Coelenterates belong to which of the following taxonomic category?

In the classification of organisms, the taxonomic categories include Kingdom, Class, Order, Phylum, Genus, and Species.

According to the five-kingdom classification, organisms are divided into kingdoms Monera, Protista, Fungi, Plantae, and Animalia. All animals are grouped under the kingdom Animalia. Animalia is again classified into two groups namely, invertebrates and vertebrates.  

Coelenterata is an invertebrate phylum where the phylum is a taxonomic rank below the kingdom and above the class. Examples of Coelenterates include hydra, jellyfish, etc.