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ID: 45612
Brontosaurus (Apatosaurus) skeleton
ID: 45613
Preparing Brontosaurus (Apatosaurus) skeleton, American Museum of Natural History
ID: 46535
Preparing Brontosaurus (Apatosaurus) skeleton, about 1900-1920
ID: 286913
Class studying at Museum, Fossil Mammal Hall, 1900
ID: 363
Fossil Mammal Hall, circa 1900
ID: 324903
Exhibit cases, Age of Mammals Hall, circa 1900
ID: 35094
Patriofelis ferox, mounted skeleton
ID: 17506
Mounting Brontosaurus skeleton forelimb, 1904
ID: 17507
Mounting Brontosaurus forelimb, 1904
ID: 17504
Preparators with Brontosaurus skeleton mounting (right side view), American Museum of Natural History, May 1904
ID: 17505
Brontosaurus skeleton mounting, American Museum of Natural History, May 1904
ID: 333451
Professor Henry Fairfield Osborn's office with Palaeosyops and other fossils, 1905
ID: 17502
Allosaurus fragilis, partly mounted skeleton, oblique top, front view, American Museum of Natural History, 1905
ID: 17503
ID: 17532
Great Carnivorous Dinosaur Deindon, Preliminary Restoration, with human skeleton for some scale by W. Matthew, 1905
ID: 17540
Mounted Allosaurus skeleton, 3/4 front, American Museum of Natural History, 1907
ID: 31739
Moving Mastodon Americanus, 1907
ID: 31740
Preparing Mastodon Americanus found near Newburg, New York, 1907
ID: 5275
Allosaurus and Brontosaurus, Hall of Fossil Reptiles, August 19, 1907
ID: 31751
Warren Mastodon, [Fossil Mammal Hall], 1907
ID: 5279
Trachodon, Hall of Fossil Reptiles, December 3, 1907
ID: 35377
Framework and partially assembled skeleton of Trachodon, 1908
ID: 28973
Boxing Tyrannosaurus rex pelvis, Big Dry Creek, Montana, 1908
ID: 338610
Henry Fairfield Osborn's notes about Hell Creek formation, Montana, 1908
ID: 2A24110
Peter Kaisen working on Tyrannosaurus rex skull, 1908, Hell Creek, Montana
ID: 47387
Tarpon jumping, Turner River, Florida, 1908
ID: 319969
Seated in fossil shark jaw restoration, 1909
ID: 32522
Restored jaws of Carcharodon megalodon from the Atlantic, Fossil Fish Hall, 1909
ID: 32520
Restoration of jaws of Carcharodon megalodon, Fossil Fish Hall, 1909
ID: 32521
Jaws of Carcharodon, Fossil Fish Hall, 1909
ID: 17542
Brain casts of Warren Mastodon and modern elephant, circa 1909
ID: 17543
Apterodon skull, circa 1909
ID: 17544
Palaeomastodon palate, circa 1909
ID: 17545
Ptolemaia jaw, circa 1909
ID: 17546
Moeritherium lyonsi skull, side, circa 1909
ID: 17547
Trachodon skin impression
ID: 17554
Map showing Pleistocene mammal deposits in Alaska, circa 1909
ID: 17555
Map showing Pleistocene mammal deposits in Europe, circa 1909
ID: 17556
Map showing the United States with Pleistocene fossil deposits, a paleogeographical and zoological plotting chart prepared by the Department of Vertebrate Paleontology, issued 1909
ID: ptc-6218
Tyrannosaurus rex, 1910
ID: 32603
Restoration of Carcharodon megalodon jaws, Fossil Fish Hall, 1910
ID: 17550
Diplocaulus skull and part of skeleton
ID: 17561
Hesperornis, mounted skeleton, view of right side
ID: 17562
Freeing bones from matrix
ID: 17563
ID: 35423
Tyrannosaurus rex, pelvis and limbs, circa 1910
ID: 104451
Moropus, left foot, inner view
ID: 18517
Dr. Sinclair collecting Systemodon jaws, Big Horn Basin, Wyoming, 1911
ID: 330491
Trachodon mummy, left side (Edmontosaurus)
ID: 35517
Ground Sloth Group, [Hall of the Age of Man], 1911
ID: 33605
Children viewing Allosaurus, Hall of Fossil Reptiles, 1911
ID: 18552
Skeleton of Corythosaurus, Belly River beds, Alberta, Canada, 1912
ID: ptc-5415
