Published in Palaeontology, in 1975, in volume 18, issue 2, pages 367-375

Created: 2016-04-23, modified: 2016-04-23

Published in The Wilson Bulletin, in 1910, in volume 22, issue 1, pages 60-61

Created: 2016-11-27, modified: 2016-11-27

Published in Torreya, in 1904, in volume 4, issue 8, pages 117-119

Created: 2022-12-15, modified: 2022-12-15

Published in The Auk, in 1907, in volume 24, pages 430-492

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

Published in The Auk, in 1911, in volume 28, pages 125-126

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

Published in The Auk, in 1907, in volume 24, pages 281-286

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

Published in The Auk, in 1910, in volume 27, pages 185-204

Created: 2013-03-07, modified: 2013-03-08

Published in Annals And Magazine of Natural History, in 1883, in volume 11, pages 388

Created: 2011-09-29, modified: 2011-09-29

Published in The Auk, in 1907, in volume 24, pages 121-129

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

Published in The Wilson Bulletin, in 1908, in volume 20, issue 1, pages 27-40

Created: 2016-11-27, modified: 2016-11-27

Published in Proceedings of The United States National Museum, in 1954, in volume 103, pages 395-438

Created: 2011-08-19, modified: 2011-08-19

Published in Revue suisse de Zoologie, in 2020, in volume 122, issue 2, pages 213-246

Created: 2020-07-15, modified: 2020-07-15

Published in The Great Basin Naturalist, in 1999, in volume 59, issue 3, pages 259-265

Created: 2017-11-16, modified: 2017-11-16

Published in Sida, Contributions To Botany, in 1997, in volume 17, issue 4, pages 681-690

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

Published in Sida, Contributions To Botany, in 1997, in volume 17, issue 4, pages 691-695

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