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Ashfall Fossil Beds

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The bones of the animals show features that indicate that the animals died of lung failure induced by inhaling volcanic ash. The smaller animals with smaller lung capacity were the first to die, and the larger animals were the last. Bite-marks on some bones show that local predators (the carnivorous
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was walking with his wife Jane through a series of gullies on Melvin Colson's farm in northeastern Nebraska and made this discovery. The Nebraska Game and Parks Foundation purchased the Ashfall site in 1986. Ashfall Fossil Beds State Historical Park opened in 1991. The site was declared a
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The rapidly accumulating ash, windblown into deep drifts at low places like the waterhole site, remained moderately soft. The ash preserved the animals in three dimensions; not even the delicate bones of birds or the carapaces of turtles were crushed. Above the layer of ash, a
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carry out excavations of new discoveries exactly where the fossilized remains lie preserved. Specially constructed walkways afford visitors an unobstructed close-up view of paleontologists at work during the summer field season.
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are so numerous and concentrated that the main section of Ashfall is called the "Rhino Barn". Other fossils at the "Rhino Barn" include the remains of horses and camels. Taxa discovered in the Ashfall deposits include:
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The first hint of the site's richness was the skull of a juvenile rhinoceros noticed in 1971 eroding out of a gully at the edge of a cornfield. In 1971, University of Nebraska State Museum paleontologist
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that, due to extraordinary local conditions, capture an ecological "snapshot" in time of a range of well-preserved fossilized organisms. Ash from a
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The Ashfall deposit preserves the fossilized remains of ancient animals that perished in a dense volcanic ash fall which occurred during the late
1812: 1365: 112: 1138: 1792: 1726: 1817: 1802: 315:, approximately 12 million years ago; the animals had come to a waterhole seeking relief. The fall of ash drifted downwind from the 558: 1807: 1441: 1007: 1837: 648: 1239: 1085: 1035: 1501: 1262: 1143: 1133: 1123: 906:"A Late Miocene Accipitrid (Aves: Accipitriformes) from Nebraska and Its Implications for the Divergence of Old World Vultures" 1148: 1072: 341:, and birds have been excavated. Many animals were preserved with their bones articulated; one rhino still bears her unborn 1571: 1270: 1118: 1023: 1000: 1611: 1541: 1511: 1385: 1370: 1229: 1052: 987:
Cenozoic Geology of Idaho: "The Bruneau-Jarbidge Eruptive Center, Southwestern Idaho" by Bill Bonnichsen (pages 251-268)
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The park's Hubbard Rhino Barn opened in 2009. The 17,500-square-foot (1,630 m) pavilion lets visitors observe as
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of grassland interspersed with trees that luxuriated in a warmer, milder climate than today's.
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and evidence of scavenging from a bone-crushing canid, possibly
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The Ashfall Fossil Beds are especially famous for fossils of
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eruption 10-12 million years ago created these fossilized
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has acted as "caprock" to preserve the strata beneath.
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Often called Clarendonian in North American contexts.
904:Zihui Zhang; Alan Feduccia; Helen F. James (2012). 763:. Museum Notes. University of Nebraska State Museum 1779: 1022: 1828:Miocene paleontological sites of North America 1008: 1798:Protected areas of Antelope County, Nebraska 688:https://en.wikipedia.org/Yellowstone_Caldera 701:"Ashfall Fossil Beds State Historical Park" 635:"Ashfall Fossil Beds State Historical Park" 66: 1015: 1001: 754: 752: 975:Ashfall Fossil Beds State Historical Park 969:Ashfall Fossil Beds State Historical Park 941: 931: 897: 668:. NGPC Map and Data Portal. March 1, 2017 300: 263:Ashfall Fossil Beds State Historical Park 18:Ashfall Fossil Beds State Historical Park 758: 649:United States Department of the Interior 387: 373: 1853:Volcanic eruptions in the United States 877: 875: 823: 749: 660: 658: 14: 1813:National Natural Landmarks in Nebraska 1780: 629: 627: 996: 885:. University of Nebraska State Museum 785:. University of Nebraska State Museum 1793:Museums in Antelope County, Nebraska 872: 655: 1818:Natural history museums in Nebraska 1803:Protected areas established in 1986 983:University of Nebraska State Museum 977:University of Nebraska State Museum 693: 640:Geographic Names Information System 624: 392:Paleontologists working on the site 24: 1766:Nebraska Game and Parks Commission 971:Nebraska Game and Parks Commission 797: 775: 258:. The ash depth was up to 1 foot. 25: 1864: 1808:Fossil parks in the United States 989:Idaho Bureau of Mines and Geology 962: 851: 333:), small three-toed and one-toed 329:(extinct hippo-like relatives of 48:Hills surrounding the fossil beds 981:Ashfall Fossil Beds Skeleton Map 860:. University of Nebraska–Lincoln 759:Voorhies, Mike (February 1992). 