Vertebrate fossils include fish, crocodylomorphs, mammals, small reptiles, amphibians, theropod and sauropod dinosaurs and pterosaurs.

[1] The Kilmaluag Formation was deposited during the Bathonian stage ~167 million years ago and is part of the Great Estuarine Group.

In contrast, during transgressions, sediment influxes and increases in water depth led to the deposition of finer grained silts and muds.

[1][6] Notable vertebrate fossil recent discoveries in the Kilmaluag Formation include Palaeoxonodon ooliticus[7] and Wareolestes rex.

Exposures of the Kilmaluag Formation are protected by law as SSSIs (Site of Special Scientific Interest) and under the new Scottish NCO (Nature Conservation Order), thus no public collection is permitted.