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Map of North America During the Late Cretaceous. During the Cretaceous, the present North American continent was isolated from the other continents. In the Jurassic, the North Atlantic already opened, leaving a proto-ocean between Europe and North America. From north to south across the continent, the Western Interior Seaway started forming.
Page:Tyrannosaurus and Other Cretaceous Carnivorous Dinosaurs.pdf/8 Metadata This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
Print/export Download as PDF; Printable version; In other projects Wikidata item; Appearance. ... Subdivision of the Cretaceous according to the ICS, as of 2023. [1]
Print/export Download as PDF; Printable version; In other projects ... Dinosaurs of the Cretaceous Period, existing/appearing during the latter Mesozoic Era
The largest dinosaur known from Brazil Austroraptor: 2008 Allen Formation (Late Cretaceous, Campanian to Maastrichtian) Argentina: Possessed an elongated snout paralleling that of spinosaurids Baalsaurus: 2018 Portezuelo Formation (Late Cretaceous, Turonian to Coniacian) Argentina: Had a squared-off dentary with its teeth crowded to the front ...
Laramidia was an island continent that existed during the Late Cretaceous period (99.6–66 Ma), when the Western Interior Seaway split the continent of North America in two. In the Mesozoic era, Laramidia was an island land mass separated from Appalachia to the east by the Western Interior Seaway. It was home to many dinosaurs including ...
Dinosaurs evolved from more primitive reptiles in the aftermath of Earth's biggest mass-extinction event caused by extreme volcanism at the end of the Permian Period about 252 million years ago.
The Maastrichtian (/ m ɑː ˈ s t r ɪ k t i ə n / mahss-TRIK-tee-ən) is, in the International Commission on Stratigraphy (ICS) geologic timescale, the latest age (uppermost stage) of the Late Cretaceous Epoch or Upper Cretaceous Series, the Cretaceous Period or System, and of the Mesozoic Era or Erathem. It spanned the interval from .