The park contains petrified woodfossils approximately 20 million years old, scattered throughout the park,[6] which covers about 247 acres (100 ha). The park consists of nine enclaves, but only a small portion of the 247 acres (approx 1 square km) is open to the public.[7] Officials of the GSI believe the fossils were formed during massive flooding that occurred millions of years ago.[8]
The park hosts about 200 fossilized trees. They range in size from 3 to 15 metres (9.8 to 49.2 ft) meters in length, some of which are up to 5 meters in width.[1] They are strewn and partially buried in the park grounds.[6] No branches or leaves remain on the fossilised trunks.[8]
Scientists speculate that the trees did not originally grow at the site, but were transported before they had petrified.[8] M. Sonneret, a European naturalist, gave the first detailed account of the fossils in 1781.[2]
Quality of the fossils
The fossils are well preserved due to extensive petrifaction.[8] The trees' annular rings and pit structures are clearly visible, allowing their age to be determined by counting the rings.[8]
Gallery
20 million year old wood fossil from the Mio-Pliocene age preserved in Cuddalore sandstone.