Abstract

A vertebra collected from the Jurassic non-marine Khlong Min Formation of southern Thailand is referred to the family Euhelopodidae, a group of sauropod dinosaurs that apparently was endemic to eastern Asia during the Jurassic and Early Cretaceous, at a time when that part of the world was isolated from other land masses. The occurrence of a euhelopodid in the Jurassic of the Shan–Thai Block supports the idea of a collision of the Shan–Thai Block with the Indochina Block, thus establishing connections with ‘mainland Asia’, early in the Mesozoic, probably before the Jurassic.

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