D4500 and D2600 form one approximately 1.8 Ma adult skull that expands observed Dmanisi craniofacial variation; it does not by itself collapse named early Homo taxa into one lineage.
claim:event:dmanisi-skull-five-variationAtlas home / References / A Complete Skull from Dmanisi, Georgia, and the Evolutionary Biology of Early Homo
References / paperA Complete Skull from Dmanisi, Georgia, and the Evolutionary Biology of Early Homo
Lordkipanidze, D.; Ponce de León, M.S.; Margvelashvili, A.; Rak, Y.; Rightmire, G.P.; Vekua, A.; Zollikofer, C.P.E.
Year2013
Source roleprimary-study
DOI / ID10.1126/science.1238484
Fitness and scope
taxonomy · range · morphology · biogeography · methods
D4500 and D2600 are associated as Skull 5. The broad single-lineage interpretation of early Homo is an analysis of variation and remains distinct from the specimen observation.
Claim ledger
Homo is bounded here by the approximately 1.85–1.77 Ma Dmanisi sample, including associated adult skull D4500/D2600 from layer B1y; this documents one population sample and does not collapse all early Homo taxa into one lineage or define the genus’s global range.
claim:taxon:homo:fossil-rangeHomo is displayed at 1.85–1.77 Ma only as the dated Dmanisi assemblage only, not the origin, complete range or living continuation of Homo. The interval is a source-bounded sample window, not a global FAD, LAD, divergence date, continuous occupancy claim or direct-ancestor assertion.
claim:taxon:homo:source-bounded-range-rc49