflora