Crinoid fossils are most commonly found in limestone ... creating patterns that resemble tiny, intricate stars or flowers. In some regions, these fossilized fragments are so abundant that they ...

Peat is compacted plant material with much of the original structure still intact ... What kind(s) of organisms are fossilized here? 24. These are fossils of the same kind of organism, a crinoid.

“But this is the oldest example where anyone has found biomarkers inside a particular complete fossil.” The fossilized crinoids—spindly, plant-like animals with multiple feathery arms, which are used ...