Brittle stars, with five arms extending from a central disk, are part of a group of marine life called echinoderms.

蛇尾从中" 盘" 伸出5个手臂，是一种海洋生物，被称为棘皮动物。

First, there were plants and then fungi, coral then protosomes like crabs, echinoderms like sea urchins and then fish like sharks and cod.

首先出现是植物，后是菌类，珊瑚，螃蟹类，棘皮动物像海胆之类，后是鱼类像鲨鱼和鳕鱼。

Most of the main groups of the animal kingdom—arthropods, brachiopods, coelenterates, echinoderms, molluscs and even chordates, the branch from which vertebrates went on to develop—are found in the fossil beds of the Cambrian.

人们在寒武纪群落里发现了动物王国主要动物集群，包括腕足、腔肠、棘皮、软体和脊索（脊椎动物进化分支）。