With the discovery of the basal dinosaur Staurikosaurus, Spondylosoma drew attention as a possible relative. Authors went back and forth on the question, considering it either as a basal dinosaur, or as a "thecodont" or other basal archosaur.
The discovery of Staurikosaurus led to debate about Spondylosoma's classification, with some considering it a basal dinosaur, while others categorized it as a "thecodont" or another early archosaur.