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John Ostrom

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469: 547: 740: 556: 496:, Ostrom concluded that hadrosaurs likely developed an acute sense of smell by a lengthening of the nasal passages into long chambers that wound around the skull and were protected by bony crests. He speculated in a subsequent paper that hadrosaurs had need for such an acute sense of smell as a defense against larger carnivorous dinosaurs, of which the hadrosaur body plan had little in the way of armor and speed. 31: 649:
Due in large part to his earlier research on hadrosaursβ€”and his conclusion that they were likely upright, terrestrial animals rather than sluggish, swamp-bound lizardsβ€”Ostrom was one of the first paleontologists to grasp the implications of the amount of energy it would take such large animals (and
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This hypothesis led Ostrom to further conclude that ecology of hadrosaurs was more likely to be that of dry ground such as conifer forests, rather than swampy, aquatic environments, thought to be the case at the time. This idea was further justified by a 1922 paper that Ostrom rediscovered in 1964,
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was an active predator that clearly killed its prey by leaping and slashing or stabbing with its "terrible claw", the meaning of the animal's genus name. Ostrom also suggested that it had hunted in packs. John Ostrom's work on the functional morphology of dinosaurs found that the claws and tendon
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In considering the possible evolution of flight, Ostrom theorized that birds might have evolved the ability for powered flight as a result of cursorial, or ground-upward movement such as leaping up to capture prey. This position was opposed to the arboreal hypothesis in which activities such as
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have since been destroyed. As early as October 20, 1884, stones from the Wolcott Quarry, reportedly containing fossils, were used to build a local bridge. In 1969, Ostrom surveyed over 60 bridges to find the missing blocks. They were part of a bridge over Hop Creek at Bridge Street which was
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Ostrom worked in the Cloverly Formation Site in Montana and Wyoming from 1962 to 1966. Late in 1964, he detected unfamiliar fossils in the Bridger Fossil Area, near the town of Bridger, Montana. In subsequent seasons, his team unearthed four specimens of a small bipedal carnivorous
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scheduled for replacement. The highway department allowed Ostrom and his team to examine 400 sandstone blocks to find dinosaur fossils. Despite lobbying to preserve it, a shopping mall was built on the site of the Charles O. Wolcott Quarry in 2000.
736:. He suggested that dinosaurs, far from becoming extinct, had evolved into a wide variety of descendants in the form of birds. Ostrom's work led to a revolution in the classification of fossils and the understanding of dinosaur-bird lineages. 614:
changed depictions of dinosaurs both by professional illustrators and as perceived by the public eye. Museums worldwide changed their dinosaur bone displays. The altered view of dinosaurs inspired a new generation of dinosaur movies such as
828:(meaning "Ostrom's menace from the clouds") in honour of John Ostrom. The fossil is that of a primitive winged creature with a two-foot wingspan, feathers and a sickle-shaped claw on its second toe designed for slashing prey, similar to 337:
as his advisor. In 1951 Simpson invited Ostrom to spend the summer as a field assistant in the San Juan Basin of New Mexico. Ostrom also worked as a research assistant with Colbert, who was the Curator of Vertebrate Paleontology at the
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running along the tail, providing a stiff counterbalance for jumping and running. This changed the posture of bipedal dinosaurs to one of agile, fast-running, fearsome predators. He concluded that at least some dinosaurs had a high
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by Bakker to describe increased interest in paleontology. The "dinosaur renaissance" continues, with scientists describing new species of dinosaurs every year and expanding the understanding of dinosaur biology.
668:. Ostrom supported this view by noting the correlation of erect posture and locomotion with high metabolism and body temperature in modern mammals and birds, stating that this relationship cannot be accidental. 484:
Ostrom's work first achieved international attention with his studies of the unique hadrosaur nasal apparatus, which had not been convincingly explained by the early 1960s. By examining the
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Ostrom officially retired from Yale in 1992, but continued to write and research as a professor emeritus until his health failed. Ostrom died from complications of
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Anatomy and phylogenetic relationships of the theropod dinosaur Microvenator celer from the Lower Cretaceous of Montana. American Museum novitates ; no. 3240
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As a result of subsequent research and comparison with more recently found specimens from the Tiaojushan Formation of China, it was suggested in 2017 that the
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for John Ostrom and Chris Mays. The largest discovered example of this species is 23 feet long and had an estimated live weight over 1000 pounds.
