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FORMAL PRESENTATION

Joey Cardinale

Created on September 29, 2024

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Transcript

Joseph Cardinale

The Late Cretaceous Period

A key event was the Cretaceous-Paleogene (K-Pg) extinction. This occurred around 66 million years ago due to an asteroid impact in Mexico and volcanic activity in India. It led to the extinction of about 75% of species, including all non-avian dinosaurs. ragraph is ready to be filled with incredible creativity, experiences, and stories.

Late Cretaceous.Duration: It lasted from about 100.5 million to 66 million years ago. Classification: This is the last period of the Mesozoic Era.

2. World Overview Climate and Atmosphere: The Late Cretaceous had a warm climate with high sea levels. There was little ice, and carbon dioxide levels were elevated. Organisms: Dinosaurs like Tyrannosaurus rex and Triceratops dominated the land. Marine reptiles such as mosasaurs thrived in the oceans, while pterosaurs flew overhead. Flowering plants began to appear, increasing biodiversity.

  • Interesting Facts
  • The Late Cretaceous saw the rise of modern plant groups, including flowering plants.
  • Giant ammonites, a type of mollusk, thrived in the oceans.
  • Some dinosaurs, especially theropods, are ancestors of modern birds.
  • Continental drift created many islands, affecting species evolution.

. References Smithsonian Institution: Cretaceous Period. Retrieved from https://www.si.edu. National Geographic: The Cretaceous Period. Retrieved from https://www.nationalgeographic.com.