MySheen

Sea lily

Published: 2024-11-22 Author: mysheen
Last Updated: 2024/11/22, Common name: sea lily origin and delivery date: it is distributed in the deep sea. Introduction: like sea cucumbers, sea stars and sea urchins, sea lilies belong to echinoderms, but sea lilies are the most primitive and ancient species of echinoderms, which lived in the ocean 570 million years ago. Sea lilies look very much like plants and are very similar to lilies on land, so they are called sea lilies. Some species of sea lilies living in the ocean are sessile and can swim freely, while others have stalks.

Common name: crinoids

Origin and Date of Birth:

They are distributed in the deep sea.

Introduction:

Crinoids, like the familiar@#@244 @#@, starfish and sea urchin, belong to echinoderms, but crinoids are the most primitive and oldest species of echinoderms, living in the ocean 570 million years ago.

The shape of crinoids is very similar to plants, and lilies on land are very similar, so people call them crinoids.

Some species of sea crinoids are sessile and swim freely; others are stalked and live in the deep sea. Most crinoids are stalked to the bottom of the sea and live sessile. The attachment part can produce curly branches, the central part of the body is cup-shaped, there are five arms, each arm is branched again, the arm has a step groove, also with the arm branches and branches, there are cilia in the step groove, cilia continuous activity can feed plankton.

 
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