521:. He mapped the site, identifying preserved dinosaur tracks in the sandstone beds of various sizes and species. Ostrom's reading of fossilized 314:, he originally aimed to prepare for medical school in order to become a physician like his father. However, an elective course in geology and 2081: 3005: 728:. Ostrom's 1970 paper (and 1972 description) identified it as one of only four specimens known to exist at that time. In his 1973 paper in 1711: 2327: 262:(1926). Prior to Ostrom's work, the development of birds was generally believed to have split off early on from that of dinosaurs. 2145: 468: 3025: 1608:"The oldest Archaeopteryx (Theropoda: Avialiae): a new specimen from the Kimmeridgian/Tithonian boundary of Schamhaupten, Bavaria" 2514: 2446: 3015: 732:, "The Ancestry of Birds", Ostrom argued for a coelurosaurian (Theropoda) ancestry of birds, based on the skeletal anatomy of 2219: 1166: 1347: 294:, confirming his theories about dinosaurs being progenitors of birds, and the existence of dinosaurs with feathered plumage. 664:
climates were universally tropical and that such warm climates would be necessary to sustain large animals with lizard-like
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The observation that dinosaurs, thought to be uniformly cold-blooded at the time, could not be used as indicators of
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Throughout his career, Ostrom led and organized fossil-hunting expeditions to Wyoming and Montana. He worked in the
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Getty, Patrick R.; Aucoin, Christopher; Fox, Nathaniel; Judge, Aaron; Hardy, Laurel; Bush, Andrew M. (March 2017).
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scars in the tail would indicate a running position. Evidence of a truly active lifestyle included long strings of
342:(AMNH), Ostrom earned his doctorate in geology (vertebrate paleontology) in 1960 with a thesis on North American 147: 369:, where he remained throughout his career. As a new professor at Yale, Ostrom was named the assistant curator for 3030: 806: 514: 2164: 265:
Ostrom showed more bird-like traits common in dinosaurs and proved that birds themselves are in fact a group of
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Tarsitano, Samuel F.; Russell, Anthony P.; Horne, Francis; Plummer, Christopher; Millerchip, Karen (2000).
1885:"Days of the Deinos : Did predatory dinosaurs leave clues to their pack-hunting habits at kill sites?" 527:
trackways led him to the conclusion that these duckbilled dinosaurs were gregarious and traveled in herds.
2300: 951: 421: 2253:"Perennial Lakes as an Environmental Control on Theropod Movement in the Jurassic of the Hartford Basin" 416:("because the governor was besieged by letters from schoolchildren swayed into dino-mania by Ostrom".). 2787:"Evolution of Vertebrate Flight: An Aerodynamic Model for the Transition from Gliding to Active Flight" 430: 2904: 811: 706:
Ostrom's interest in the dinosaur-bird connection started with his study of what became known as the
389: 1245: 2580:"Re-evaluation of the Haarlem Archaeopteryx and the radiation of maniraptoran theropod dinosaurs" 692: 502: 449: 437: 413: 370: 86: 1527:"John Ostrom's Studies on Archaeopteryx, the Origin of Birds, and the Evolution of Avian Flight" 1284: 1131:"Remarkable new birdlike dinosaur (Theropoda: Maniraptora) from the Upper Cretaceous of Montana" 932:"Osteology of Deinonychus antirrhopus, an unusual theropod from the Lower Cretaceous of Montana" 349:
In 1952 Ostrom married Nancy Grace Hartman (d. 2003). They had two daughters, Karen and Alicia.
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The dinosaur heresies: new theories unlocking the mystery of the dinosaurs and their extinction
798: 713:. Discovered in 1855, it was actually the first specimen recovered but, incorrectly labeled as 656:) to stand and move erect. At the first North American Paleontological Convention, held at the 518: 445: 315: 240:
Further, Ostrom's work made zoologists question whether birds should be considered an order of
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Ostrom, JH (1972). "Description of the Archaeopteryx specimen in the Teyler museum, Haarlem".
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was considered radical at the time, but its ability to resolve outstanding contradictions in
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Burnham, D. A.; Bakker, R. T.; Currie, P. J.; Ostrom, J. H.; Kraig, L. D.; Zhou, Z. (2000).
