CT, surface-scan and photogrammetric models combine hatchling, yearling and adult Mussaurus specimens to test centre-of-mass changes during growth.
Represented range192.9–184.2 Ma
RegionsLaguna Colorada Formation, Patagonia, Argentina
CladesSauropodomorpha
Claim ledger
event-mechanism · medium
Digital models built from the hatchling, yearling PVL 4587 and adult Mussaurus sample move the estimated centre of mass forward and support a bipedal-to-quadrupedal ontogenetic stance shift; the stance is a model result assembled from several individuals, not a preserved gait or evolutionary stage.