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Project Noah Nature School
Spotted 100M in Sierra Cave, Callao Ecotourism Zone, Peñablanca, Cagayan. About 5cm in diameter.
Spotted on Sep 28, 2011
Submitted on Mar 1, 2012
3 Comments
Those holes seen first picture at left side look like fossils from Shells.
That's possible but we thinking it's an impression of a shell because of the coral impression and fossils nearby. http://www.projectnoah.org/spottings/931...
Look like carving work... But not sure... Need to learn about related civilization language that time caves were used.