2995: 2990: 2692: 2369: 2358:"Shake a tail feather: the evolution of the theropod tail into a stiff aerodynamic surface" 2264: 1982: 1406: 1257: 1053: 963: 908: 657: 631: 217: 136: 124: 8: 1365:"Creating the Proavis: bird origins in the art and science of Gerhard Heilmann 1913–1926" 1110: 636: 493: 384:
Site in Montana and Wyoming from 1962 to 1966. By 1964 he had made 10 expeditions to the
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inspired him to change his career plans. He earned his bachelor's degree in biology and
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In the field of paleontology, Ostrom is responsible for the following key discoveries:
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immediately drew many followers, and would be supported by many future discoveries.
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actually represents a separate taxon. The genus has been given the generic name
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lizards, which had prevailed since the turn of the century. The implications of
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in 1964, Ostrom challenged the widespread belief that dinosaurs were slow-moving
42: 2748:"On the Evolution of Feathers from an Aerodynamic and Constructional View Point" 766:, after John Ostrom. The Haarlem fossil is now considered to be of the species 675:
was further validated in 1973 with the discovery of hadrosaur fossils above the
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fossils from the Cloverly Formation. In 1966 John H. Ostrom helped to establish
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which described the stomach contents of a mummified specimen of the hadrosaur
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gliding down from trees were suggested to have been a precursor to flight.
715: 680: 404: 311: 303: 282: 266: 111: 101: 64: 2705: 2236: 1971:"The Postcranial Skeleton of the Ornithopod Dinosaur Tenontosaurus tilletti" 1422: 1380: 2732: 2623: 2482: 2466:"Celebrating dinosaurs: their behaviour, evolution, growth, and physiology" 2465: 2401: 1789: 1643: 1503: 1440: 684: 607: 596: 188: 174: 921: 896: 1756:"Generations: Tracking American Paleontology and Anatomy Over 17 Decades" 725: 579:
fossils is considered one of the most important fossil finds in history.
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Pittman, M; Gatesy, SM; Upchurch, P; Goswami, A; Hutchinson, JR (2013).
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Ostrom, John H. (1962). "The cranial crests of hadrosaurian dinosaurs".
2818: 2786: 2771: 2747: 2010: 1970: 1624: 1550: 1526: 688: 676: 665: 592: 343: 1733:. Notable Scientists. New York: Facts on File, Inc. pp. 193–195. 248:. The idea that dinosaurs were similar to birds was first proposed by 2870: 2657: 1772: 1755: 1024: 606:
This helped to change the impression of dinosaurs as sluggish, slow,
485: 277: 273: 2515:"A Yale scientist's research changed our understanding of dinosaurs" 573:, and parts of a larger plant-eating dinosaur. The discovery of the 2802: 2554:
Russell, Dale A. (1973). "The environments of Canadian dinosaurs".
864:"Cranial morphology of the hadrosaurian dinosaurs of North America" 841: 762: 661: 570: 269: 241: 209: 2860: 2108:"John Ostrom, 77; Paleontologist Pursued Dinosaurs' Link to Birds" 2924:"The Continuously Evolving Picture of the World's Largest Raptor" 2842:"How Flight Evolved in Birds: The Flying and Feathered Dinosaurs" 1111:"The Munich specimen of Triceratops with a revision of the genus" 897:"A reconsideration of the paleoecology of hadrosaurian dinosaurs" 754: 707: 489: 323: 1907:"A New Species of Small Dinosaur Reported Found by Yale Curator" 286:
appeared in 1976. Ostrom lived to see the eventual discovery of
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Lucas, Frederic A. (1904). "The dinosaur Trachodon annectens".
587: 230: 2539:"Terrestrial vertebrates as indicators of Mesozoic climates". 2329:
Predatory dinosaurs of the world: a complete illustrated guide
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Dinosaurs and Other Extinct Saurians: A Historical Perspective
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Proceedings of the North American Paleontological Convention
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dinosaurs. The first of Ostrom's broad-based reviews of the
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10.1666/0094-8373(2006)032[0109:NCHACC]2.0.CO;2
2082:"Mystery Solved: Bones found in Bridge – GeologyWriter.com" 1712:"John H. Ostrom, Influential Paleontologist, Is Dead at 77" 660:
in 1969, Ostrom spoke out against the accepted wisdom that
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the following year. In 1961 he accepted a professorship at
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that was based on the skull collection housed at the AMNH.
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Foth, Christian; Rauhut, Oliver W. M. (2 December 2017).
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The Hot-Blooded Dinosaurs: A Revolution in Palaeontology
1681:"Collection: John H. Ostrom Archives | Archives at Yale" 436:
Others sites such as the Charles O. Wolcott Quarry near
1815:. United States: Elsevier Science. pp. xxix–xxx. 2220:"A Four-Legged Megalosaurus and Swimming Brontosaurs" 1605: 3041:
Presidents of the Society of Vertebrate Paleontology
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Deaths from Alzheimer's disease in the United States
2447:"Deinonychus Changed Our Understanding of Dinosaurs" 2424:(Second ed.). Oxford: Oxford University Press. 1405:
Havstad, Joyce C; Smith, N Adam (1 September 2019).
204:(February 18, 1928 – July 16, 2005) was an American 2250: 1862:John Ostrom | American paleontologist | Britannica 1342:. Geological Society of London. pp. 237–250. 1285:"Influential Paleontologist John Ostrom, 77, Dies" 1135:University of Kansas Paleontological Contributions 1478:"Ornithischian Dinosaurs and the Origin of Birds" 1407:"Fossils with Feathers and Philosophy of Science" 956:Palaeogeography, Palaeoclimatology, Palaeoecology 939:Bulletin of the Peabody Museum of Natural History 809:, Robert Gaston, and Donald Burge named a fossil 377:. He became full professor and curator in 1971. 2982: 1167:"The fossil that launched a dinosaur revolution" 1108: 2685:Proceedings of the National Academy of Sciences 619:, which based its murderous "Velociraptors" on 208:who revolutionized the modern understanding of 2681:"Paleobiology and the origins of avian flight" 2301:"Dinosaur Footprints Reservation, Holyoke, MA" 793:its formal name (meaning "fast small hunter"). 1606:Rauhut, OWM; Foth, C; Tischlinger, H (2018). 1046:Annual Review of Earth and Planetary Sciences 1404: 1329: 1327: 781: 310:. As a pre-medical undergraduate student at 2942:"UNIQUE 'DINO-BIRD' FOSSIL FOUND IN AFRICA" 1938: 1936: 1934: 1932: 1930: 1928: 1810: 560:"The Raptor That Made Us Rethink Dinosaurs" 297: 2577: 2335:. New York, N.Y. u.a: Simon and Schuster. 1964: 1962: 1878: 1876: 1874: 1872: 1333: 1160: 1158: 1156: 29: 2858: 2852: 2739: 2722: 2704: 2613: 2595: 2481: 2413: 2411: 2391: 2381: 2276: 2235: 2197:. Great Britain: Blond & Briggs Ltd. 2105: 1771: 1675: 1673: 1671: 1633: 1623: 1601: 1599: 1597: 1493: 1430: 1400: 1398: 1324: 1209: 1207: 1205: 1203: 1201: 1199: 1197: 1178: 1090:Biological Journal of the Linnean Society 920: 2859:Makovicky, Peter J.; Sues, Hans-Dieter. 2079: 2073: 1942: 1925: 1811:Curie, Philip J.; Padian, Kevin (1997). 1524: 1518: 1460: 1239: 1237: 1164: 855: 738: 467: 212:. Ostrom's work inspired what his pupil 2839: 2833: 2784: 2778: 2573: 2571: 2569: 2553: 2349: 2192: 2054: 2023: 2017: 1968: 1959: 1899: 1882: 1869: 1709: 1580:(6.print. ed.). New York: Morrow. 1454: 1302: 1213: 1153: 1083:"Archaeopteryx and the origin of birds" 687:. Ostrom's reappraisal of dinosaurs as 2983: 2977:, volume 11, number 1, pages 15 to 23. 2902: 2896: 2883: 2865:. American Museum of Natural History. 2636: 2630: 2512: 2463: 2457: 2444: 2438: 2417: 2408: 2217: 2211: 2188: 2186: 2184: 2182: 2080:Williams, David B. (August 19, 2010). 1753: 1747: 1705: 1703: 1701: 1668: 1594: 1570: 1475: 1469: 1395: 1282: 1243: 1194: 1109:Ostrom, J. H.; Wellnhofer, P. (1986). 1080: 1039: 1003: 990: 949: 929: 894: 881: 861: 650:their still larger predators, such as 361:in 1955 before joining the faculty at 2921: 2915: 2877: 2678: 2672: 2244: 2143: 2137: 2127:Smithsonian Miscellaneous Collections 2124: 2118: 2106:Maugh, II, Thomas H. (21 July 2005). 2099: 2050: 2048: 2046: 1804: 1728: 1276: 1234: 644: 2566: 2506: 2421:Dinosaurs: a very short introduction 2325: 2319: 1710:Wilford, John Noble (21 July 2005). 1362: 1165:Stoddart, Charlotte (13 June 2023). 634:", a term coined in a 1975 issue of 306:on February 18, 1928 and grew up in 3006:Deaths from dementia in Connecticut 2179: 1835: 1698: 1356: 1244:Bakker, Robert T. (April 1, 1975). 1066:10.1146/annurev.ea.03.050175.000415 252:in the 1860s, but was dismissed by 13: 2884:Abdale, Jason R. (July 20, 2021). 2470:Canadian Journal of Earth Sciences 2057:"Dinosaur Expert John Ostrom Dies" 2043: 1975:Journal of Vertebrate Paleontology 1722: 1495:10.1111/j.1558-5646.1970.tb01775.x 1171:Knowable Magazine | Annual Reviews 1102:10.1111/j.1095-8312.1976.tb00244.x 774:to be found outside eastern Asia. 746:, previously known as the Haarlem 455: 340:American Museum of Natural History 14: 3052: 2024:Carlson, Barbara (23 July 2005). 1270:10.1038/scientificamerican0475-58 1216:"The man who saved the dinosaurs" 952:"Were some dinosaurs gregarious?" 630:is credited with triggering the " 448:in July 2005 at the age of 77 in 375:Peabody Museum of Natural History 2903:Abdale, Jason R. (1 July 2022). 2679:Ruben, John (16 February 2010). 2464:Currie, Philip J. (March 2023). 1283:Siegel, Robert (July 21, 2005). 554: 545: 233:(or "saurians"). He argued that 223:Beginning with the discovery of 148:Hayden Memorial Geological Award 3026:Union College (New York) alumni 2934: 2840:Manning, Adam (20 March 2020). 2547: 2532: 2293: 2055:Schudel, Matt (July 22, 2005). 1853: 1829: 1650: 1564: 950:Ostrom, John H. (1 June 1972). 683:by the Canadian paleontologist 515:Dinosaur Footprints Reservation 509:In the 1970s, Ostrom examined 402:. He also discovered and named 2637:Ostrom, John (March 9, 1973). 1995:10.1080/02724634.1990.10011815 1969:Forster, Catherine A. (1990). 1476:Galton, Peter M. (June 1970). 1004:Ostrom, John (March 9, 1973). 530: 392:. Late in 1964, he discovered 357:Ostrom taught for one year at 41:skeleton cast. Photo courtesy 1: 3016:Scientists from New York City 2922:Black, Riley (June 2, 2020). 1146: 1081:Ostrom, John H. (June 1976). 463: 326:from Union College in 1951. 2513:Badwan, Bara (3 June 2019). 2445:Badwan, Bara (3 June 2019). 2383:10.1371/journal.pone.0063115 1754:Dodson, Peter (April 2020). 1729:Gates, Alexander E. (2003). 1040:Ostrom, John H. (May 1975). 976:10.1016/0031-0182(72)90049-1 492:and drawing comparisons via 244:instead of their own class, 7: 2193:Desmond, Adrian J. (1975). 1955:(1). National Park Service. 1369:Archives of Natural History 1338:. In Moody, Richard (ed.). 1289:NPR / All Things Considered 901:American Journal of Science 422:American Journal of Science 333:as a graduate student with 10: 3057: 3021:Columbia University alumni 2956: 2278:10.3390/geosciences7010013 1731:A to Z of Earth Scientists 1662:BBC - Science & Nature 1658:"Dinosaurs in Your Garden" 1571:Bakker, Robert T. (1986). 