Dinosaurs
How tall was the T-Rex?
20ft (6m)
How long ago did flowering plants evolve?
75 million years ago
What marine life conquered the ocean?
Sharks, Rays, Fish
What major factor influenced the paleo geography of the Cretaceous period?
The high sea level
What was the land bridge called that dinosaurs crossed?
Trans-Tethys land bridge
What 5 dinosaurs evolved during this period?
T-Rex, Spinosaurus, Velociraptor, Ankylosaurus, Iguanodons
What were the first flowering plants called?
Angiosperms
What marine life grew to 23ft (7m) long?
Platypterygius
How high were the sea levels in the early Cretaceous period?
330-660ft (100-200m)
What were the two continents called during this period?
Laurasia and Gondwana
How heavy is the Velociraptor?
33lbs (15kg)
What type of plants began to grow during the Cretaceous period?
Flowering plants
The kronosaurus evolved from what animal?
Lizards
How high were the sea levels in the late Cretaceous period?
660-820ft (200-250m)
What caused the Cretaceous period to begin?
Pangea split into 2 continents
What dinosaur can run up to 10 mph when on 2 feet?
Iguanodons
What plants grew over 100 ft tall?
Club misses and horsetails
What 1st true animals today were evolved in the Cretaceous period?
Lobsters and Squids
What element caused favorable climate conditions for plants?
Oxygen
What were the dimensions of the asteroid that ended the dinosaurs?
10-15kms wide
Which dinosaur had armored plates along its body?
Ankylosaurus
What plants served as a primary source of food for herbivores?
Cycads
What was the bony fish type called?
Ray-finned fish
How were flower plants pollinated?
By insects
When did the Cretaceous period begin?
100.5 million years ago