What specific structural characteristic defines the dentition of *Xenacanthus*?
Answer
The teeth are asymmetrical, often depicted with two cusps angled in opposite directions.
The teeth of *Xenacanthus* provide highly diagnostic fossil evidence due to their unique structure. They are characterized by pronounced asymmetry. Specifically, the teeth are frequently described as having two cusps or points that diverge, angling away from each other. This arrangement is highly efficient not for tearing large pieces, but rather for effectively grasping and holding softer prey items, such as early amphibians or small bony fish, preventing them from escaping the jaws during the feeding process.
Related Questions
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