 At least eight fossil sillaginid species have been found, all of which are believed to be of the genus "Sillago" based on the only remains found, otoliths.Only one species of extant sillaginid, "Sillago maculata", has been found in the fossil record, and this was in very recent Pleistocene sediments.The relationships of the Sillaginidae are poorly known, with very similar morphological characteristics and a lack of genetic studies restricting the ability to perform cladistic analyses on the family.