1363:Ries, C. J. (April 2007). 1334:Wellnhofer, Peter (2010). 1314:Yale Bulletin and Calendar 1310:"In Memoriam: John Ostrom" 802:(meaning "tendon lizard"). 787:In 1970, John Ostrom gave 472:Skeleton of the hadrosaur 431:National Natural Landmarks 2785:Norberg, Ulla M. (1985). 2597:10.1186/s12862-017-1076-y 2326:Paul, Gregory S. (1988). 1883:Maxwell, Desmond (2000). 1813:Encyclopedia of Dinosaurs 1214:Conniff, Richard (2014). 1180:10.1146/knowable-060923-1 993:Proc K Ned Akad van Wet B 851:) was named in his honor. 812:Utahraptor ostrommaysorum 782:Scientific classification 553: 544: 539: 398:fossils near the town of 390:Yellowstone National Park 352: 195: 180: 170: 163: 143: 131: 107: 97: 75: 50: 28: 21: 3036:Brooklyn College faculty 3011:American paleontologists 2909:DINOSAURS AND BARBARIANS 2890:DINOSAURS AND BARBARIANS 2584:BMC Evolutionary Biology 2144:Evans, David C. (2006). 2026:"Bringing shale to life" 1889:Natural History Magazine 930:Ostrom, John H. (1969). 895:Ostrom, John H. (1964). 702:and the origin of flight 320:The Meaning of Evolution 298:Early life and education 256:in his influential book 2905:"Utahraptor: A History" 2791:The American Naturalist 2706:10.1073/pnas.0915099107 2639:"The Ancestry of Birds" 2237:10.15385/jch.2018.2.2.5 2218:Oldham, Jordan (2018). 1943:Orlowski, Jeff (2020). 1525:Cracraft, Joel (1977). 1381:10.3366/anh.2007.34.1.1 1006:"The Ancestry of Birds" 796:Also in 1970, he named 720:, it languished in the 595:and were in some cases 450:Litchfield, Connecticut 438:Manchester, Connecticut 414:Rocky Hill, Connecticut 371:vertebrate paleontology 16:American paleontologist 3031:Beloit College faculty 2483:10.1139/cjes-2022-0131 2418:Norman, David (2017). 1949:Park Paleontology News 1246:"Dinosaur Renaissance" 862:Ostrom, J. H. (1961). 799:Tenontosaurus tilletti 750: 519:Holyoke, Massachusetts 494:comparative morphology 488:apparatuses of modern 481: 388:, in Wyoming, east of 316:George Gaylord Simpson 280:of the primitive bird 1838:"OSTROM, DR. JOHN H." 1760:The Anatomical Record 1461:Heilmann, G. (1926). 1423:10.1093/sysbio/syz010 1320:(1). August 26, 2005. 1042:"The Origin of Birds" 922:10.2475/ajs.262.8.975 856:Selected publications 742: 471: 427:National Park Service 2928:Smithsonian Magazine 1220:Yale Alumni Magazine 871:Bulletin of the AMNH 658:Chicago Field Museum 632:dinosaur renaissance 218:dinosaur renaissance 137:Dinosaur renaissance 2697:2010PNAS..107.2733R 2374:2013PLoSO...863115P 2269:2017Geosc...7...13G 2061:The Washington Post 1987:1990JVPal..10..273F 1836:Courant, Hartford. 1531:The Wilson Bulletin 1465:. London: Witherby. 1463:The origin of birds 1262:1975SciAm.232d..58B 1250:Scientific American 1058:1975AREPS...3...55O 968:1972PPP....11..287O 913:1964AmJS..262..975O 693:dinosaur physiology 637:Scientific American 446:Alzheimer's disease 410:Dinosaur State Park 331:Columbia University 329:Ostrom enrolled at 302:Ostrom was born in 288:feathered dinosaurs 259:The Origin of Birds 250:Thomas Henry Huxley 155:Romer-Simpson Medal 121:Columbia University 2752:American Zoologist 1911:The New York Times 1716:The New York Times 1664:. 