Digital conservation of the first dinosaur tracksite of Thailand using photogrammetry for 3D modeling
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Abstract
The first documented dinosaur footprints in Southeast Asia were discovered in 1984. The footprint site is located on the Somdet cliff overlying Phu Luang hill in the Phu Luang Wildlife Sanctuary, Loei Province, Northeastern Thailand. The tracksite is imprinted on a sandstone bed of the Phu Phan Formation, Lower Cretaceous. It is the only footprint track discovered from this stage in Thailand. However, the Phu Luang tracksite is at risk of deterioration due to climate, animal, and human activities. This study aims to monitor a digital conservation plan for this tracksite using 3D models generated through digital photogrammetry. This method’s 3D model output can capture texture and color, and can represent the properties of the specimen at the time. When compared to older processes such as cast and mold footprint, it produces better results and is easier to use. These models provide informative data in detail for conservation and enhance scientific communication and collaboration. By adopting photogrammetry, data production becomes rapid and cost-effective, benefiting specialists and the public for conservation and knowledge dissemination.
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