Placodonts
Nothosaurs
Plesiosaurs
Ichthyosaurs
Mosasaurs
100

What were placodonts?

What is aquatic reptiles?

100

How long was Nothosaurus?

What is 13 ft?

100

Which marine reptiles were better suited to a marine lifestyle than nothosaurs or placodonts?

What is plesiosaurs?

100

What does Ichthyosaur mean?

What is “fish lizard”?

100

Mosasaurs were what type of reptile?

What is diapsid reptiles?

200

What does placodont mean?

What is “plate tooth”?

200

Did Nothosaurus have webbed toes?

What is yes?

200

Did most plesiosaurs have a long, bendy neck?

What is yes?

200

Ichthyosaurs looked similar to which two modern day creatures?

What is sharks and dolphins?

200

What is the best known mosasaur?

What is Mosasaurus?

300
Placodonts appeared around the same time as which other marine reptiles?

What is nothosaurs?

300

What did Nothosaurus feed on?

What is fish and shrimp?

300

What did Plesiosaurs eat?

What is fish, squid, and pterosaurs (most likely)?

300

How long could Ichthyosaurs grow to?

What is 6.5 ft?
300

What were mosasaur teeth shaped like?

What is a cone?

400

Placodus, one of the placodonts, grew up to what size?

What is 6.5 ft?

400

Which other marine reptiles took the place of nothosaurs after they became extinct?

What is plesiosaurs?

400

The longest plesiosaur, Elasmosaurus, lived late in which time period?

What is the Cretaceous period?

400

What is the name of one of the largest Ichthyosaurs, which grew to over 65 ft, and possibly was 25 tons?

What is Shastasaurus?

400

At first, what did scientists believe mosasaur jaws belonged to?

What is a prehistoric whale or crocodile?

500

In which period did placodonts live in?

What is the Triassic period?

500

Which period did nothosaurs thrive in, and eventually became extinct by the end of?

What is the Triassic period?

500
For how many years were plesiosaurs plentiful?

What is 144 million years?

500

How many years ago did Ichthyosaurs finally go extinct?

What is 66 mya?

500

How many years ago did mosasaurs appear?

What is 140 mya?