Scabrotrigonia was named by Dietrich (1933) [Sepkoski's age data: K Barr K Maes-u Sepkoski's reference number: 891,1124].

It was reranked as Trigonia (Scabrotrigonia) by Rennie (1945); it was synonymized subjectively with Pterotrigonia by Cox (1952); it was reranked as Pterotrigonia (Scabrotrigonia) by Tashiro and Kozai (1982), Tashiro (1988), Mendir et al. (2021).

It was assigned to Trigonia by Rennie (1945); to Trigoniidae by Vokes (1980); to Trigonioida by Sepkoski (2002); to Scabrotrigoniini by Bouchet et al. (2010); and to Pterotrigonia by Tashiro and Kozai (1982), Tashiro (1988), Mendir et al. (2021).