- Algeria
- Omodeo et al., 2003
- Bulgaria
- Zicsi and Csuzdi, 1986b; Valchovski, 2012
- Canada
- Yukon Territory: Blakemore, 2008g
- Costa Rica
- Brown and Fragoso, 2007
- Guatemala
- Brown and Fragoso, 2007
- Iceland
- Blakemore, 2007b
- Israel
- Szederjesi et al., 2013
- Japan
- Blakemore, 2003, 2003b
- Jordan
- Szederjesi et al., 2013
- Madeira
- Talavera, 1996
- Poland
- Kasprzak, 1989
- Russia
- Perel, 1979; Perel-Vsevolodova, 1997; Blakemore, 2007c
- Spain
- Diaz Cosin et al., 1992
- Taiwan
- Blakemore et al., 2006
- United States
- Reynolds, 1995; Wyoming: James, 2000
|
Data are not exhaustive. The database is permanently a work in progress.