There is possibly more than one artist with this name.
1.) Altamira is a melodic crust band from Chicago.
2.) Altamira is a Czech alternative/new age band.
3.) Altamira is an instrumental progressive-punk-jazz trio from Philadelphia.
4.) َAltamira is an Atmospheric Gothic/Doom Metal band from Hungary.
Altamira from Philadelphia changed its name to MANY ARMS June 2009
new site: www.last.fm/music/Many+Arms