How long do bones take to decompose to dust?

[silver007]

TL;DR Summary

If bones were laid bare in a room at typical room temperatures for say southern Italy, how long would human bones take to decay naturally?

If bones were laid bare in a room at typical room temperatures for say southern Italy, how long would human bones take to decay naturally?

So, not touched, in open air inside a room, and typical weather conditions. Let's assume the doors are closed, but there is no insulation.

 

[phinds]

What research have you done on this so far? What have you found?

 

[silver007]

Thanks. It's a bit of a mess when trying to find something specific and even then there seem to be varying opinions. I was hoping someone knew the best source of information. Many of the research papers I looked at were very specific and not something similar to what I am asking. Thanks