title: Animal evolution: once upon a time.
abstract: The evolutionary relationships between the earliest branches of the animal kingdom - bilaterians, cnidarians, ctenophores, sponges and placozoans - are contentious. A new phylogenomic analysis suggests a return to old ideas.
authors.affiliation: Department of Genetics, Evolution and Environment, University College London, London, UK. m.telford@ucl.ac.uk
authors.forename: Maximilian J
authors.initials: MJ
authors.lastname: Telford
mesh_terms: D000818:Animals; D005075:Biological Evolution; D005580:Fossils; D023281:Genomics; D010802:Phylogeny