Oliver P Hay

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Two new Pleistocene mastodons

Authors: Oliver P Hay

Published in Jour Washington Acad Sci, in 1926, in volume 16, pages 35-41

Created: 2014-01-30, modified: 2025-12-03

Characteristic mammals of the early Pleistocene

Authors: Oliver P Hay

Published in Jour Washington Acad Sci, in 1928, in volume 18, pages 421-430

Created: 2014-01-30, modified: 2025-12-03

Camels of the fossil genus Camelops

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1913, in volume 46, pages 267-277

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.46-2025.267

A new fossil stickleback fish from Nevada

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1907, in volume 32, pages 271-273

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.32-1528.271

A collection of Pleistocene vertebrates from southwestern Texas

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1926, in volume 68, pages 1-18

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.68-2625.1

Descriptions of some Pleistocene vertebrates found in the United States

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1920, in volume 58, pages 83-146

Created: 2011-06-30, modified: 2013-07-12

doi:10.5479/si.00963801.58-2328.83

Remarks on Dr. George G. Simpson's work on the Pleistocene paleontology of Florida

Authors: Oliver P Hay

Published in Jour Washington Acad Sci, in 1930, in volume 20, pages 331-340

Created: 2014-01-30, modified: 2025-12-03

A Fossil Specimen of the Alligator Snapper (Macrochelys Temminckii) from Texas

Authors: Oliver P Hay

Published in Proceedings of The American Philosophical Society, in 1911, in volume 50, issue 200, pages 452-455

Created: 2017-01-01, modified: 2023-02-16

Description of a new fossil sea cow from Florida, Metaxytherium floridanum

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1922, in volume 61, pages 1-4

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.61-2438.1

A contribution to the knowledge of the extinct sirenian Desmostylus hesperus Marsh

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1915, in volume 49, pages 381-397

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.49-2113.381

Contributions to the knowledge of the mammals of the Pleistocene of North America

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1915, in volume 48, pages 515-575

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.48-2086.515

Descriptions of some mammalian and fish remains from Florida of probably Pleistocene age

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1919, in volume 56, pages 103-112

Created: 2011-06-30, modified: 2012-11-17

doi:10.5479/si.00963801.56-2291.103

On the fossil Mammalia of the first interglacial stage of the Pleistocene of the United States

Authors: Oliver P Hay

Published in Jour Washington Acad Sci, in 1930, in volume 20, pages 501-509

Created: 2014-01-30, modified: 2025-12-03

Descriptions of five species of North American fossil turtles, four of which are new

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1908, in volume 35, pages 161-169

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.35-1640.161

The extinct bisons of North America, with description of one new species, Bison regius

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1913, in volume 46, pages 161-200

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.46-2021.161

Descriptions of two extinct mammals of the order Xenarthra from the Pleistocene of Texas

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1916, in volume 51, pages 107-123

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.51-2147.107

Description of a new species of mastodon, Gomphotherium elegans, from the Pleistocene of Kansas

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1917, in volume 53, pages 219-221

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.53-2198.219

Further consideration of the shell of Chelys and of the constitution of the armor of turtles in general

Authors: Oliver P Hay

Published in Proc. US. Natl. Mus, in 1928, in volume 73, pages 1-12

Created: 2011-06-01, modified: 2017-01-06

doi:10.5479/si.00963801.73-2724.1

On certain genera and species of carnivorous dinosaurs, with special reference to Ceratosaurus nasicornis Marsh

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1908, in volume 35, pages 351-366

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.35-1648.351

Descriptions of eight new species of fossil turtles from west of the one hundredth meridian

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1910, in volume 38, pages 307-326

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.38-1747.307

Description of two species of fossil turtles, Toxochelys stenopora and Christernon? interpositum, the latter hitherto unknown

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1909, in volume 36, pages 191-196

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.36-1665.191

Description of a new species of extinct horse, Equus lambei, from the Pleistocene of Yukon Territory

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1917, in volume 53, pages 435-443

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.53-2212.435

On the skull and the brain of Triceratops, with notes on the brain-cases of Iguanodon and Megalosaurus

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1909, in volume 36, issue 1660, pages 95-108

Created: 2011-06-30, modified: 2013-03-21

doi:10.5479/si.00963801.36-1660.95

On the nature of Edestus and related genera, with descriptions of one new genus and three new species

Authors: Oliver P Hay

Published in Proceedings of The United States National Museum, in 1909, in volume 37, issue 1699, pages 43-61

Created: 2011-06-30, modified: 2013-02-27

doi:10.5479/si.00963801.37-1699.43

PARAMECIUM INFUSION HISTORIES: I. HYDROGEN ION CHANGES IN HAY AND HAY-FLOUR INFUSIONS

Authors: Edgar P Jones

Published in Biol Bull, in 1930, in volume 59, pages 275-284

Created: 2010-01-06, modified: 2011-06-21

doi:10.2307/1536815

The Red-Headed Woodpecker a Hoarder

Authors: O P Hay

Published in The Auk, in 1887, in volume 4, pages 193-196

Created: 2013-03-08, modified: 2013-03-08

doi:10.2307/4066904

On an important specimen of Edestus; with description of a new species, Edestus mirus

Authors: Oliver Perry Hay

Published in Proceedings of The United States National Museum, in 1912, in volume 42, pages 31-38

