A 41-taxon phylogenomic matrix supports Anthozoa, Medusozoa, Octocorallia, Hydrozoa and a Staurozoa–Cubozoa–Scyphozoa clade, while Hexacorallia support is weak because Ceriantharia placement is equivocal.
claim:event:cnidarian-phylogenomic-samplePhylogenomic analyses support traditional relationships within Cnidaria
Zapata, F.; Goetz, F.E.; Smith, S.A.; Howison, M.; Siebert, S.; Church, S.H.; Sanders, S.M.; Ames, C.L.; McFadden, C.S.; France, S.C.; et al.
Year2015
Source roleprimary-study
DOI / ID10.1371/journal.pone.0139068
Fitness and scope
topology · methods
Uses 15 new transcriptomes plus 26 public genomes/transcriptomes; several deep nodes are supported while Hexacorallia is weak under the sampled matrices.
Claim ledger
Phylogenomic matrices sampling major cnidarian lineages recover Anthozoa as one of the two principal cnidarian branches; this sampled topology does not specify an anthozoan ancestor or fossil first appearance.
claim:taxon:anthozoaAnthozoa has no supported scalar temporal range in the cited evidence: the phylogenomic analysis tests relationships among sampled living cnidarians but does not date a crown-Anthozoa fossil boundary, so the former 540–0 Ma display is withheld.
claim:taxon:anthozoa:range-boundary-rc50