Ecdysozoa facts for kids
Temporal range: Lower Cambrian – Recent
Aguinaldo et al., 1997
The Ecdysozoa (also called cycloneuralia) are a group of protostome animal phyla. This is a taxon above the level of phylum. It includes the Arthropoda (insects and crustaceans), Nematoda, and several smaller phyla.
They were first defined in 1997, based mainly on phylogenetic trees got from 18S ribosomal RNA genes. A large study in 2008 strongly supported the Ecdysozoa as a clade, that is, a group consisting of a common ancestor and all its descendants.
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Ecdysozoa Facts for Kids. Kiddle Encyclopedia.