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.42-1884.31

MESEMBRYANTHEMACEAE

Authors: P Chesselet | S Hammer | I Oliver

Published in Bothalia, in 2003, in volume 33, issue 2, pages 160-164

Created: 2026-04-03, modified: 2026-04-03

doi:10.4102/abc.v33i2.448

THE HYBRID ORIGIN OF ELEOCHARIS-MACOUNII

Authors: P M Catling | S G Hay

Published in Rhodora, in 1993, in volume 95, issue 882, pages 85-96

Created: 2014-06-16, modified: 2023-02-16

SHORTER NOTES

Authors: R C Benedict | Oliver P Medsger

Published in Torreya, in 1922, in volume 22, issue 3, pages 49-50

Created: 2022-12-14, modified: 2022-12-14

GENTIANACEAE

Authors: I M Oliver | J B P Beyers

Published in Bothalia, in 2001, in volume 31, issue 2, pages 207-209

Created: 2026-04-03, modified: 2026-04-03

doi:10.4102/abc.v31i2.526

A bear animalcule renamed

Authors: W P Hay

Published in Proceedings of The Biological Society of Washington, in 1906, in volume 19, pages 46-47

Created: 2011-07-31, modified: 2011-07-31

The Chronological Distribution of the Elasmobranchs

Authors: O P Hay

Published in Transactions of the American Philosophical Society, in 1901, in volume 20, issue 2, pages 63-75

Created: 2026-05-26, modified: 2026-05-26

doi:10.2307/1005426

Further observations on some extinct elephants

Authors: O P Hay

Published in Proceedings of The Biological Society of Washington, in 1922, in volume 35, pages 97-101

Created: 2011-07-31, modified: 2021-04-05

On the Existing Genera of the Trionychidæ

Authors: O P Hay

Published in Proceedings of The American Philosophical Society, in 1903, in volume 42, issue 174, pages 268-274

Created: 2017-01-01, modified: 2023-02-16

Description of two new species of crayfish

Authors: W P Hay

Published in Proceedings of The United States National Museum, in 1899, in volume 22, pages 121-123

Created: 2011-06-30, modified: 2017-01-06

doi:10.5479/si.00963801.22-1187.121

On the distribution oi Hyla evittata Miller

Authors: W P Hay

Published in Proceedings of The Biological Society of Washington, in 1902, in volume 15, pages 199

Created: 2012-03-19, modified: 2012-03-19

On the habits of Cambarus uhleri Faxon

Authors: W P Hay

Published in Proceedings of The Biological Society of Washington, in 1904, in volume 17, pages 167

Created: 2012-03-19, modified: 2012-03-19

Descriptions of Some Vertebrates of the Carboniferous Age

Authors: O P Hay

Published in Proceedings of The American Philosophical Society, in 1900, in volume 39, issue 161, pages 96-123

Created: 2017-01-01, modified: 2023-02-16

Again on Pleistocene Man at Vero, Florida

Authors: O P Hay

Published in Journal of The Washington Academy of Sciences, in 1928, in volume 18, pages 233-241

Created: 2014-01-30, modified: 2025-12-03

OBITUARY ELSIE ELIZABETH ESTERHUYSEN (1912-2006)

Authors: E G H Oliver | J P Rourke | H P Linder

Published in Bothalia, in 2007, in volume 37, issue 1, pages 119-127

Created: 2026-04-03, modified: 2026-04-03

doi:10.4102/abc.v37i1.309

Biographies of Phasmatologists - 6. Klaus Gunther

Authors: P E Bragg | Oliver Zompro

Published in Phasmid Studies, in 2007, in volume 16, issue 2, pages 25-33

Created: 2016-12-30, modified: 2016-12-30

Scirpus ancistrochaetus (Cyperaceae): First record in Canada

Authors: S G Hay | S G Hay | G C Tucker

Published in Rhodora, in 2002, in volume 104, issue 917, pages 83-85

Created: 2014-06-16, modified: 2023-02-16

On a collection of fishes from eastern Mississippi

Authors: O P Hay

Published in Proceedings of the United States National Museum, in 1881, in volume 3, pages 488-515

Created: 2010-01-14, modified: 2017-01-06

doi:10.5479/si.00963801.3-179.488

Description of a new species of subterraean isopod

Authors: W P Hay

Published in Proceedings of the United States National Museum, in 1921, in volume 21, issue 1176, pages 871-872

Created: 2010-05-10, modified: 2022-05-30

doi:10.5479/si.00963801.21-1176.871

Two new subterranean crustaceans from the United States

Authors: W P Hay

Published in Proceedings of The Biological Society of Washington, in 1901, in volume 14, pages 179-180

Created: 2011-07-31, modified: 2011-07-31

Holmes, Oliver W. Dec. 22, 1877

Authors: Oliver W Holmes

in 1877, pages 1-2

Created: 2017-06-24, modified: 2017-06-24

Holmes, Oliver W. July 2, 1878

Authors: Oliver W Holmes

in 1878, pages 1-2

Created: 2017-06-24, modified: 2017-06-24

Holmes, Oliver W. July 8, 1878

Authors: Oliver W Holmes

in 1878, pages 1-2

Created: 2017-06-24, modified: 2017-06-24

Holmes, Oliver W. July 10, 1878

Authors: Oliver W Holmes

in 1878, pages 1-2

Created: 2017-06-24, modified: 2017-06-24