A four-gene supermatrix resolves many sampled fern relationships while retaining poorly supported branches; the result describes an extant-heavy sample, not a complete Filicopsida history or fossil range.
claim:taxon:filicopsidaFilicopsida
A four-gene supermatrix resolves many sampled fern relationships while retaining poorly supported branches; the result describes an extant-heavy sample, not a complete Filicopsida history or fossil range. This navigation entry is not a phylogeny or a complete taxon dossier.
Represented rangeRange unavailable
Content packageearly-land-plants
PBDBNot linked
Evidence boundary
Automated checks cover structure, identifiers, translations and links only; maintainer and external expert review are not complete.
Claim ledger
Filicopsida has no supported scalar range here: the historical class concept is not aligned with a single crown or total group, and the review questions Devonian fern assignments while recognizing firmer Lower Carboniferous filicalean evidence; the former 360–0 Ma display is withheld.
claim:taxon:filicopsida:range-boundary-rc50Known limits
- A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.
- PBDB external identifier withheld: accepted-name-mismatch.
References
- Towards Resolving the Complete Fern Tree of LifeLehtonen, S. · 2011 · DOI 10.1371/journal.pone.0024851
- Diversification of early fernsGaltier, J.; Scott, A.C. · 1985
- Open Tree of Life web servicesOpenTreeOfLife Project
- The Paleobiology Database application programming interfacePeters, S.E.; McClennen, M. · 2016 · DOI 10.1017/pab.2015.39