Published in Paleontological Research, in 1999, in volume 3, pages 294-302

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

Published in Paleontological Research, in 1998, in volume 2, pages 108-119

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

Published in Paleontological Research, in 1997, in volume 1, pages 180-187

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

Published in Biol Bull, in 1973, in volume 144, pages 151-161

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