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ID: ls3-17
Walter Granger brushes a dinosaur bone, Mongolia, 1921-1930
ID: 310273
Otto Falkenbach working on mounted Palaeoscincus specimen, 1922
ID: ls-005-061
Olsen and "Buckshot" excavating hind leg of carnivorous dinosaur, Cretaceous beds of Iren Dabasu, Mongolia
ID: 310443
Triceratops, mounted skeleton, right side view, 1923
ID: 108742
Protoceratops skull in Djadochta beds, Shabarakh Usu, Mongolia, 1923
ID: 251613
Djadochta beds near cliffs, Shabarakh Usu, Mongolia, 1923
ID: 108751
A nest of dinosaur eggs in-situ with weathered out eggs in foreground, in the red Cretaceous sandstone at Djadokhta, Mongolia, August, 1923
ID: 253858
Professor Henry Fairfield Osborn with fossil tooth near Irdin Manha, Inner Mongolia, China, 1923
ID: 310100
Struthiomimus, mounted skeleton on slab
ID: 310269
Paleoscincus
ID: 310433
Triceratops, top view of skull, circa 1923
ID: 311073
Triceratops head, oblique back view, 1924
ID: 251830
Life zones discovered by the expedition, prepared by Frederick Morris, 1924
ID: 310477
George Olsen working on dinosaur eggs, 1924
ID: ls-003-053
Roy Chapman Andrews and George Olsen at nest of "the even dozen dinosaur eggs," Third Asiatic Expedition, Mongolia, 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: 258265
ID: 410724
James B. Shackelford filming the excavation of the dinosaur eggs, Roy Chapman Andrews pointing and George Olsen excavating, Mongolia, 1925
ID: 410723
Motor cars atop dinosaur beds, Shabarahk Usu, Mongolia, 1925
ID: 410737
Dinosaur skull, Shabarahk Usu, Mongolia, 1925
ID: 410738
"Buckshot" taking out dinosaur skeleton and skull, Mongolia, 1925
ID: 410744
Granger and his assistants taking out a dinosaur skeleton from fossil beds where dinosaur eggs and bones were found, Shabarahk Usu, Mongolia, 1925
ID: 410745
Walter Granger and "Buckshot" taking out dinosaur skeleton, Mongolia, 1925
ID: 410746
Walter Granger at work on the nest of dinosaur eggs found by Norman Lovell, Mongolia, 1925
ID: 410761
Roy Chapman Andrews and George Olsen looking over the even dozen dinosaur eggs, Mongolia, 1925
ID: 410760
At nest of the even dozen dinosaur eggs, with George Olsen, who found them, at left, and Roy Chapman Andrews at right, Mongolia, 1925
ID: 410764
Roy Chapman Andrews and the even dozen dinosaur eggs, Mongolia, 1925
ID: 410765
The even dozen dinosaur eggs, Mongolia, 1925
ID: 410767
Caravan of 125 camels at base of Flaming Cliffs of Shabarahk Usu, where dinosaur bones were found, Mongolia, 1925
ID: 410735
First dinosaur eggs found by George Olsen, Mongolia, 1925
ID: 410733
Roy Chapman Andrews examining first find of dinosaur eggs by George Olsen, Mongolia, 1925
ID: 410743
Roy Chapman Andrews examining site of dinosaur eggs, Mongolia, 1925
ID: 410734
Roy Chapman Andrews with first George Olsen find of dinosaur eggs, Mongolia, 1925
ID: 410762
Distant view of the nest of the even dozen dinosaur eggs, Mongolia, 1925
ID: 410742
Walter Granger with assistant taking out nest of dinosaur eggs found by Norman Lovell, Mongolia, 1925
ID: 410763
Roy Chapman Andrews and George Olsen inspecting the even dozen dinosaur egg nest, Mongolia, 1925
ID: 410722
Expedition motor caravan atop the dinosaur beds, Mongolia, 1925
ID: ptc-5401
Nest of oviraptor eggs, Mongolia, found during Third Asiatic Expedition, 1925
ID: ptc-6999
Roy Chapman Andrews with dinosaur eggs from the Flaming Cliffs at Shabarakh Usu, 1925
ID: 4267
Corythosaurus, skeleton mounted on slab; pelvis and and limbs, 1926
ID: 335719
Cleaning and moving Agorgosaurus fossil skeleton, 1926
ID: 410796
Mastodon and mammoth teeth, 1926
ID: 311767
Dinosaur Hall, east wing, fourth floor, 1926
ID: 315109
Tyrannosaurus rex. left side, January, 1927
ID: 311875
Dinosaur Hall, southeast wing, fourth floor, 1927
ID: 311876
Hall of Dinosaurs, 1927
ID: 311901
Tyrannosaurus rex model, 1927
ID: 312166
Children studying Apatosaurus, Dinosaur Hall, 1927
ID: 311978