Barnum Brown with his discovery of the Centrosaurus, Red Deer River, Canada, 1912
ID: 131482
Corythosaurus skeleton excavated by Barnum Brown in Belly River beds near Steveville, Alberta, Canada, 1912
ID: 35576
Tyrannosaurus rex skeleton model scene, 1912
ID: 35582
Tyrannosaurus rex models, American Museum of Natural History, 1912
ID: 35567
Tyrannosaurus rex skeleton model pose #1, right side view, 1912
ID: 17283
Pelecypod fossil, specimen 1365, 1913
ID: ls-256-023
Ornithominus or Struthiomimus, Belly River, Alberta, 1914
ID: 36194
Struthiomimus skeleton, left, November, 1915
ID: 34798
Mounting trachodon, 1916
ID: 34799
Mounting Trachodon, 1916
ID: 35059
Assembling Diplodocus forelimb, 1916
ID: 34797
Trachodons or duck-billed dinosaurs, [Hall of Fossil Reptiles], 1916
ID: 36216
Monoclonius skeleton, right side, 1917
ID: 36246
Brontosaurus (Apatosaurus) skeleton, American Museum of Natural History, 1917
ID: 36213
Monoclonius skeleton, 1917
ID: 36215
Monoclonius skeleton, on work table with cases of specimens in lab, 1917
ID: 36668
Plan of Hall of Geology and Invertebrate Paleontology, Chester A. Reeds, 1917
ID: 36673
Plan of arrangements of cases and exhibits, Hall of Geology and Invertebrate Paleontology, August 1917
ID: 36675
Design of arrangements of cases and exhibits by E.O. Hovey, Hall of Geology and Invertebrate Palaeontology, September 1912
ID: 36691
Mounted bryozoa specimens, Hall of Geology, 1917
ID: 38110
Children in the Dinosaur Hall, 1920
ID: 38713
Tyrannosaurus rex, [Hall of Fossil Reptiles], 1921
ID: 38714
Dinosaur Hall [Hall of Fossil Reptiles, Amphibians, and Fishes], 1921
ID: 38830
Restoration drawing by Erwin Christman of Corythosaurus casuarius and Gorgosaurus libratus from the Cretaceous of Alberta, Canada, 1921
ID: K17241
Nest of the even dozen dinosaur eggs, Mongolia
ID: 410736
Walter Granger and assistants taking out skull and skeleton of a dinosaur, Shabarahk Usu, Mongolia
ID: ls3-17
Walter Granger brushes a dinosaur bone, Mongolia, 1921-1930
ID: 310273
Otto Falkenbach working on mounted Palaeoscincus specimen, 1922
ID: 251507
Walter Granger pasting skull of Baluchitherium, Mongolia, 1922
ID: 251502
Baluchitherium skull in situ, [Mongolia, 1922]
ID: 310443
Triceratops, mounted skeleton, right side view, 1923
ID: 310030p
Pelecypoda exhibit, Geology Hall, 1923
ID: 108742
Protoceratops skull in Djadochta beds, Shabarakh Usu, Mongolia, 1923
ID: 108738
Shabarak-Usu, looking east from camp to Djadochta fossil field, Mongolia, 1923
ID: 253858
Professor Henry Fairfield Osborn with fossil tooth near Irdin Manha, Inner Mongolia, China, 1923
ID: 310269
Paleoscincus
ID: 310309
Eryops, mounted skeleton, right side view, circa 1923
ID: 310433
Triceratops, top view of skull, circa 1923
ID: 310530
Paul Bultman working on mastodon specimen from India, 1924
ID: 108770
Mongolia superposed on map of the United States with proper latitudes and fossil localities noted in each, prepared by Mook and Morris, 1924
ID: 310477
George Olsen working on dinosaur eggs, 1924
ID: 311515
Otto Falkenbach at work on giant turtle fossil, 1925
ID: 258264
Roy Chapman Andrews photographing nest of even dozen dinosaur eggs, Mongolia, 1925
ID: 258227
Buckshot taking out complete dinosaur, Mongolia, 1925
ID: 410740
Roy Chapman Andrews and Walter Granger with four legs of giant Baluchitherium fossil, Mongolia, 1925
ID: 411098
Amblypod fossil, Mongolia, 1925
ID: 410724
James B. Shackelford filming the excavation of the dinosaur eggs, Roy Chapman Andrews pointing and George Olsen excavating, Mongolia, 1925
ID: 410737
Dinosaur skull, Shabarahk Usu, Mongolia, 1925