Bateman, R.M.; DiMichele, W.A.; Willard, D.A.
taxonomy · topology · morphology
Cladistic matrix of anatomically preserved Euramerican arborescent lycopsids; the sample does not define a global Lepidodendrales range or a direct ancestor.
A morphology matrix of anatomically preserved Carboniferous Euramerican arborescent lycopsids tests relationships among Lepidodendrales; it neither identifies a direct ancestor nor establishes the order's global first or last appearance.
claim:taxon:lepidodendronLepidodendron has no supported scalar temporal range here because the navigation record mixes a genus-level ID with a broader Lepidodendrales/arborescent-lycopsid concept, and the cited Carboniferous matrix does not define global endpoints; the former 359–299 Ma display is withheld.
claim:taxon:lepidodendron:range-boundary-rc50