Question

Choose the extinct vertebrate among the following:

• A. Tuataras
• B. Dinosaurs
• C. Turtles
• D. Crocodiles

Hint:

Dinosaurs are extinct vertebrates, while turtles, crocodiles and tuataras are still living reptiles.

Answer 1

The Correct Option is B

Concept:
Extinct organisms are those that no longer exist anywhere on Earth.

Step 1: Check the options.
Tuataras are living reptiles found in New Zealand.
Turtles are living reptiles.
Crocodiles are also living reptiles.

Step 2: Identify extinct vertebrate.
Dinosaurs are extinct vertebrates, although birds are considered descendants of theropod dinosaurs. \[ \text{Dinosaurs} \rightarrow \text{extinct vertebrates} \]

Step 3: Final answer.
Therefore, the extinct vertebrate among the given options is dinosaurs. \[ \therefore \text{Correct Answer is (B)} \]