What does the name echinoderm mean?

Echinoderms are a phylum of marine animals. … The word “echinoderm” is made up from Greek ἐχινόδερμα, “spiny skin”, cf. ἐχῖνος, “hedgehog; sea-urchin” and δέρμα, “skin”, echinodérmata being the Greek plural form. The echinoderms are important both biologically and geologically.

What does echinoderm mean in Greek?

Echinodermata are so named owing to their spiny skin (from the Greek “echinos” meaning “spiny” and “dermos” meaning “skin”), and this phylum is a collection of about 7,000 described living species. … Sea stars (Figure 1), sea cucumbers, sea urchins, sand dollars, and brittle stars are all examples of echinoderms.