Published in Journal of The Arnold Arboretum, in 1959, in volume 40, issue 3, pages 260-267

Created: 2016-07-07, modified: 2016-07-07

Published in Paleontological Research, in 2000, in volume 4, pages 183-189

Created: 2013-02-27, modified: 2013-02-27

Published in Paleontological Research, in 2002, in volume 6, pages 363-384

Created: 2013-02-27, modified: 2013-02-27

Published in Zoological Science, in 1990, in volume 7, pages 297-302

Created: 2012-09-19, modified: 2012-09-19

Published in Proceedings of the California Academy of Sciences, in 2005, in volume 56, issue 4, pages 42-52

Created: 2013-01-26, modified: 2013-01-26

Published in Proceedings of the California Academy of Sciences, in 2004, in volume 55, pages 251-254

Created: 2012-12-18, modified: 2012-12-18

Published in Annals of Carnegie Museum, in 2003, in volume 72, issue 3, pages 203-213

Created: 2017-01-23, modified: 2017-01-23

Published in Proceedings of the California Academy of Sciences, in 2003, in volume 54, issue 2, pages 17-26

Created: 2013-03-06, modified: 2013-03-06

Published in Proceedings of The California Academy of Sciences, in 2003, in volume 54, issue 1, pages 1-16

Created: 2014-11-06, modified: 2014-11-07

Published in Proceedings of The California Academy of Sciences, in 2004, in volume 55, issue 12, pages 222-247

Created: 2012-10-31, modified: 2013-07-27

Published in Proceedings of the California Academy of Sciences, in 2003, in volume 54, issue 7, pages 141-153

Created: 2013-03-06, modified: 2013-03-06