Wikipedia:WikiProject Palaeontology/Paleozoic-Mesozoic time line

CretaceousJurassicTriassicPermianCarboniferousDevonianSilurianOrdovicianCambrianLate CretaceousEarly CretaceousLate JurassicMiddle JurassicEarly JurassicLate TriassicMiddle TriassicEarly TriassicLate PermianMiddle PermianEarly PermianPennsylvanianMississippianLate DevonianMiddle DevonianEarly DevonianPridoliLudlowWenlockLlandoveryLate OrdovicianMiddle OrdovicianEarly OrdovicianLate CambrianMiddle CambrianEarly CambrianLambeosaurus magnicristatusHypacrosaurus sternbergiVagaceratops irvinensisStyracosaurus albertensisLambeosaurus lambeiDaspletosaurusProsaurolophus maximusPanoplosaurus mirusChasmosaurus belliGryposaurus incurvimanusCentrosaurus apertusGryposaurus notabilisEuoplocephalus tutusGorgosaurus libratusParasaurolophus walkeriCorythosaurus casuariusEdmontonia rugosidensChasmosaurus russelliCentrosaurus brinkmaniDyoplosaurus acutosquameusCretaceousJurassicTriassicPermianCarboniferousDevonianSilurianOrdovicianCambrianLate CretaceousEarly CretaceousLate JurassicMiddle JurassicEarly JurassicLate TriassicMiddle TriassicEarly TriassicLate PermianMiddle PermianEarly PermianPennsylvanianMississippianLate DevonianMiddle DevonianEarly DevonianPridoliLudlowWenlockLlandoveryLate OrdovicianMiddle OrdovicianEarly OrdovicianLate CambrianMiddle CambrianEarly Cambrian