The Mesozoic, or "Middle Life", Era is commonly called the Age of Dinosaurs. It began with the catastrophic Permian/Triassic mass extinction, and was truncated by the Cretaceous/Tertiary mass extinction, and is composed of the Triassic, Jurassic, and Cretaceous Periods.
This category is for any website dealing with the fossil record of the Mesozoic.
Any website dealing with life in the Mesozoic may be submitted to this category, but websites dealing with specific fossil Mesozoic taxa should be submitted to the appropriate vertebrate, invertebrate, plant, or microfossil category instead. Websites about specific fossil localities should be submitted to the appropriate category in: