The objects in these photos, while not actual fakes are also not what they might appear to be. Many people, myself included until recently thought they were real fossils of ancient palm trees. 50 million years ago this area was a subtropical swamp with palm trees and related vegetation. However, geologists have now concluded that they are a sort of oddity caused by some arcane geochemistry processes. They are called “concretions,” as in becoming concrete-like.