Tham khảo Dendrocerotales

  1. 1 2 Hässel de Menéndez, Gabriela G. (1988). “A proposal for a new classification of the genera within the Anthocerotophyta”. Journal of the Hattori Botanical Laboratory 64: 71–86. 
  2. 1 2 3 Duff, R. Joel; Villarreal, Juan Carlos; Cargill, D. Christine; Renzaglia, Karen S. (2007). “Progress and challenges toward a phylogeny and classification of the hornworts”. The Bryologist 110 (2): 214–243. doi:10.1639/0007-2745(2007)110[214:PACTDA]2.0.CO;2.  Chú thích sử dụng tham số |coauthors= bị phản đối (trợ giúp)
  3. Milde, J. (1859). “Über das Genus Notothylas Sullivant”. Botanische Zeitung 17 (6): 49–55.