Lankide:Theklan/Proba orria: berrikuspenen arteko aldeak

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|rowspan="30" style="background:{{garaiaren kolorea|Mesozoiko}}"| [[Mesozoic]]

|style="background:{{garaiaren kolorea|Maastrichtian}}"| [[Maastrichtian]]

|rowspan="12"| [[Flowering plant]]s proliferate, along with new types of [[insect]]s. More modern [[teleost]] fish begin to appear. [[Ammonoidea]], [[Belemnoidea|belemnites]], [[rudist]] [[Bivalvia|bivalve]]s, [[Echinoidea|echinoid]]s and [[Porifera|sponges]] all common. Many new types of [[dinosaur]]s (e.g. [[Tyrannosauridae|Tyrannosaurs]], [[Titanosauridae|Titanosaurs]], [[Hadrosauridae|duck bills]], and [[Ceratopsidae|horned dinosaurs]]) evolve on land, as do [[Eusuchia]] ([[Crocodilia|modern crocodilians]]); and [[mosasaur]]s and modern [[shark]]s appear in the sea. Primitive birds gradually replace [[pterosaurs]]. [[Monotremes]], [[marsupial]]s and [[Eutheria|placental]] mammals appear. Break up of [[Gondwana]]. Beginning of [[Laramide Orogeny|Laramide]] and [[Sevier Orogeny|Sevier Orogenies]] of the [[Rocky Mountains]]. [[Atmosphere of Earth|atmospheric]] CO₂ close to present-day levels.