Micrococcus luteus is a Gram-positive, to Gram-variable, nonmotile, Coccus, saprotrophic bacterium that belongs to the family Micrococcaceae. It is urease and catalase positive.
Why is a mammoth more likely to fossilize than a caterpillar? A mammoth is more likely to fossilize than a caterpillar because a caterpillar has no hard tissue. Bones and cartilage are much more likely to fossilize. Edit
Mammoths are among the best-researched of the former inhabitants of our planet, and their abundance in fossil records and high-quality samples had previously suggested the existence of a large and stable population up until the point they clashed with human hunters.