Quinkana remains an outlier because it is the only ziphodont genus within the subfamily. The Mekosuchinae classification was contrasted in the 1994 speciation of Q. timara suggesting that further research into the phylogeny of Pristichampsus and Quinkana was necessary because of significant “structural similarities” in the snout when compared to other Crocodylidae.
Quinkana stands out as a unique case since it is the only ziphodont genus within its subfamily. The Mekosuchinae classification was challenged in the 1994 speciation of Q. timara, which suggested that further investigation into the evolutionary relationships between Pristichampsus and Quinkana was warranted due to notable "structural similarities" observed in their snouts compared to other Crocodylidae.