Extinction Events
What was the Cretaceous Extinction called?
K-T extinction, or the K-Pg extinction! (Cretaceous-Tertiary extinction or Cretaceous-Paleogene extinction)
What are some of the larger ancestors of Crocodiles and Alligators?
Deinosuchus, Sarchosuchus, Purrasaurus are a couple of them!
How much Life was wiped out in the Triassic Extinction?
About 76% of all Marine and Terrestrial species went extinct, or about 20% of all taxonomic families about 201MYA.
What is the oldest ancestor of mammals?
The oldest ancestor is the synapsids, but some others are the therapsids, Gorgonopsians, Brasilodon, and Morganucodon.
What are a couple of the animals that survived the Cretaceous Extinction?
Birds, Frogs, Snakes, Lizards, and mammals are a couple of them!
What family is Allosaurus Fragilis from?
Allosauridae! Is the correct answer, or Derived from Allosauroidea.
What caused the Cretaceous Extinction?
A speculated asteroid around 10-15KM (6-9miles) in diameter struck earth at 20KM per second (A typical bullet travels at 1700mph, the asteroid was traveling about 26.3168975x faster than a bullet.)
Which animals are derived from dinosaurs?
Birds! These are closest relatives to dinosaurs, such as chickens!
What Extinction Event was before the Triassic Period?
The Permian Extinction or 'The Great Dying!'