Thursday, October 4, 2018

Sea Lilies and Feather Stars

Crinoid fossils naturally contain small holes...the fossilized segments became a staple in rosary beading, and are still heavily associated with St. Cuthbert.
~Cynthia Griffith


Marine animals called crinoids today. Crinoids attached to the sea bottom by a stalk are called sea lilies and unstalked crinoids are called feather stars.

Colorful crinoids at shallow waters of Gili Lawa Laut, Indonesia
photo by Alexander Vasenin

Proisocrinus ruberrimus, a Proisocrinidae
NOAA Photo Library

Two Crinoids
NOAA Photo Library

Crinoid on the reef of Batu Moncho Island (near Komodo, Indonesia)
photo by Alexander Vasenin

Feather Star Crinoid
NOAA Photo Library

A stalked crinoid
by Ernst Haeckel

Fossil crinoids in chalk
photo by James St. John


3 comments:

Linda B said...

I only saw these once (for real) off the coast of Santa Barbara, diving with students. They were so beautiful!

Pop said...

Just gorgeous...nature's artwork!

Found particularly interesting "Fossil crinoids in chalk"; this gives an excellent view of their structure.

Brenda Harsham said...

Gorgeous life under the sea. I've always enjoyed the clear water and snorkeling of the Caribbean. I miss it. Any idea when the PF post will be up?