Wow, that's wild, almost like Black Swan wild. I was so predisposed to assume fossils are solid stone that I missed that. Still, living things are mostly wate

Wow, that's wild, almost like Black Swan wild. I was so predisposed to assume fossils are solid stone that I missed that. Still, living things are mostly water, and I doubt the mummified 2500 pounds is mostly water. Another response to my question suggests that just the outer shell is stone in the inside is empty. In that case, the mass is coming from the stone shell, and is not very analogous to the living animal's mass, which still makes the phrasing in the article a bit dubious. Perhaps though it contains some original carbon that can be used to do some very old radiocarbon dating, which could improve geological strata based dating of other fossil finds.