Also read: Skeleton of 3,000-year-old whale found west of Bangkok
Carbon-dating of the remains shows that the whale is 3,380 years old, which proves that the Amphaeng area, about 12 kilometres inland from the current coastline, was once part of the sea.
Archaeologists had by mid-January found the remainder of the whale’s skeleton, including its cranial splint and ear bones, which are vital for genetic classification and evolution studies.
The remains provide important evidence of how sea levels have changed over thousands of years.