Authors: George Gaylord Simpson

Published in Jour Washington Acad Sci, in 1940, in volume 30, pages 137-163

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

Authors: George Gaylord Simpson

Published in Jour Washington Acad Sci, in 1941, in volume 31, pages 1-20

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

Authors: George Gaylord Simpson

Published in Postilla, in 1968, in volume 115, pages 1-3

Created: 2013-03-01, modified: 2013-03-01

Authors: George Gaylord Simpson

Published in Mem. natn. Mus. Vict., in 1970, in volume 31, pages 17-23

Created: 2012-05-17, modified: 2012-05-17

Authors: George Gaylord Simpson

Published in Proceedings of The Royal Society of Victoria, in 1959, in volume 71, issue 2, pages 113-119

Created: 2020-07-02, modified: 2020-07-02

Authors: George Gaylord Simpson

Published in Annals of The Carnegie Museum, in 1929, in volume 19, pages 115-122

Created: 2017-01-09, modified: 2025-12-17

Authors: George Gaylord Simpson

Published in Proceedings of The Royal Society of Victoria, in 1965, in volume 79, issue 1, pages 91-93

Created: 2020-07-02, modified: 2020-07-02

Authors: George Gaylord Simpson

Published in Proceedings of The Royal Society of Victoria, in 1969, in volume 82, issue 2, pages 149-160

Created: 2020-07-02, modified: 2020-07-02

Authors: George Gaylord Simpson

Published in Proceedings of The United States National Museum, in 1935, in volume 83, pages 221-244

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

Authors: George Gaylord Simpson

Published in Records of The South Australian Museum, in 1957, in volume 13, pages 51-70

Created: 2013-01-14, modified: 2013-01-14

Authors: G G Simpson

Published in Bulletin of The Museum of Comparative Zoology, in 1962, in volume 127, pages 237-293

Created: 2009-12-23, modified: 2021-04-05

Authors: John Gaylord Coulter | Bradley Moore Davis

Published in Botanical Gazette, in 1898, in volume 26, issue 5, pages 362-364

Created: 2017-03-14, modified: 2017-03-14

Authors: Harry B Weiss

Published in Journal of The New York Entomological Society, in 1954, in volume 62, issue 3, pages 153-159

Created: 2016-06-13, modified: 2023-02-16

Authors:

