A taxonomically broad legume phylogeny supports six subfamilies and replaces the traditional broad Caesalpinioideae arrangement; this is a sampled classification, not a Fabaceae origin date.
claim:taxon:fabaceaeFabaceae
The 65.35 Ma Corral Bluffs fruit and leaflets provide a source-bounded family record, while a taxonomically comprehensive phylogeny revises living subfamily classification. Neither evidence stream fixes crown-Fabaceae age, subfamily placement of the fossil or an origin centre.
Represented range65.35–Present Ma
Content packageangiospermae
PBDBtxn:183021
Evidence boundary
Automated checks cover structure, identifiers, translations and links only; maintainer and external expert review are not complete.
Claim ledger
The fossil legume record represented here is the 65.35 Ma Corral Bluffs fruit and leaflets in Colorado, United States; it does not establish a geographic origin or continuous global distribution of Fabaceae.
claim:taxon:fabaceae:biogeographyThe Corral Bluffs fruit and leaflets support a bounded plant fossil record, but they do not directly establish habitat, diet, physiology or one ecological guild for Fabaceae.
claim:taxon:fabaceae:ecologyA 65.35 Ma Corral Bluffs fruit and leaflets are assigned to Fabaceae; these structures demonstrate a bounded family-level fossil record rather than a subfamily assignment or universal legume morphology.
claim:taxon:fabaceae:morphologyFabaceae is displayed at 65.35–0 Ma only as a Corral-Bluffs-fossil-to-living navigation anthology: the dated fruit and leaflets support family presence but not an exact crown origin, subfamily assignment, direct ancestry or continuous global occupancy.
claim:taxon:fabaceae:range-boundary-rc50Known limits
- A missing branch or fossil occurrence does not imply biological absence. Internal nodes are not calibrated divergence estimates.
- PBDB mapping requires concept review because the pinned lineage is incompatible with the local expected parent Eudicotyledones.
References
- Exceptional continental record of biotic recovery after the Cretaceous–Paleogene mass extinctionLyson, T.R.; Miller, I.M.; Bercovici, A.D.; Weissenburger, K.; Fuentes, A.J.; Clyde, W.C.; Hagadorn, J.W.; Butrim, M.J.; Johnson, K.R.; Fleming, R.F.; et al. · 2019 · DOI 10.1126/science.aay2268
- The origin of the legumes is a complex paleopolyploid phylogenomic tangle closely associated with the Cretaceous–Paleogene (K–Pg) mass extinction eventKoenen, E.J.M.; Ojeda, D.I.; Bakker, F.T.; Wieringa, J.J.; Kidner, C.; Hardy, O.J.; Pennington, R.T.; Herendeen, P.S.; Bruneau, A.; Hughes, C.E. · 2021 · DOI 10.1093/sysbio/syaa041
- Open Tree of Life web servicesOpenTreeOfLife Project
- The Paleobiology Database application programming interfacePeters, S.E.; McClennen, M. · 2016 · DOI 10.1017/pab.2015.39
- A new subfamily classification of the Leguminosae based on a taxonomically comprehensive phylogenyLegume Phylogeny Working Group · 2017 · DOI 10.12705/661.3
- Denormalized occurrence and taxon tables of the Paleobiology DatabaseThe Paleobiology Database Community; Kocsis, Á.T. · 2026 · DOI 10.5281/zenodo.21620933