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ID: ptc-5961
Diplurus newarki, coelacanth, Late Triassic of Princeton, New Jersey, approximately 220 million years ago
ID: ptc-5857
Symmorium reniforme, shark from the Late Carboniferous of Indiana (cast), about 310 million years old
ID: ptc-5960
Redfieldius gracilis, edfieldiid from the Late Triassic of Connecticut, approximately 210 million years old
ID: ptc-5834
Diplacanthus longispinus, an acanthodian [fish] from the Middle Devonian of Banffshire, Scotland, about 380 million years old, L 15 cm
ID: ptc-5845
Stethacanthus tumidus cast, spine and "brush" from the back of a shark, from the Early Carboniferous of Ohio, about 340 million years old
ID: ptc-5859
Pterolepis nitidus, anaspid from the Late Silurian of Rigerike, Norway, about 410 million years old, L 8 cm
ID: ptc-5825
Proganochelys, turtle that lived 210 million years ago, Hall of Vertebrate Origins
ID: ptc-5997
Perleidus madagascariensis, primitive extinct relative of neopterygian ray-finned fishes, approximately 225 million years old, Early Triassic of Madagascar
ID: ptc-6006
Eurypholis boisseri, extinct teleost, L 11 cm, approximately 90 million years old, Late Cretaceous of Lebanon
ID: ptc-5974
Many Phlebolepis sp., thelodont, approximately 410 million years old, L 6 cm, Late Silurian of Oesel, Latvia
ID: ptc-5855
Eomyrophis latispinus, primitive eel from the Early Eocene of Monte Bolca, Italy, about 57 million years old, L 24 cm
ID: ptc-5833
Saurichthys megacephalus, a streamlined ray-finned fish from the Middle Triassic of Como, Italy (cast), about 225 million years old, L 57 cm
ID: ptc-6001
Caturus velifer, caturid, L 57 cm, approximately 150 million years old, Late Jurassic of Solnhofen, Germany
ID: ptc-5995
Palaeoniscum freislebeni, primitive ray-finned fish, L 19 cm, approximately 250 million years old, Late Permian of Saxony, Germany
ID: ptc-5959
Pachycormus esocinus, pachycormid teleost from the Early Jurassic of Holzmaden, Germany, approximately 200 million years old
ID: ptc-5860
Gemuendina stuertzi, rhenanid placoderm from the Early Devonian of Hunsruck, Budenbach, Germany (cast), about 400 million years old
ID: ptc-5856
Ischyodus avitus, chimaeroid (rabbitfish) from the Late Jurassic of Solnhofen, Germany
ID: ptc-5853
Protospinax annectans from the Late Jurassic of Solnhofen, Germany, 150 million years old
ID: ptc-5854
Bobasatrania canadensis, Triassic of British Columbia, Canada, about 225 million years old, length of preserved part 67 cm, restoration in metal by Richard Weber
ID: ptc-6010
Skeleton of Rhacolepis buccalis inside stomach of Notelops brama, approximately 110 million years old, Early Cretaceous of Brazil
ID: ptc-5999
Extinct pycnodont fish, L 30 cm, approximately 110 million years old, early Cretaceous of NE Brazil
ID: ptc-5976
Tharrhias araripis, extinct relative of milk-fish, approximately 110 million years old, Early Cretaceous of Brazil
ID: ptc-5971
Araripichthys castilhoi, approximately 110 million years ago, Early Cretaceous of Brazil
ID: ptc-5957
Dastilbe crandalli, freshwater teleost from the Early Cretaceous of Brazil, about 110 million years ago
ID: ptc-5846
Obaichthys, a primitive gar from the Early Cretaceous of Brazil, 110 million years old
ID: ptc-5824
Vinctifer comptori, Early Cretaceous approximately 100 million years ago, Brazil
ID: ptc-5823
Calamopleurus cylindricus, Early Cretaceous, 110 million years ago, L 91cm, Brazil
ID: ptc-5822
Complete skeleton of Rhacolepis buccalis, Early Cretaceous, about 110 million years old, Brazil
ID: ptc-5821
Cladocyclus Gardneri, early Cretaceous, approximately 110 million years ago, L 111 cm, Brazil
ID: ptc-5827
Fossil fish Sacabambaspis Janvieri, an ostracoderm from the Late Ordovician of Bolivia (cast), about 450 million years old
ID: ptc-5871
Eastmanosteus calliaspis, an arthrodire, from the front, approximately 375 million years old, length of armor 19 cm, estimated body length 45 cm, Late Devonian, Western Australia
ID: ptc-5958
Hypsidoris farsonensis, primitive catfish from the Eocene of Wyoming, United States, about 57 million years old
ID: ptc-5831
Priscacara oxyprion, from the Early Eocene of Wyoming, about 57 million years ago
ID: ptc-5828
Knightia eocaena, numerous small herrings representing a mass mortality, Early Eocene of Wyoming, United States, about 57 million years old, length of each individual shown, 9 cm
ID: 2A23737a
Pterodon longiceps, late Cretaceous period
ID: 2A23737
Skeleton of Pterodon longiceps, late Cretaceous period, 1996
ID: ptc-6756
Tyrannosaurus rex, under construction, Hall of Saurischian Dinosaurs, 1995
ID: ptc-6755
Megalocnus rodens, great sloth, collected by Barnum Brown, Cienfuegos, Cuba in 1911
ID: ptc-6754
Edaphosaurus pogonias, Hog Creek, Texas; Glossotherium robustus, Argentina; Phascolonus gigas, Lake Callabonna, South Australia, Hall of Primitive Mammals
ID: ptc-6753
Edaphosaurus boanerges from Texas
ID: ptc-6752
Evolution of mammals exhibit, detail showing Glossotherium robustus, Argentina; Phascolonus gigas, Lake Callabonna, South Australia, Hall of Primitive Mammlals
ID: ptc-6028
Barosaurus, detail of neck vertebrae in mount, Theodore Roosevelt Rotunda, American Museum of Natural History
ID: ptc-5932
Lungfish, Ceratodus rumcinatus, toothplates, each about 4 cm long, about 210 million years old, Late Triassic, Wurtemberg, Germany
ID: ptc-5783
Skull, Pachycephalosaurus wyomingensis, Montana
ID: ptc-5577
Skull and jaws,Tyrannosaurus rex, three-quarters view, Hall of Saurischian Dinosaurs, 1995
ID: ptc-5493
Tyrannosaurus rex
ID: ptc-5757
Feathers in amber, 25 to 30 million years old
ID: ptc-5758
Praying mantis and ants in amber, 25 to 30 million years old, Dominican amber, private collection, 1995
ID: ptc-5813
Tyrannosaurus rex in foreground, Apatasaurus in background, Hall of Saurischian Dinosaurs under construction, 1995
ID: ptc-5816
Allosaurus, Hall of Saurischian Dinosaurs under construction, 1995
ID: ptc-5815
Tyrannosaurus rex, Hall of Saurischian Dinosaurs under construction, 1995
ID: ptc-5513
Gomphotherium, Paul and Irma Milstein Hall of Advanced Mammals, Lila Acheson Wallace Wing of Mammals and their Extinct Relatives, 1995
ID: ptc-5512
Mammals of the Upper Pliocene Period, painting by Charles R. Knight, 1930, Paul and Irma Milstein Hall of Advanced Mammals, Lila Acheson Wallace Wing of Extinct Mammals, 1995
ID: ptc-5511
Paul and Irma Milstein Hall of Advanced Mammals, southeast corner, Lila Acheson Wallace Wing of Mammals and their Extinct Relatives, 1995
ID: ptc-5819
Allosaurus mount after construction, Hall of Saurischian Dinosaurs, 1995
ID: ptc-5818
ID: ptc-6442
Apatosaurus, Hall of Saurischian Dinosaurs under construction, 1995
ID: ptc-6441
Apatosaurus, Hall of Saurischian Dinosaurs under construction
ID: ptc-6440
ID: ptc-6439
ID: ptc-6746
Anatotitan copei, duckbill dinosaur, Hall of Ornithischian Dinosaurs, 1995
ID: ptc-6745
Mounted bones of an adult Stegosaurus over reconstruction of juvenile Stegosaurus, Hall of Ornithischian Dinosaurs, 1995
ID: ptc-6742
Three Toed Hind Foot display, Hall of Saurischian Dinosaurs, 1995
ID: ptc-6743
