101 Studios, Paramount, Elevate Entertainment are also listed as defendants.

Reps for Sheridan, 101 Studios, Paramount and Elevate Entertainment did not respond for comment.

In the court documents, Salkin alleges that she pitched her own sprawling Western drama, “Sovereign Nation,” to Sheridan’s company, Elevate Entertainment, in 2016, only to be told: “Taylor thanks you very much for your interest. Unfortunately, he’s unavailable for TV projects.”

The suit then claims that “Yellowstone” was greenlit at Paramount “within months” of her rejection.

The lawsuit lists several “specific expressive choices” that “Yellowstone” allegedly lifted from Salkin’s “Sovereign Nation.” Those elements, the suit states, include “a tribal casino functioning as the institutional center of political and development power; a signature confrontation staged in the tribal chairman’s casino office over expansion beyond reservation boundaries; the use of trust land, the absence of zoning restrictions, and 99-year lease structure as the concrete mechanism for that expansion; recurring master-plan imagery deployed to dramatize the struggle for territorial control.”

The suit states, “When the works are objectively compared, the same coordinated design repeatedly appears: casino-centered institutions organize political power; the same unusual land-development mechanisms propel the conflict; parallel scenes perform the same dramatic functions; and the same actors appear in materially parallel roles. These are not merely convergences of a shared genre. Taken together with access and timing, they support a strong inference of copying.”