When Dinosaur came to Richmond in September 1988, touring behind the group’s second and best album, “You’re Living All Over Me,” it was just another rock band. The trio pulled up to the Metro in a beat-up old station wagon belonging to guitarist J. Mascis’s father, and then unleashed an ear-piercing case that classic rock was cool again. It was an undeniable argument and one that would propel the group to international fame. After years of open and public acrimony, the original incarnation of the group consisting of Mascis, bassist Lou Barlow and drummer Murph returns to Richmond for another loud, blistering show Wednesday, July 22, at the National. Opening will be People’s Blues of Richmond, a band that Dinosaur Jr.’s once revolutionary merger of Black Flag, the Cure and Peter Frampton helped to spawn. Doors open at 7 p.m. Admission is $20-$23. thenationalva.com.