Crinoid fossils are most commonly found in limestone deposits that were once ancient seabeds. These fossils often consist of the stalk or column, the most durable part of the crinoid’s anatomy.

Many of the rock layers contain fossils of these organisms ... It forms small round or ellipitical patches within the limestone. American Indians used chert for tools and weapons. Crinoids are marine ...

The team led by the University of Cambridge published their study in the journal Nature and thought that the new fossil could attest to why birds survived the mass extinction event at the end of ...

The predator was attempting to eat sea lilies, also called crinoids. The deep-sea creatures, which could be mistaken for plants, still exist today. The fossil also appears to contain bryozoans ...

The predator was attempting to eat sea lilies, also called crinoids. The deep-sea creatures, which could be mistaken for plants, still exist today. The fossil also appears to contain bryozoans, Olsen ...