Pantera's music, starting with 1990's Cowboys from Hell, is generally considered groove metal. The band's early albums in the 1980s were glam metal with new wave of British heavy metal influences, while the first album with Phil Anselmo, 1988's Power Metal, toned down the glam influences and was primarily a traditional heavy metal album. Pantera also has been described as thrash metal. Nonetheless, groove metal, pioneered by Pantera, was an offshoot inspired by thrash metal. The band also has been influential to the development of nu metal, metalcore, and several other movements. They have been called one of the pioneers of the new wave of American heavy metal. PopMatters has claimed that, "[Dimebag Darrell]'s influence on the entire genre of heavy metal is massive; after Cowboys from Hell and Vulgar Display of Power, every notable young American metal band since has, in some way or another, copied their guitar style from those records: Korn, Limp Bizkit, Slipknot, Hatebreed, Lamb of God, Shadows Fall... the list is endless."
