Sexcrement, Scrotum (NL),
Bluuurgh...,
Necrophagia, Entombed's
Wolverine Blues,
Afflicted, Furbowl's debut, Pungent Fucking Stench...
Though I must add that there's no band groovier than Sexcrement. Or maybe in yet another style,
Devourment,
Cinerary,
Animals Killing People, etc. But the vocals may turn you off.