Foumtizia pattersoni was a small catshark living in warm Eocene seas. It probably occupied a bottom-associated predatory niche, moving over or close to the seabed in search of small prey rather than roaming as a large open-water hunter.

The tiny pointed teeth indicate a grasping diet. Small fishes, crustaceans and other invertebrates are plausible prey based on the feeding ecology of living catsharks, although direct evidence of the diet of F. pattersoni is not preserved.

The species is known chiefly from minute isolated teeth, which means its body form cannot be reconstructed in detail. These fossils are nevertheless important because they record the smaller components of the shark community and show that the early Eocene seafloor supported a varied assemblage of modest-sized predators.