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ID: 322448
Evolution of the Horse, detail, Age of Mammals Hall, 1953
ID: 322011
Coelophysis skeleton
ID: 320360
Slab Diplurus mengicaudatus N., Durham, Connecticut, August, 1947
ID: 319634
Fossil slab consisting of Glen Dean Limestone, about 260 million old, from area near Crane, Indiana, September, 1945
ID: 319456
Pachycephalosaurus grangeri type skull, from Montana
ID: 317590
Pareiasaurus skeleton, left side, October, 1940
ID: 315310
Mounted skeleton of Styracosaurus, left side, July, 1937
ID: 315286
Cover of box in which a model of a Sinanthropus Pekiensis skull was shipped to Roy Chapman Andrews at the American Museum of Natural History from China, 1937
ID: 314802
Possibly Nodosaurus, showing external skeleton, 1936
ID: 314223
Barnum Brown and assistants working on Hoplitosaurus fragments, August, 1933
ID: 314221
ID: 314218
ID: 314114
Monoclonius skull, showing left side, 1933
ID: 314071
Trachodon mummy, December, 1932
ID: 313370
Fossil land tortoise (Colossochelys atlas, Megalochelys atlas), front view, from Siwalik Hills, November, 1930
ID: 310443
Triceratops, mounted skeleton, right side view, 1923
ID: 310433
Triceratops, top view of skull, circa 1923
ID: 310314
Mounted Diprotodon skeleton, side view
ID: 310309
Eryops, mounted skeleton, right side view, circa 1923
ID: 310269
Paleoscincus
ID: 19785
Individual ammonites, illustration
ID: 19784
ID: 19783
ID: 19782
ID: 19781
ID: k16706
Barosaurus model, Theodore Roosevelt Rotunda, circa 1991
ID: 274528
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: 314222
ID: 131510
Reconstruction of lower jaw of Sagenodus, a fossil dipnoan fish, in Watson and Gill, 1923
ID: 131503
Fossil footprints, plate 12 from the Bulletin of Geological Society of America, Vol. 38, 1936
ID: 129041
Louise Waller Germann and John C. Germann assembling dinosaur skeleton, American Museum of Natural History, [1930-1940]
ID: 132245
Glen Rose Trackway from Paluxy River, Texas installed at the American Museum of Natural History, 1952
ID: 132804
Fossil specimen, Howe Quarry, Wyoming, 1934
ID: 131482
Corythosaurus skeleton excavated by Barnum Brown in Belly River beds near Steveville, Alberta, Canada, 1912
ID: 36215
Monoclonius skeleton, on work table with cases of specimens in lab, 1917
ID: 36213
Monoclonius skeleton, 1917
ID: 35882
Ankylosaurus magneventris
ID: 35874
Ceratops kaiseni skull, side
ID: 35605
Mounted skeleton of Cryptocleidus (plesiosaur)
ID: 35580
Tyrannosaurus rex skeleton model, exhibit under construction
ID: 35579
ID: 35425
Mounted skeleton of Trachodon mirabilis
ID: 34711
Archaeopteryx siemensii
ID: 18343
Triceratops skull
ID: 2A7289
Carcharodon fossil tooth and modern shark tooth, 1963
ID: 251502
Baluchitherium skull in situ, [Mongolia, 1922]
ID: 36246
Brontosaurus (Apatosaurus) skeleton, American Museum of Natural History, 1917
ID: 35888
Ankylosaurus magneventris, top of tail
ID: 35881
Ankylosaurus magneventris, left
ID: 104456
Moropus sacrum, ventral
ID: 104455
Moropus sacrum, side view
ID: 104454
Moropus left fore foot, outer view
ID: 104453
Moropus, left hind foot, outer view, mounted and on exhibit, circa 1910
ID: 104451
Moropus, left foot, inner view
ID: 36216
Monoclonius skeleton, right side, 1917
ID: 362
Fossil Hall, circa 1900
ID: 36044
Complete Merycochoerus skeleton in place, Rosebud Beds
ID: 35923
Tyrannosaurus rex skeleton, in the process of mounting
ID: 35876
Corythosaurus casuarius, head
ID: 35871
Triceratops skull, side view
ID: 35658
Monoclonius skull, side view
ID: 35635
Mounted skeleton of Diadectes, top view
ID: 35609
Trachodon mummy, abdomen
ID: 35608
Trachodon mummy, detail of chest
ID: 35607
Trachodon mummy, with skin
ID: 35583
Macrauchenia skeleton, cast
ID: 35552
Diadectes, jaw
ID: 35424
Tyrannosaurus rex-type skull
ID: 35423
Tyrannosaurus rex, pelvis and limbs, circa 1910
ID: 35094
Patriofelis ferox, mounted skeleton
ID: 35048
Allosaurus fragilis, mounted skull 666, circa 1910
ID: 35041
Ichthyosaurus quadriscissus skeleton and young, American Museum of Natural History
ID: 46621
Illustration of man digging near Saurolophus skeleton in quarry
ID: 411495
Eureodon kaiseni, sternal region, 1934
ID: 411333
Protoceratops skull, front view, on base, 1930
ID: 410796
Mastodon and mammoth teeth, 1926
ID: 18468
Peace Creek near Zalfo Florida, phosphate banks containing numerous fossils, [1924-1930]
ID: 18467
ID: 18466
ID: 18465
ID: 17583
Delphinognathus radius and ulna
ID: 17582
ID: 17581
Delphinognathus humerus
ID: 17580
ID: 17579
Delphinognathus femur, showing front and back
ID: 17578
Eryops skeleton, dorsal oblique
ID: 17577
Eryops skeleton
ID: 17576
Gravigrade jaw
ID: 17575
Gravigrade jaw, inferior
ID: 17574
Gravigrade jaw, superior
ID: 17573
Gravigrade jaw, side
ID: 17572
Megalocnus skull palate
ID: 17571
Megalocnus skull, top
ID: 17570
Megalocnus skull, side
ID: 17569
Mesatirhinus petersoni skull, right side longitudinal section and brain cast, circa 1909
ID: 17568
Mesohippus, mounted skeleton
ID: 17563
Freeing bones from matrix
ID: 17562
ID: 17561
Hesperornis, mounted skeleton, view of right side
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