text: However , Ralph Molnar in 2004 determined a range of potential sizes for Megalania ( made by scaling up from dorsal vertebrae , after he determined a relationship between dorsal vertebrae length and total body length ) .
simplified: Ralph Molnar in 2004 determined a range of potential sizes for Megalania ( made by scaling up from dorsal vertebrae , after he determined a relationship between dorsal vertebrae length and total body length ) .