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- Crinoid - Wikipedia
Crinoids are marine invertebrates that make up the class Crinoidea Crinoids that remain attached to the sea floor by a stalk in their adult form are commonly called sea lilies, while the unstalked forms, called feather stars[3][4] or comatulids, are members of the largest crinoid order, Comatulida
- Crinoids - Examples, Characteristics, Anatomy, Fossils, Pictures
Crinoids are marine invertebrates that belong to the class Crinoidea within the phylum Echinodermata, which also includes starfish, brittle stars, sea cucumbers, and sea urchins They possess a cup-like body structure called the crown or theca that confers a unique, flower-like appearance
- Crinoid Fossil - U. S. National Park Service
Crinoids, also known as sea lilies, are related to starfish, sea urchins, and sea cucumbers They are still alive today, though they are not as common or as large as they were during the Paleozoic
- Crinoid | Sea Lilies, Feather Stars Stalked Echinoderms | Britannica
crinoid, any marine invertebrate of the class Crinoidea (phylum Echinodermata) usually possessing a somewhat cup-shaped body and five or more flexible and active arms
- About Crinoids - FossilEra. com
The three main sections of a crinoid give it the lily-like appearance These sections are the segmented column or stem, the calyx where the body cavity and digestion occurs, and the arms which filter food from the environment
- Facts About Crinoid Fossils - Geology In
Crinoids are marine animals that belong to the phylum Echinodermata, which also includes starfish, sea urchins, and sea cucumbers They are commonly known as sea lilies or feather stars Crinoids have a long evolutionary history, dating back to the Ordovician period, around 500 million years ago
- Crinoids - British Geological Survey
They are an ancient fossil group that first appeared in the seas of the mid Cambrian, about 300 million years before dinosaurs They flourished in the Palaeozoic and Mesozoic eras and some survive to the present day
- CRINOIDS - University of California Museum of Paleontology
Stalked crinoids, or "sea lilies", lived attached to the bottom, and filtered food particles from the currents flowing past them The extant Crinoids are the only remaining attached suspension-feeding echinoderms
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