18 October 2002. 1625:10.7717/peerj.4191 1411:Systematic Biology 1222:. No. Jul/Aug 790:Microvenator celer 768:Ostromia crassipes 751: 744:Ostromia crassipes 645:Energy and climate 482: 419:Ostrom edited the 382:Cloverly Formation 202:John Harold Ostrom 2112:Los Angeles Times 1913:. 4 December 1964 1349:978-1-86239-311-0 825:Rahonavis ostromi 820:Catherine Forster 653:Tyrannosaurus rex 626:Ostrom's work on 566: 565: 199: 198: 181:Doctoral students 165:Scientific career 61:February 18, 1928 3048: 2950: 2949: 2948:. 18 March 1998. 2938: 2932: 2931: 2919: 2913: 2912: 2900: 2894: 2893: 2881: 2875: 2874: 2856: 2850: 2849: 2837: 2831: 2830: 2782: 2776: 2775: 2743: 2737: 2736: 2726: 2708: 2691:(7): 2733–2734. 2676: 2670: 2669: 2658:10.1038/242136a0 2643: 2634: 2628: 2627: 2617: 2599: 2575: 2564: 2563: 2551: 2545: 2544: 2543:: 347–376. 1969. 2536: 2530: 2529: 2527: 2525: 2510: 2504: 2503: 2485: 2461: 2455: 2454: 2442: 2436: 2435: 2415: 2406: 2405: 2395: 2385: 2353: 2347: 2346: 2334: 2323: 2317: 2316: 2314: 2312: 2297: 2291: 2290: 2280: 2248: 2242: 2241: 2239: 2215: 2209: 2208: 2190: 2177: 2176: 2150: 2141: 2135: 2134: 2122: 2116: 2115: 2103: 2097: 2096: 2094: 2092: 2077: 2071: 2070: 2068: 2067: 2052: 2041: 2040: 2038: 2036: 2030:Hartford Courant 2021: 2015: 2014: 1966: 1957: 1956: 1940: 1923: 1922: 1920: 1918: 1903: 1897: 1896: 1880: 1867: 1866: 1857: 1851: 1850: 1848: 1847: 1833: 1827: 1826: 1808: 1802: 1801: 1775: 1773:10.1002/ar.24375 1751: 1745: 1744: 1726: 1720: 1719: 1707: 1696: 1695: 1693: 1691: 1677: 1666: 1665: 1654: 1648: 1647: 1637: 1627: 1603: 1592: 1591: 1579: 1568: 1562: 1561: 1559: 1557: 1522: 1516: 1515: 1497: 1473: 1467: 1466: 1458: 1452: 1451: 1449: 1447: 1434: 1402: 1393: 1392: 1360: 1354: 1353: 1331: 1322: 1321: 1306: 1300: 1299: 1297: 1295: 1280: 1274: 1273: 1241: 1232: 1231: 1229: 1227: 1211: 1192: 1191: 1189: 1187: 1182: 1162: 1142: 1125: 1115: 1105: 1087: 1077: 1036: 1025:10.1038/242136a0 1010: 1000: 987: 946: 936: 926: 924: 891: 878: 868: 601:Robert T. Bakker 558: 557: 549: 537: 536: 400:Bridger, Montana 359:Brooklyn College 290:in northeastern 254:Gerhard Heilmann 214:Robert T. Bakker 185:Robert T. Bakker 159: 152: 82: 60: 58: 35:John Ostrom and 33: 19: 18: 3056: 3055: 3051: 3050: 3049: 3047: 3046: 3045: 2981: 2980: 2971:Wayback Machine 2959: 2954: 2953: 2946:Chicago Tribune 2940: 2939: 2935: 2920: 2916: 2901: 2897: 2882: 2878: 2857: 2853: 2838: 2834: 2783: 2779: 2744: 2740: 2677: 2673: 2641: 2635: 2631: 2576: 2567: 2552: 2548: 2538: 2537: 2533: 2523: 2521: 2511: 2507: 2462: 2458: 2443: 2439: 2432: 2416: 2409: 2354: 2350: 2343: 2332: 2324: 2320: 2310: 2308: 2305:Allosaurus Roar 2299: 2298: 2294: 2249: 2245: 2216: 2212: 2205: 2191: 2180: 2148: 2142: 2138: 2123: 2119: 2104: 2100: 2090: 2088: 2078: 2074: 2065: 2063: 2053: 2044: 2034: 2032: 2022: 2018: 1967: 1960: 1941: 1926: 1916: 1914: 1905: 1904: 1900: 1881: 1870: 1859: 1858: 1854: 1845: 1843: 1834: 1830: 1823: 1809: 1805: 1752: 1748: 1741: 1727: 1723: 1708: 1699: 1689: 1687: 1679: 1678: 1669: 1656: 1655: 1651: 1604: 1595: 1588: 1577: 1569: 1565: 1555: 1553: 1523: 1519: 1474: 1470: 1459: 1455: 1445: 1443: 1403: 1396: 1361: 1357: 1350: 1332: 1325: 1308: 1307: 1303: 1293: 