CMD wrote:I'm not familiar with fossils from Kentucky, per se, but I have collected fossils for 50 years and can offer a couple of points. Not all fossil bones are black, for instance.
Many of the mammal fossils of western states, from 65 million years down to the ice age, are white to cream in color. Dino bones are dark, and in some cases as colorful as petrified wood when cut and polished. Just did a google search and found there are no dino fossils found in Ky. And most fossil bones found in Kentucky will date to the last 1 million years. Short description of Kentucky mammal fossils at the site below.
www.uky.edu/KGS/fossils/quartern.htm
Charlie
Well, one thing I just discovered is that it's really tough finding photos that aren't copywrited. But here's a page that shows ~30 million year old mammal fossil bones still fairly light in color. The rabbit skeleton in particular displays the creme color common among those fossils. Here in the east, most of the ice age bones I've seen tend to be more light to dark brown to black.
www.fossilmuseum.net/Fossil_Sites/badlands.htm
Well, I know this doesn't answer the original question regarding the bone from Ky., but where fossil bones are concerned, there is no standard color that applies to all.