Trachodon Group, Brontosaurus and Allosaurus, Dinosaur Hall, 1927
ID: 311979
Brontosaurus model, Dinosaur Hall, 1927
ID: 311977
Tyrannosaurus rex, Dinosaur Hall, 1927
ID: 312229
Children viewing Brontosaurus (Apatosaurus) exhibit, 1927
ID: 265347
Albert Thomson and Chinese men covering bones of "Baron Sog monster" with burlap and flour paste, Mongolia, 1928
ID: 411005
Quarry of "Monster" bones, showing rib bone, lower jaw, humerus, femur, toe bone, Mongolia, 1928
ID: 411008
Walter Granger taking out skull of Titanothereum, lower white beds at Urtyn Obo, Mongolia, 1928
ID: 411009
Showing Titanothereum in lower white beds at Urtyn Obo, Mongolia, 1928
ID: 411013
Where dinosuar eggs were found at Erhlien near Boro in Sumu, Mongolia, 1928
ID: 411014
Roy Chapman Andrews and Walter Granger taking out dinosaur eggs at Erhlien, Mongolia, 1928
ID: 314960
Blazing the Trail and the Distant Past, painting by Arthur A. Jansson, 1929
ID: 312922
The horned lizard, Agathaumas sylvestris, drawing, 1929
ID: 312706
Children with wheelchairs viewing Tyrannosaurus rex and Triceratops, Dinosaur Hall, 1929
ID: 312962
Sketch of Naosaurus cruciger, Dimetrodon and Edaphosaurus Cope, by Edward Drinker Cope, 1886
ID: 312963
Edward Drinker Cope's 1889 drawing of Monoclonius spenocerus, New York
ID: ls4-23
Roy Chapman Andrews, Albert Thomson, and Walter Granger with fossils on the floor of the laboratory, Peking headquarters, 1930, (original negative by Mr. Timperley of Manchester Guardian)
ID: 411333
Protoceratops skull, front view, on base, 1930
ID: 274528
ID: 129041
Louise Waller Germann and John C. Germann assembling dinosaur skeleton, American Museum of Natural History, [1930-1940]
ID: ptc-5408
Barnum Brown examining outcrop during collecting foray, from hand-colored lantern slide, ca. 1930's
ID: ptc-5410
Dinosaur research collection temporarily laid out on floor, 1930s
ID: 313672
Henry Fairfield Osborn, Walter Granger, and Albert Thomson, Vertebrate Paleontology Laboratory, 1931
ID: 277281
Sketch for Triassic background mural in Dinosaur Hall, July 1932
ID: 313976
Stegosaurus with background, Hall of Dinosaurs, 1932
ID: 313965
Stegosaurus skeleton with background, left side view, July, 1932
ID: 314071
Trachodon mummy, December, 1932
ID: 314114
Monoclonius skull, showing left side, 1933
ID: 411458
Triceratops vertebrae, May, 1933
ID: 314222
Barnum Brown and assistants working on Hoplitosaurus fragments, August, 1933
ID: 314218
ID: 314221
ID: 314223
ID: 132806
Barnum Brown at Howe Quarry, Shell, Wyoming, 1934
ID: 132801
Howe Quarry, campsite, with suspended barrel for overhead photographs, Wyoming, 1934
ID: 126556p
Barnum Brown, D. A. McIntyre, and G.E. Lewis with expedition airplane, Wyoming or Colorado, 1934
ID: ptc-5409
Visitors, Howe Quarry excavation site, Jurassic Morrison formation, Wyoming, 1934
ID: 132804
Fossil specimen, Howe Quarry, Wyoming, 1934
ID: 132805
Team at Howe Quarry, Wyoming, 1934
ID: 331171
Dinosaur Quarry, camp and part of Howe Ranch, 25 miles northeast of Greybull, Wyoming, looking south, 1934
ID: 331172
Dinosaur Quarry, camp, Howe’s Ranch and road from Greybull, Wyoming, 1934
ID: 411494
Mr. Barnum Brown with model of Protosuchus richardsoni, 1934
ID: 411495
Eureodon kaiseni, sternal region, 1934
ID: 314524
Map of the dinosaur quarry, Wyoming, 1935
ID: 314661
Mounted skeleton of Protoceratops andrewsi and model of the nest, 1935
ID: 314804
Assembling bones for Nodosaurus, 1936
ID: 314802
Possibly Nodosaurus, showing external skeleton, 1936
ID: 314991
Plateosaurus, American Museum of Natural History, 1936
ID: 314992
Plateosaurus without head, American Museum of Natural History, 1936
ID: 315066
Casting skull of Styracosaurus, Otto Falkenbach at left, December, 1936
ID: 131847
Dr. Barnum Brown measuring dinosaur footprint on ceiling of Western Star Coal Mine, Cedaredge, Colorado, 1937
ID: 131845
R.T. Bird drilling out a dinosaur footprint in the Charles G. States Mine, Cedaredge, Colorado, 1937