art by Heinrich Harder (c. 1900-1913)
art by Heinrich Harder (c. 1900-1913) -- source link
#heinrich harder#dinosaur art#paleontology#palaeoart#palaeo-artist#triassic#jurassic#cretaceous#illustrations#natural history#mesozoic#trilobite#ammonites#ichthyosaur#pteranodon#stegosaurus#diplodocus#iguanodon