Notothyladaceae (Milde) Mull.Frib. ex Prosk.
Mesoceros Piippo , legitimate, scientific
Piippo, S. (1993), Acta Botanica Fennica 148: 30 [tax. nov.]
Duff, R.J., Villarreal, J.C., Cargill, D.C. & Renzaglia, K.S. (2007), Progress and challenges toward developing a phylogeny and classification of the hornworts. The Bryologist 110(2): 239 [secondary reference]