Mounted dinosaur displays, view looking down the evolutionary pathway, Tyrannosaurus rex left, Apatosaurus right, Hall of Saurischian Dinosaurs, 1995
ID: ptc-6551
Tyrannosaurus rex under construction, Hall of Saurischian Dinosaurs, 1995
ID: ptc-6550
Tyrannosaurus rex under construction, tail of Apatosaurus in foreground, Hall of Saurischian Dinosaurs, 1995
ID: ptc-6000
Pholidophorus, primitive marine teleost, Late Triassic and Early Jurassic, 220-175 million years ago
ID: ptc-5492
Allosaurus mount, Hall of Saurischian dinosaurs
ID: ptc-5491
Apatosaurus
ID: ptc-5370
Ammonite, fossil
ID: ptc-6002
Sauripteris taylori, pectoral fin and shoulder girdle of extinct rhizodontid fish, Late Devonian of Blossburg, PA, approximately 375 million years old
ID: ptc-5829
Phareodus testis, about 57 million years old, L 34 cm, Early Eocene of Wyoming, United States
ID: ptc-6003
Dipterus valenciennesi, extinct lungfish, L 17 cm, approximately 380 million years old, Middle Devonian of Achanarras, Scotland
ID: ptc-5970
Cheirolepis trailli, primitive ray-finned fish, approximately 380 million years old, L 25 cm, Middle Devonian of Nairnshire, Scotland
ID: ptc-5998
Scyliorhinus elongatus, dogfish shark, L 23 cm, approximately 90 million years old, Middle Cretaceous of Lebanon
ID: ptc-5962
Mene rhombeus, carangid-like acanthomorph, approximately 57 million years old, L 20 cm, Early Eocene of Monte Bolca, Italy
ID: ptc-5969
Leptolepides sprattiformis, primitive teleost, L 10 cm, Late Jurassic of Solnhofen, Germany
ID: ptc-6005
Axelrodichthys araripensis, coelacanth, L 70 cm, approximately 110 million years ago, Early Cretaceous of NE Brazil
ID: ptc-5356
Fossil fish, Brazil
ID: ptc-5852
Heliobatis, female freshwater stingray from the Eocene of Wyoming [Green River formation]
ID: ptc-5830
Lepisosteus simplex, fossil gar from the Eocene of Wyoming, United States, about 57 million years old
ID: ptc-5748
Evolution of the Horse, Hall of Advanced Mammals, Lila Acheson Wallace Wing of Mammals and their Extinct Relatives, 1994
ID: ptc-5270
Ursus spelaeus, European cave bear, Fossil Mammal Hall
ID: ptc-5187
Jefferson Mammoth, Paul and Irma Milstein Hall of Advanced Mammals, 1994
ID: ptc-5177
Jefferson mammoth, head-on view, Paul and Irma Milstein Hall of Advanced Mammals, 1994
ID: K17248
Dr. Luis Chiappe examining fossils, Gobi Desert, Mongolia, 1993
ID: ptc-7740
Skin print, fossilized impression of Corythosaurus skin, found by Barnum Brown
ID: 600837_27
Visitors viewing Irish Elk skeleton exhibit, Osborn Mammal Hall, December 1990
ID: 600837_17
Fourth floor skeleton exhibit, pre-reconstruction of fourth floor, December 1990
ID: 600837_14
Pecora exhibit, Hall of Late Mammals, December 1990
ID: 600837_07
[Skeleton and antlers of Irish Elk], mural in the background, Osborn Mammal Hall, December 1990
ID: 600837_04
Mural above skull exhibit, Osborn Mammal Hall, December 1990
ID: 600833_09
Dinosaur fossils and skeletons, Hall of Late Dinosaurs, November, 1990
ID: 600833_01a
Pterosaur mural, entryway, sections 9 and 12 of fourth floor, Hall of Late Dinosaurs, November, 1990
ID: 600827_28
Dinosaur skeleton with nest of eggs, Hall of Late Dinosaurs, November 1990
ID: 600827_20
Center skeleton exhibit, duck-billed dinosaurs, Hall of Late Dinosaurs, November 1990
ID: 600827_15
ID: 600827_07
Fossil exhibits, fourth floor, section 9, Hall of Late Dinosaurs, November 1990
ID: 600827_03
Triceratops skull and fossil exhibits, fourth floor, section 9, Hall of Late Dinosaurs, November 1990
ID: 600834_14
Life of the Eocene, fourth floor, section 5, Hall of Early Mammals, November 1990