Fossil, Pentremites Rusticus (ex Alex Cook Collection)

Item Description

We don't offer a lot of fossils in the auctions, but this one is cool and you don't see a lot of these on the market. Pentremites are an extinct genus of echinoderms which were related to the crinoids or sea lilies, living on the sea floor attached by a stalk. They trapped food floating in the currents by means of tentacle-like appendices and were plentiful during the Carboniferous Period (more specifically the Pennsylvanian Period dating from 320 million years ago to 299 million years ago). This piece comes from near Gore, Oklahoma and features a predominant, very well preseverd, 1.5 cm Pentrimites Rusticus in host rock matrix. From the collection of Alex Cook.