Question

The type of dentition in crocodiles is

• A. Bunodont
• B. Thecodont
• C. Pleurodont
• D. Acrodont

Answer 1

The correct option is B

Thecodont

The correct option is B.

The explanation for the Correct option:

1. Dentition refers to the makeup of a set of teeth including their kind, number, and arrangement.
2. Thecodont dentition is an arrangement of teeth in which the base of the tooth is completely enclosed in a deep socket of bone.
3. It is seen in crocodilians, dinosaurs, and mammals.

The explanations for Incorrect options:

Option A:

1. Bunodont has molar teeth with crowns in the form of rounded or conical cusps.
2. The upper and lower cheek teeth are termed bunodont. Animals having bunodont teeth often have broad diets.

Option C:

1. Pleurodont is a form of tooth arrangement common in reptiles of the order Squamata, as well as in at least one temnospondyl.
2. The cheek side of pleurodont teeth is fused to the inner surface of the jaw bones that host them.

Option D:

1. Acrodont is an arrangement of the teeth at the summit of the alveolar ridge of the jaw, without sockets, characteristic of bony fish.
2. Usually, the acrodont teeth may be related to strong bite force.

Final answer: The type of dentition in crocodiles is the Thecodont.