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However, Moysiuk says these might have been comb jellies from the Ctenophora phylum, rather than the Cnidaria phylum which includes jellyfish, corals and sea anemones.

The authors suggest this suite of characteristics define the Ctenophora.

The researchers did find some similarities to other animal groupings, such as the Cnidaria - the phylum that comprises corals and jellyfish - and the Ctenophora, which includes the marine organisms known as comb jellies.

Our integrative analyses place Ctenophora as the earliest lineage within Metazoa.

A group of Coelenterata, comprising the Anthozoa Ctenophora.