Unveiling the Fossil Record of Palaeocrinoidea: Exploring the Evolution of Marine Ecosystems

Palaeocrinoidea is a superfamily of extinct marine animals that lived during the Mesozoic and Cenozoic Eras, from about 250 to 65 million years ago. They were related to modern-day sea lilies (Crinoidea) and were characterized by a long, slender stem with a crown of feathery arms.

Palaeocrinoidea are known from fossils found in sedimentary rocks around the world, including those deposited in shallow marine environments such as beaches, lagoons, and coral reefs. They likely fed on small fish, plankton, and other organic matter that drifted past their feeding arms.

Palaeocrinoidea are important for understanding the evolution of marine ecosystems during the Mesozoic and Cenozoic Eras, as well as the diversity of life on Earth during these time periods.