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ID: 35961
Paleontology expedition to the Wasatch Badlands, Wyoming, teams in distance, 1896
ID: 35962
Expedition to the Wasatch Badlands, horse team in distance, Wyoming, 1896
ID: ptc-2428
Mesonyx
ID: 257799
Skull of male Protoceras celer from the Miocene, 1897
ID: ptc-994
Hoplophoneus
ID: 333908
Dr. Edward Drinker Cope's office at Pine Street, Philadelphia, 1897
ID: 100205623
Agathaumas (Monoclonius), painting by Charles Knight, 1897
ID: 100205624
Dryptosaurus (Leaping Laelaps), painting by Charles Knight, 1897
ID: 100209958
Hadrosaurs, painting by Charles Knight, 1897
ID: 100213321
Elasmosaurus, watercolor by Charles R. Knight, 1897
ID: 17808
Osborn and Brown developing Diplodocus prospect, Wyoming, 1897
ID: ptc-5417
Dinosaur bones transported by wagon loaded onto Union Pacific railroad cars for the journey to New York, 1898
ID: ptc-208
Cervalces
ID: ptc-1276
Teleoceras, watercolor painting by Charles R. Knight, 1898
ID: b10007775
Apatosaurus, painting by Charles Knight, 1898
ID: 17833
Dinosaur limb and foot uncovered, Bone Cabin Quarry, Wyoming, 1898
ID: 17861a
Walter Granger, Norman Grant, and H .W. Menke hoisting large specimen in box, Bone Cabin Quarry, Wyoming, 1898
ID: 17863a
Loading boxes, Medicine Bow, Wyoming, 1898
ID: 35044
Mr. Hermann with mounted Diplodocus, Brontosaurus, and Allosaurus forelimbs, 1899
ID: ptc-2425
Tylosaurus dyspelor, by Charles R. Knight, 1899
ID: 17909
Plastering brontosaurus vertebrae, Nine Mile Quarry, Wyoming, 1899
ID: 410686
Fossil Mammal Hall, 1900
ID: 361
Geological Hall, 1900
ID: 18001
Goodnight Ranch, Texas, 1900
ID: 45615
Vertebrate Paleontology preparator Adam Hermann with cast of Brontosaurus (Apatosaurus) skull
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: 100219464
Stegosaurus, painting by Charles Knight, 1901
ID: ptc-2438
Phorusrhacos
ID: ptc-1017
Smilodon
ID: 100209950
Ornitholestes catching an Archaeopteryx, drawing by Charles R. Knight, 1903
ID: ptc-202
Allosaurus, painting by Charles R. Knight, 1904
ID: ptc-1001
Dinictis Chasing Protoceras, painting by Charles R. Knight, 1904
ID: ptc-2418
ID: ptc-2434
Platygonus
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: 28751
Hauling 4100-pound block out of Tyrannosaurus rex Quarry by horse-drawn cart, Hell Creek, Montana, 1905
ID: ptc-656
Eohippus, restoration painting by Charles R. Knight
ID: ptc-259
Hipparios
ID: 17502
Allosaurus fragilis, partly mounted skeleton, oblique top, front view, American Museum of Natural History, 1905
ID: 17503
ID: 100219814
Diplodocus, by Charles Knight, 1905
ID: ptc-654
Hypohippus
ID: 17532
Great Carnivorous Dinosaur Deindon, Preliminary Restoration, with human skeleton for some scale by W. Matthew, 1905
ID: ptc-652
Equus scotti, painting by Charles R. Knight
ID: ptc-995
Mesohippus
ID: ptc-1327
Patriofelis and crocodile, restoration painting by Charles R. Knight
ID: 17540
Mounted Allosaurus skeleton, 3/4 front, American Museum of Natural History, 1907
ID: 17541
Men standing with mounted Allosaurus skeleton, 3/4 front, American Museum of Natural History, 1907
ID: 100219816
Arsinoitherium attacked by pterodons, painting by Charles Knight, 1907
ID: 31739
Moving Mastodon Americanus, 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: 28976
Blasting Tyrannosaurus rex quarry, Big Dry Creek, 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: 46620
Restoration illustration of a Tyrannosaurus Rex skeleton with human for scale, American Museum of Natural History Bulletin, Vol. XXII
ID: 319969
Seated in fossil shark jaw restoration, 1909
ID: 17548
Eryops skull, 1909
ID: 17549
Diplocaulus limbatus skull, 1909
ID: 100219465
Woolly mammoth and hunter, painting by Charles Knight, 1909
ID: ptc-1774
Anatosaurus
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: 17530
Equus complicatus molars with degrees of wear, illustration
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: 18446
Looking south across Darsey Crater, 2 miles above Blakesley's Ranch, bluff in middle, right distance, 1910
ID: 32603
Restoration of Carcharodon megalodon jaws, Fossil Fish Hall, 1910
ID: 18441
Expedition members at St. Joe, Wyoming, 1910
ID: 32920
Geological Hall, 1910
ID: 33398
Devonian fossil aquarium group, Old Red Sandstone, Scotland, Fish Gallery, 1910
ID: 17550
Diplocaulus skull and part of skeleton
ID: 17551
California cave bear and modern bear skulls
ID: 17559
Tyrannosaurus rex skull, palate, illustration
ID: 17561
Hesperornis, mounted skeleton, view of right side
ID: 17562
Freeing bones from matrix
ID: 17563
ID: 17564
Pouring gelatine into mould