WorksheetsMesozoic Era
Total questions: 15
Worksheet time: 9mins
Which of the following animals did NOT live during the Mesozoic era?
Birds
Dinosaurs
Fish
Monkeys
Reptiles
What are the two main groups of dinosaurs?
Mammischian "mammal-hipped"
Ornithischian "bird-hipped"
Saurischian "lizard-hipped"
Aquaschian "fish-hipped"
What type of dinosaur is shown?
Pachycephalosaur
Ceratopsian
Prosauropod
Theropod
Which Periods make up the Mesozoic Era?
Cambrian
Jurassic
Tertiary
Triassic
Cretaceous
What type of dinosaur is shown?
Pteradactyl
Tyrannosaurus
Spinosaurus
Sauropod
Why do scientists believe a meteor impact caused the KT mass extinction event?
A crater on the surface of the Earth
A layer of iridium which has dinosaur fossils below it
Damage seen on dinosaur fossils
Based on information from previous extinction events, it is the mostly likely cause
The Mesozoic Era is also known as the...
Age of Mammals
Age of Fishes
Age of Reptiles
Age of Invertebrates
The skeleton pictured above is...
Ornithischian "bird-hipped"
Saurischian "lizard-hipped"
Which of the following did NOT first appear during the Mesozoic era?
Flowering plants
Birds
Reptiles
Mammals
What is the name of the supercontinent that breaks apart during the Jurassic period?
Pangea
Rhodonia
Laurasia
Pannotia
What was the name of the giant ocean that existed at the beginning of the Mesozoic Era?
Indian Ocean
Atlantic Ocean
Panthalassa Ocean
Paleozoic Ocean
Why do supercontinents break apart?
They push against each other and break
Heat trapped under the surface of the continent causes the surface to raise and split apart.
Heat escapes easily from the continental surface.
Oceans flood parts of the continents leading to new seas.
Most early mammals are small because...
They are early in their evolutionary history.
The Earth was too hot for large mammals in the Mesozoic era.
To better avoid dinosaurs, their predators.
What do birds and theropods have in common?
Three-toed feet
Feathers
Wings
Hollow bones
Standing on two legs
Why do early flowering plants have large centers compared to most modern flowers?
There were not as many pollinators in the Mesozoic era.
They needed more pollen than modern flowers.
Petals are hard to grow.
Because there were more plants then compared to today.
