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How many trunk vertebrae can a caecilian have?

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Zoom in on the serpentine locomotion of the limbless, amphibious caecilian over soil — Gymnophiona Caecilian moving over soil.

A caecilian can have between 95 and 285 trunk vertebrae. The vertebral column of these amphibians consists of an atlas followed by these trunk vertebrae, and they do not possess differentiated sacral vertebrae.1