A system, device and method are disclosed for minimally invasive lateral intervertebral fixation. An intervertebral fixation device includes a weight-bearing shell configured to fit into a disk space between plural vertebrae, the weight-bearing shell including a keyway opening between and through plural sidewalls. A first plurality of anchors is rotatably disposed in a first orientation in relation to the weight-bearing shell. A second plurality of anchors is rotatably disposed in a second orientation in relation to the weight-bearing shell. A key is adapted to rotate the first plurality of anchors in divergent directions from the second plurality of anchors and to secure a first vertebra and a second vertebra, respectively. The key is further adapted to support the first plurality of anchors and the second plurality of anchors in divergent directions in relation to the weight-bearing shell, the first plurality of anchors and the second plurality of anchors secured to the first vertebra and the second vertebra.