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Print/export Download as PDF; ... Cretaceous. P a l e o g e n e. Neogene. P a l e o c e n e. E o c e n e. O l i g o c e n e. ... Subdivision of the Paleogene ...
Print/export Download as PDF; ... Cretaceous. Paleogene. ↓ Quaternary. Neogene. Subdivision of the Phanerozoic according to the ICS, ...
A study aiming to quantify the habitat of latest Cretaceous North American dinosaurs, based on data from fossil occurrences and climatic and environmental modelling, and evaluating its implications for inferring whether dinosaur diversity was in decline prior to the Cretaceous–Paleogene extinction event, was published by Chiarenza et al ...
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c. 143.1 Ma – End of Jurassic and beginning of Cretaceous Period. c. 145 Ma – First mantises. c. 140 Ma – Earliest orb-weaver spiders evolve. c. 130 Ma – Laurasia and Gondwana begin to split apart as the Atlantic Ocean forms. First flowering plants. Earliest anglerfish.
Plant fossils are common in both the Late Cretaceous and early Paleocene portions of the Edmonton Group. [7] Remains of Triceratops and other dinosaurs are found in the Late Cretaceous portion, especially the Horseshoe Canyon Formation and the lower part of the Scollard Formation. Molluscs such as Ostrea and Unio are found in both portions. [1]