Which bassist is credited on Metallica’s 1991 studio album?

Jason Newsted is credited as the bassist on Metallica’s 1991 studio album. He had joined the band after the death of Cliff Burton and played on the record’s bass parts.

Newsted became Metallica’s bassist in 1986, following Burton’s death during the touring cycle for Master of Puppets. Before recording Metallica, Newsted had appeared with the band on The $5.98 E.P.—Garage Days Re-Revisited and ...And Justice for All.

The Black Album sessions used a more collaborative recording approach than the previous album. Newsted’s playing is credited on the finished record, although the album’s production and mixing process has generated later discussion about how the bass was presented. Robert Trujillo did not join Metallica until 2003, while Cliff Burton had died years before this album was recorded.