Louis Dollo
(1857-1931)
Dollo was a Belgian Palaeontologist and in1878 he worked on Iguanadon He was the first to make a reconstruction of this animal. He also proposed the Law of Irreversibility in Evolution. This stated that once a complex structure is lost, it can never return in its original form.
Dollo, L. 1888 Sur la signification de la créte occipitale de Pteranodon. Proc.-verb. Soc. belg. Géol. Paléont. Hydrol. 2, 79–80.
Dollo, L. 1889 Le vol chez les vertébrés. Rev. Quest. Scient. 26, 146–207 & 410–485.
Dollo, L. 1889 Les ptérosauriens. Rev. Quest. Scient. 25, 664–666.
Dollo, L. 1891 Les ptérosauriens. Proc.-verb. Soc. belg. Géol. Paléont. Hydrol. 5, 174–175.