Hauff (1921) mentioned it as a nomen nudum, and Hennig (1925) provided the first formal description, retaining the name but describing it in detail alongside additional specimens.

[3] Since the 1925 description, over a dozen specimens, including isolated bones and partial skeletons, have been noted in various museum collections, though many remain undescribed or misidentified.

This include a juvenile specimen under one meter long, present in the Urwelt Museum Hauff, awaiting formal study that may reveal ontogenic shifts.

[5] There have also been suggestions of synonymy between Strongylosteus hindenburgi and Gyrosteus mirabilis, mainly due to incomplete descriptions and preservation issues.

Authors also pointed out that a modern redescription and phylogenetic analysis of both Strongylosteus and Gyrosteus is still necessary to clarify their evolutionary relationships within Chondrosteidae.