Published in Palaeontology, in 1991, in volume 34, issue 2, pages 329-355

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Published in Palaeontology, in 1990, in volume 33, issue 2, pages 487-493

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Published in Palaeontology, in 1982, in volume 25, issue 3, pages 623-633

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Published in Rodriguésia, in 1966, in volume 25, issue 37, pages 5-11

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Published in Rodriguésia, in 1974, in volume 27, issue 39, pages 163-168

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Published in Palaeontology, in 1980, in volume 23, issue 3, pages 605-616

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Published in Palaeontology, in 1972, in volume 15, issue 4, pages 569-578

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Published in Bulletin of the British Museum (Natural History). Geology., in 1985, in volume 38, issue 4, pages 287-308

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Published in Palaeontology, in 1993, in volume 36, issue 3, pages 681-720

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Published in Palaeontology, in 1985, in volume 28, issue 2, pages 401-412

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Published in Memorias Do Instituto Butantan, in 1965, in volume 32, pages 1-8

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Published in Memorias Do Instituto Butantan, in 1983, in volume 44-45, pages 81-118

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Published in Arquivos Do Museu Nacional, in 2007, in volume 65, issue 1, pages 113-133

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Published in Mémoires du Muséum national d'histoire naturelle, in 1995, in volume 166, pages 301-310

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Published in Anales De La Sociedad Cientifica Argentina, in 1987, in volume 217, pages 39-46

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Published in Memorias Do Instituto Butantan, in 1981, in volume 42-43, pages 373-497

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Published in Memorias Do Instituto Butantan, in 1978, in volume 40-41, pages 55-62

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Published in Journal of Raptor Research, in 2001, in volume 35, issue 1, pages 61-64

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Published in Memorias Do Instituto Butantan, in 1978, in volume 40-41, pages 75-78

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Published in Malacologia, in 2013, in volume 56, issue 1, pages 301-307

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Published in Michael Schuck Bebb letters to Asa Gray, 1859-1921, pages 1-0

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Published in Michael Schuck Bebb letters to Asa Gray, 1859-1952, in 1884, pages 1-7

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Published in Michael Schuck Bebb letters to Asa Gray, 1859-1927, in 1878, pages 1-0

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Published in Michael Schuck Bebb letters to Asa Gray, 1859-1901, in 1867, pages 1-0

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Published in Michael Schuck Bebb letters to Asa Gray, 1859-1899, in 1860, pages 1-0

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Published in Michael Schuck Bebb letters to Asa Gray, 1859-1897, in 1860, pages 1-0

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Published in Michael Schuck Bebb letters to Asa Gray, 1859-1895, in 1859, pages 1-0

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Published in Michael Schuck Bebb letters to Asa Gray, 1859-1923, in 1874, pages 1-0

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Published in Michael Schuck Bebb letters to Asa Gray, 1859-1917, in 1873, pages 1-2

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Published in Michael Schuck Bebb letters to Asa Gray, 1859-1913, in 1873, pages 1-2

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1971, in 1885, pages 1-2

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1907, in 1871, pages 1-0

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1905, in 1871, pages 1-0

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1925, in 1875, pages 1-0

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1903, in 1870, pages 1-0

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1910, in 1873, pages 1

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1990, in 1887, pages 1-2

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1975, in 1886, pages 1-2

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1979, in 1886, pages 1-2

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1983, in 1886, pages 1-3

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1973, in 1886, pages 1-2

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-2125, pages 1-2

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-2021, pages 1-5

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-2080, in 1890, pages 1-2

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-1909, in 1871, pages 1

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-2123, in 1895, pages 1-2

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-2017, pages 1-4

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-2060, pages 1-9

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

Published in Michael Schuck Bebb letters to Asa Gray, 1859-2054, pages 1-6

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