Heyler, D. & Poplin, C. (1989)
Systematics and relationships among the Xenacanthiformes (Pisces, Chondrichthyes) in the light of Carboniferous and Permian French material. Acta Musei Reginaehradecensis, Ser. A, Scientiae Naturales, 22, 69–78
Heyler, D. & Poplin, C. (1990)
Les Vertébrés autuniens de Buxières-les-Mines (Allier, France). Bulletin du Muséum National d'Histoire Naturelle, (Série 4), 12(2), 225–239