Dinosaurs and the Late Triassic Mass Extinction

What event allowed dinosaurs to dominate the terrestrial realm?

• The Cretaceous-Paleogene Extinction

• The Late Triassic Mass Extinction

• The Great Dying

• The Permian-Triassic Extinction

Which marine organisms were devastated during the Late Triassic Mass Extinction?

• Reef-building corals

• Plesiosaurs

• Ammonites

• Crocodiles

Which group of organisms was a major competitor to dinosaurs before the extinction event?

• Reptiles

• Mammals

• Thoracids

• Birds

What geological event coincided with the Late Triassic Mass Extinction?

• Separation of Pangaea

• Collision of tectonic plates

• Formation of the supercontinent Pangaea

• Formation of the Siberian Traps

What was a significant consequence of the separation of Pangaea?

• Rise of mammals

• Global cooling

• Formation of new oceans

• Increased volcanic activity

How did increased CO2 levels contribute to the extinction event?

• By leading to ocean anoxia

• By reducing volcanic activity

• By increasing ocean salinity

• By causing global cooling

What was the impact of phytoplankton blooms during the extinction event?

• Increased oxygen levels

• Decreased ocean salinity

• Contributed to ocean anoxia

• Caused global cooling

What adaptation helped dinosaurs survive the Late Triassic Mass Extinction?

• Feather-like coats

• Large body size

• Ability to fly

• Herbivorous diet

Which group of organisms survived by burrowing to escape heat?

• Proto mammals

• Dinosaurs

• Ammonites

• Crocodiles

What was a key factor in the dinosaurs' ability to thrive after the extinction event?

• Herbivorous diet

• Their large size

• Lack of competition

• Ability to fly