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Question

Typical characteristic of thecodont teeth is ________ joint.

A
Gomphosis
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B
Syndesmoses
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C
Amphiarthrosis
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D
Synchondroses
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Solution

The correct option is A Gomphosis
A. Gomphosis
Reason: Gomphosis is the specialized fibrous joint that anchors the root of a tooth into its bony socket within the both maxillary bone or upper jaw and mandible bone or lower jaw of the skull. A gomphosis is also known as a peg-and-socket joint. It is usually found in case of thecodont dentition. It is a morphological arrangement in which the base of the tooth is completely enclosed in a deep socket of bone. Examples include living crocodilians and mammals.

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