1291: 1281: 1277: 1242: 1235: 1225: 1223: 1212: 1195: 1185: 1183: 1163: 1154: 1149: 1113: 1085: 1008: 934: 866: 858: 822:named a fossil 784: 772:Anchiornithidae 704: 647: 555: 540:External videos 535: 466: 458: 456:Key discoveries 367:Yale University 355: 300: 191: 187: 157: 153: 150: 119: 108:Alma mater 93: 84: 80: 71: 62: 56: 54: 46: 43:Yale University 24: 17: 12: 11: 5: 3054: 3044: 3043: 3038: 3033: 3028: 3023: 3018: 3013: 3008: 3003: 2998: 2993: 2979: 2978: 2958: 2955: 2952: 2951: 2933: 2914: 2895: 2886:"Microvenator" 2876: 2851: 2832: 2803:10.1086/284419 2797:(3): 303–327. 2777: 2758:(4): 676–686. 2738: 2671: 2629: 2565: 2556:Canad. Geog. 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New York. 1375:(1): 1–19. 830:Deinonychus 726:Netherlands 689:endothermic 666:metabolisms 628:Deinonychus 621:Deinonychus 612:Deinonychus 583:Deinonychus 576:Deinonychus 532:Deinonychus 524:Hadrosaurus 503:Anatosaurus 474:Anatosaurus 395:Deinonychus 335:Ned Colbert 308:Schenectady 235:Deinonychus 226:Deinonychus 98:Nationality 91:Connecticut 38:Deinonychus 23:John Ostrom 2985:Categories 2590:(1): 236. 2562:(1): 4–11. 2133:: 317–320. 2066:2019-08-02 1846:2019-08-02 1147:References 1124:: 111–158. 1118:Zitteliana 999:: 289–305. 677:Cretaceous 593:metabolism 464:Hadrosaurs 344:hadrosaurs 87:Litchfield 57:1928-02-18 2975:Discovery 2871:2246/3239 2811:0003-0147 2764:0003-1569 2715:0027-8424 2606:1471-2148 2500:257133273 2492:0008-4077 2287:2076-3263 2263:(1): 13. 2173:0094-8373 2003:0272-4634 1798:211013829 1782:1932-8486 1618:: e4191. 1543:0043-5643 1482:Evolution 1389:0260-9541 1256:(4): 58. 1074:0084-6597 984:0031-0182 839:In 2017, 818:In 1998, 805:In 1993, 718:crassipes 679:Canadian 511:trackways 486:olfactory 278:phylogeny 274:osteology 210:dinosaurs 2827:85306259 2733:20145106 2666:29873831 2624:29197327 2519:YaleNews 2402:23690987 2362:PLOS ONE 2224:Channels 1790:32009298 1644:29383285 1504:28565073 1441:30753719 1033:29873831 884:Postilla 842:Ostromia 763:Ostromia 662:Mesozoic 571:theropod 490:reptiles 318:'s book 304:New York 270:theropod 242:Reptilia 102:American 69:New York 2969:at the 2957:Sources 2819:2461357 2772:3884286 2724:2840315 2693:Bibcode 2615:5712154 2524:21 June 2393:3655181 2370:Bibcode 2311:21 June 2265:Bibcode 2091:20 June 2035:20 June 2011:4523326 1983:Bibcode 1917:20 June 1690:21 June 1635:5788062 1556:21 June 1551:4160962 1512:5512265 1446:21 June 1432:6701454 1294:20 June 1258:Bibcode 1226:20 June 1186:20 June 1141:: 1–14. 1054:Bibcode 964:Bibcode 909:Bibcode 890:: 1–29. 755:Haarlem 724:in the 708:Haarlem 513:at the 373:at the 324:geology 231:lizards 2825:  2817:  2809:  2770:  2762:  2731:  2721:  2713:  2664:  2646:Nature 2622:  2612:  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Index


Deinonychus
Yale University
New York City
New York
Litchfield
Connecticut
American
Union College
BS
Columbia University
PhD
Dinosaur renaissance
Hayden Memorial Geological Award
Romer-Simpson Medal
Paleontology
Robert T. Bakker
Thomas Holtz
paleontologist
dinosaurs
Robert T. Bakker
dinosaur renaissance
Deinonychus
lizards
Reptilia
Aves
Thomas Henry Huxley
Gerhard Heilmann
The Origin of Birds
coelurosaurian

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