dino-sours: NMNH Stegosaurus (USNM V 4935) Excavated by Marshall Felch for O.C. Marsh and USGS
dino-sours: NMNH Stegosaurus (USNM V 4935) Excavated by Marshall Felch for O.C. Marsh and USGS, 1886 Mark I: Original fossils mounted 1913 Mark II: Cast replaces original fossils in 2004 Mark III: Updated cast fixes problem with shoulder girdle articulation, incorporates more active pose. To be exhibited in 2019. Photo source -- source link