Class Echinoidea (Noun)
Meaning
Sea urchins and sand dollars.
Classification
Nouns denoting animals.
Examples
- The class Echinoidea is a group of marine animals that includes sea urchins and sand dollars, characterized by their unique body shape and spiny exterior.
- Sea urchins and sand dollars belong to the class Echinoidea, which is a diverse group of species that can be found in oceans around the world.
- The class Echinoidea is divided into several orders, including the regular sea urchins and the irregular sand dollars, each with distinct characteristics.
- Fossil records show that the class Echinoidea has been present on Earth for over 450 million years, with many extinct species of sea urchins and sand dollars.
- The class Echinoidea is an important part of the marine ecosystem, with sea urchins and sand dollars playing a vital role in maintaining the balance of their environments.