It differentiates simple and complex craters, and multi-ring basins.

Asha Patera is a patera, or a complex crater with scalloped edges, on Jupiter's moon Io.

TRI - these complex craters are large enough so that their inner walls have slumped to the floor.

Craters within the Kuiper quadrangle increase in complexity as they increase in size from simple bowl-shaped craters to complex craters with central peaks to multiringed basins.

It is classified as a complex crater because it features a central uplift, a transition zone, and a ring graben (a ring-shaped trough in the outer part of the crater).

Yuty is a complex crater as opposed to a simple (bowl-shaped) crater.

Araguainha is a complex crater with annular and radial faults, exposed to the surface and eroded, crossed by the Araguaia River.

Above a certain threshold size, which varies with planetary gravity, the collapse and modification of the transient cavity is much more extensive, and the resulting structure is called a complex crater.

They tend to be revealed in the uplifted center of a complex crater, however.

Heraclitus is a complex lunar crater that lies in the rugged southern highlands of the Moon.