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145–66 MYA
Cretaceous
The longest and most diverse dinosaur chapter — Tyrannosaurus, Triceratops, and the feathered maniraptorans that gave rise to birds all appear here, ending abruptly.
How it ends
Cretaceous–Paleogene extinction
An asteroid impact ends the reign of every non-avian dinosaur. One dinosaur lineage — birds — survives to this day.
Genera from this era
1,290 cataloguedSauroniopsInosaurusMantellodonAstrodonNurosaurusEuhelopusHelopusYuanchuavisFalcariusVectidromeusShanagNqwebasaurusEmbasaurusDollodonProornisAstrodontoniusAegyptosaurusSuchosaurusMantellisaurusNuthetesCarcharodontosaurusBihariosaurusTriunfosaurusParanthodon
See all 1,290 in the full index →