1           2009-01-09.18  
2           2009-01-10.26  
3           2009-01-11.21  
4           1979-10-10.31  Harris & Young (1983) 
5           1979-10-16.27  Harris & Young (1983) 
6           1979-10-28.30  Harris & Young (1983) 
7           1979-11-12.23  Harris & Young (1983) 
8           1979-12-09.19  Harris & Young (1983) 
9  1998-08-01--2011-07-30  Lowell