Linked from
The 27 pages that link to Quadrupedalism, each with the reason it gives.
DiprotodonRelated: Diprotodon’s massive body was supported and moved on four limbs.
MegatheriumRelated: Megatherium likely moved on four limbs despite being able to rear up.
OrnithopodaRelated: Larger ornithopods could use their forelimbs as well as hind limbs when moving.
BaboonRelated: Baboons commonly travel on all fours while foraging on the ground.
Ground slothRelated: Most ground sloths moved on four limbs, though some could rear upright.
AnkylosaurusRelated: Its broad, low-slung body was supported by four sturdy limbs.
CorythosaurusRelated: Corythosaurus could move on four limbs as well as walk bipedally.
KentrosaurusRelated: Its four-legged stance supported a body protected by extensive armor.
MoschopsRelated: Its limb proportions indicate a heavy-bodied animal that moved on four legs.
PlaceriasRelated: Placerias's robust body and limbs indicate a four-legged stance.