Specimen IRSNB 1551 from the Sainte-Barbe Clays, Belgium, became the second mounted skeleton of a non-avian dinosaur made primarily out of actual bone when put on display by Louis Dollo in 1884. This specimen was originally assigned to Iguanodon mantelli by George Albert Boulenger in 1881, but was in 1986 thought to pertain to Iguanodon atherfieldensis by David Bruce Norman.
Specimen IRSNB 1551 from the Sainte-Barbe Clays, Belgium, became the second mounted skeleton of a non-avian dinosaur primarily composed of real bone when displayed by Louis Dollo in 1884. This specimen was initially classified as Iguanodon mantelli by George Albert Boulenger in 1881 but was later identified as belonging to Iguanodon atherfieldensis by David Bruce Norman in 1986.