Despite the naming of "Sauropelta" two years earlier, confusion arose in 1972 when the name "Peltosaurus" was inadvertently published as the caption of a photograph of AMNH 3036. Although Brown never published a name or description for the remains which are now known as "Sauropelta edwardsorum", "Peltosaurus" was the name he informally used in lectures and museum exhibits. However, the name "Peltosaurus" was preoccupied by a genus of North American lizard from an extinct branch of the modern family Anguidae (the alligator lizards and the legless glass lizards) and is no longer used to refer to the dinosaur.