Maidment, S.C.R.
taxonomy · topology · range · morphology · biogeography
Historical and specimen-record review plus an updated sampled phylogeny of Stegosauria; reported stage bounds are literature coverage, not exact origination or extinction instants.
The reviewed stegosaur body-fossil record runs from the Middle Jurassic into the Early Cretaceous, with no definitive younger record in that synthesis; these literature bounds are not exact global origination or extinction instants.
claim:taxon:stegosauriaStegosauria is displayed at 174.7–100.5 Ma only as the review's stage-level body-fossil coverage, not exact origination or extinction instants. The interval is a source-bounded sample window, not a global FAD, LAD, divergence date, continuous occupancy claim or direct-ancestor assertion.
claim:taxon:stegosauria:source-bounded-range-rc49