These fossils often consist of the stalk or column, the most durable part of the crinoid’s anatomy. The column is made of disc-like segments, or ossicles, which can easily fossilize. When these ...

Crinoids, often referred to as sea lilies or feather stars, are marine animals that belong to the class Crinoidea within the phylum Echinodermata. They have a rich evolutionary history dating back ...