65: 58: 42: 1838:1991 establishments in Nebraska 845: 690:see that article for references 666:"Ashfall State Historical Park" 645:United States Geological Survey 396: 1222:USFS National Recreation Areas 854:"From Waterhole to Rhino Barn" 724: 715: 680: 552:(a hawk resembling the living 285:. The Ashfall Fossil Beds are 206:U.S. National Natural Landmark 182:University of Nebraska–Lincoln 164:Nebraska state historical park 13: 1: 617: 317:Bruneau-Jarbidge supervolcano 933:10.1371/journal.pone.0048842 7: 595: 10: 1869: 809:National Natural Landmarks 422: 367:of more erosion-resistant 304: 155:1,722 ft (525 m) 1760: 1740: 1404: 1348: 1297: 1288: 1261: 1238: 1220: 1190: 1167: 1111:National Wildlife Refuges 1109: 1071: 1043: 1034: 783:"About Ashfall: Overview" 732:"Ashfall | Perissodactyl" 409:National Natural Landmark 319:eruption (in present-day 261:The site is protected as 246:sites of the type called 224: 220: 212: 203: 199: 187: 177: 169: 159: 151: 143: 106: 96: 87:Antelope County, Nebraska 82: 53: 41: 34: 1823:Paleontology in Nebraska 1073:National Historic Trails 562:(a scavenger related to 307:Bruneau-Jarbidge caldera 1788:State parks of Nebraska 1741:State Recreation Trails 1210:Toadstool Geologic Park 811:. National Park Service 147:360 acres (150 ha) 1405:State Recreation Areas 1349:State Historical Parks 1263:Wild and Scenic Rivers 1205:Hudson-Meng Bison Kill 686:copied from Knowledge 569:three turtle species: 520:one rhinoceros genus: 393: 385: 301:Bruneau-Jarbidge event 1139:John and Louise Seier 805:"Ashfall Fossil Beds" 391: 377: 194:State Historical Park 128:42.42500°N 98.15861°W 37:State Historical Park 27:Park in Nebraska, USA 1848:2006 in paleontology 1843:1991 in paleontology 1677:Sutherland Reservoir 1627:Red Willow Reservoir 607:List of fossil sites 585:(a musk turtle) and 540:three bird species: 192:Ashfall Fossil Beds 74:Location in Nebraska 35:Ashfall Fossil Beds 1442:Box Butte Reservoir 1361:Ashfall Fossil Beds 1240:National Wilderness 1192:National Grasslands 924:2012PLoSO...748842Z 612:Pipe Creek Sinkhole 546:(a crowned crane), 349:bone-crunching dog 252:Yellowstone hotspot 232:Ashfall Fossil Beds 133:42.42500; -98.15861 124: /  1642:Rock Creek Station 1396:Rock Creek Station 1376:Buffalo Bill Ranch 1182:Samuel R. McKelvie 1045:National Monuments 591:(a painted turtle) 564:Old World vultures 528:one saber-toothed 394: 386: 1775: 1774: 1756: 1755: 1682:Swanson Reservoir 1662:Sherman Reservoir 1582:Merritt Reservoir 1310:Eugene T. Mahoney 1284: 1283: 1053:Agate Fossil Beds 883:"Ashfall Animals" 736:research.amnh.org 287:stratigraphically 228: 227: 97:Nearest town 16:(Redirected from 1860: 1702:Victoria Springs 1632:Riverview Marina 1602:Oliver Reservoir 1517:Gallagher Canyon 1502:Enders Reservoir 1295: 1294: 1169:National Forests 1041: 1040: 1017: 1010: 1003: 994: 993: 956: 955: 945: 935: 901: 895: 894: 892: 890: 879: 870: 869: 867: 865: 849: 843: 842: 840: 838: 827: 821: 820: 818: 816: 801: 795: 794: 792: 790: 779: 773: 772: 770: 768: 756: 747: 746: 744: 742: 728: 722: 719: 713: 712: 710: 708: 697: 691: 684: 678: 677: 675: 673: 662: 653: 652: 631: 602:Gray Fossil Site 549:Apatosagittarius 543:Balearica exigua 535:Longirostromeryx 411:on May 9, 2006. 404:Michael Voorhies 384:in volcanic ash. 278:from the middle 238:in northeastern 139: 138: 136: 135: 134: 129: 125: 122: 121: 120: 117: 69: 68: 62: 46: 32: 31: 21: 1868: 1867: 1863: 1862: 1861: 1859: 1858: 1857: 1778: 1777: 1776: 1771: 1752: 1736: 1637:Rock Creek 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Index

Ashfall Fossil Beds State Historical Park

Map showing the location of Ashfall Fossil Beds State Historical Park
Antelope County, Nebraska
United States
Royal, Nebraska
42°25′30″N 98°09′31″W / 42.42500°N 98.15861°W / 42.42500; -98.15861
Nebraska state historical park
University of Nebraska–Lincoln
Ashfall Fossil Beds
State Historical Park

U.S. National Natural Landmark
Antelope County
Nebraska
fossil
lagerstätten
Yellowstone hotspot
bone beds
Teleoceras
mammals
Miocene
geologic epoch
stratigraphically
Serravallian
Ogallala Group
Bruneau-Jarbidge caldera
Miocene
Bruneau-Jarbidge supervolcano
Idaho
Teleoceras
rhinos

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