Published in Nautilus Philadelphia, in 1928, in volume 42, pages 66

Created: 2014-12-03, modified: 2014-12-03

Authors: Robert C Simpson | R Ann Simpson

Published in Banisteria, in 2005, in volume 26, pages 17

Created: 2020-06-14, modified: 2020-06-14

Authors: C T Simpson

Published in Nautilis, in 1889, in volume 3, pages 5-8

Created: 2013-09-28, modified: 2013-09-28

Authors: C T Simpson

Published in Nautilis, in 1894, in volume 8, pages 91-92

Created: 2013-09-28, modified: 2013-09-28

Authors: C T Simpson

Published in Nautilis, in 1889, in volume 3, pages 78-80

Created: 2013-09-28, modified: 2013-09-28

Authors: C T Simpson

Published in Nautilis, in 1922, in volume 35, pages 65-73

Created: 2013-09-28, modified: 2013-09-28

Authors: C T Simpson

Published in Nautilis, in 1921, in volume 35, pages 20-22

Created: 2013-09-28, modified: 2013-09-28

Authors: C T Simpson

Published in Nautilis, in 1893, in volume 7, pages 22-23

Created: 2013-09-28, modified: 2013-09-28

Authors: C T Simpson

Published in Nautilis, in 1896, in volume 10, pages 29-30

Created: 2013-09-28, modified: 2013-09-28

Authors: C T Simpson

Published in Nautilis, in 1890, in volume 4, pages 79-81

Created: 2013-09-28, modified: 2013-09-28

Authors: D R Simpson

Published in Phytologia, in 1976, in volume 33, pages 4-8

Created: 2011-01-26, modified: 2023-02-16

Authors: D R Simpson

Published in Phytologia, in 1982, in volume 51, pages 303-322

Created: 2011-01-26, modified: 2023-02-16

Authors: C P Alexander

Published in Entomological News, in 1959, in volume 70, pages 29-32

Created: 2010-01-13, modified: 2021-04-05

Authors: D R Simpson

Published in Phytologia, in 1975, in volume 30, pages 304-316

Created: 2011-01-26, modified: 2011-06-21

Authors: W H Simpson

Published in Ibis, in 1861, in volume 3, issue 4, pages 361-374

Created: 2024-10-04, modified: 2024-10-04

Authors: Michael G Simpson | Jillian Stephens | Stella Yang

Published in Madroño, in 2020, in volume 67, issue 1, pages 5-8

Created: 2025-01-13, modified: 2025-01-13

Authors: C T Simpson

Published in Nautilis, in 1894, in volume 7, pages 110-113

Created: 2013-09-28, modified: 2013-09-28

Authors: C T Simpson

Published in Nautilis, in 1901, in volume 15, pages 77-82

Created: 2013-09-28, modified: 2013-09-28

Authors: C T Simpson

Published in Nautilis, in 1905, in volume 18, pages 137-138

Created: 2013-09-28, modified: 2013-09-28

Authors: D R Simpson

Published in Phytologia, in 1974, in volume 29, pages 277-280

Created: 2011-01-26, modified: 2023-02-16

Authors: W H Simpson

Published in Ibis, in 1860, in volume 2, issue 3, pages 279-296

Created: 2024-10-04, modified: 2024-10-04

Authors: J J Henderson | T T Simpson

Published in Nautilus, in 1902, in volume 16, pages 88-89

Created: 2011-06-14, modified: 2011-06-21

Authors: C T Simpson

Published in Nautilis, in 1897, in volume 11, pages 18-23

Created: 2013-09-28, modified: 2013-09-28

Authors: David A Simpson

Published in Rodriguésia, in 2006, in volume 57, issue 2, pages 171-188

Created: 2016-07-26, modified: 2023-02-16

Authors: Gaylord C Hall

Published in Journal of The New York Entomological Society, in 1924, in volume 32, issue 2, pages 109-111

Created: 2016-06-13, modified: 2023-02-16

Authors: George B Simpson

Published in Transactions of the American Philosophical Society, in 1890, in volume 16, issue 3, pages 435-460

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

Authors: G G Simpson

Published in Breviora, in 1970, in volume 360, pages 1-13

Created: 2009-12-27, modified: 2021-04-05

Authors: Jakob Schmitt

Published in Zeitschrift für Säugetierkunde, in 1970, in volume 36, pages 380-383

Created: 2016-08-03, modified: 2016-08-03

Authors: Michael G Simpson | Regina A Dowdy | Lee M Simpson | Jon P Rebman | Ronald B Kelley

Published in Madroño, in 2014, in volume 61, pages 259-275

Created: 2017-05-28, modified: 2017-05-28

Authors: G C Simpson

Published in Annals of Tropical Medicine & Parasitology, in 1912, in volume 6, issue 2, pages 231-233

Created: 2022-12-22, modified: 2022-12-22

Authors: D R Simpson

Published in Fieldiana: Botany, New Series, in 1972, in volume 36, pages 1-11

Created: 2022-12-23, modified: 2022-12-23

Authors: Margaret Simpson

Published in Biol Bull, in 1962, in volume 123, pages 396-411

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

Authors: Margaret Simpson

Published in Biol Bull, in 1962, in volume 123, pages 412-423

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

Authors: W H Simpson

Published in Ibis, in 1860, in volume 2, issue 4, pages 375-378

Created: 2024-10-04, modified: 2024-10-04

Authors: B Simpson

Published in Proceedings of The Zoological Society of London, in 1869, in volume 1869, pages 507

Created: 2012-10-01, modified: 2012-10-01

Authors: C David Simpson

Published in Bull Brit Ornithol Club, in 1961, in volume 81, pages 82-85

Created: 2012-12-03, modified: 2012-12-03

Authors: Benny J Simpson

Published in Sida, Contributions To Botany, in 1991, in volume 14, issue 3, pages 512-513

Created: 2015-12-02, modified: 2015-12-02