An 18S–28S analysis sampling all 19 then-recognized scyphozoan families supports several clades but finds other families or suborders unresolved or non-monophyletic.
claim:taxon:scyphozoaScyphozoa
An 18S–28S analysis sampling all 19 then-recognized scyphozoan families supports several clades but finds other families or suborders unresolved or non-monophyletic. This navigation entry is not a phylogeny or a complete taxon dossier.
Represented rangeRange unavailable
Content packagesponges-cnidarians
PBDBtxn:4535
Evidence boundary
Automated checks cover structure, identifiers, translations and links only; maintainer and external expert review are not complete.
Claim ledger
Scyphozoa has no supported scalar crown range in the cited evidence: the living-taxon phylogeny does not establish a diagnostic 505 Ma crown scyphozoan, so the former 505–0 Ma display is withheld.
claim:taxon:scyphozoa:range-boundary-rc50Known limits
- A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.
References
- Evolutionary relationships among scyphozoan jellyfish families based on complete taxon sampling and phylogenetic analyses of 18S and 28S ribosomal DNABayha, K.M.; Dawson, M.N.; Collins, A.G.; Barbeitos, M.S.; Haddock, S.H.D. · 2010 · DOI 10.1093/icb/icq074
- Open Tree of Life web servicesOpenTreeOfLife Project
- The Paleobiology Database application programming interfacePeters, S.E.; McClennen, M. · 2016 · DOI 10.1017/pab.2015.39
- Denormalized occurrence and taxon tables of the Paleobiology DatabaseThe Paleobiology Database Community; Kocsis, Á.T. · 2026 · DOI 10.5281/zenodo.21620933