↑Hyvönen, J.; Piippo, S. (1993). “Cladistic analysis of the hornworts (Anthocerotophyta)”. 《Journal of the Hattori Botanical Lab》 74: 105–119.더 이상 지원되지 않는 변수를 사용함 (도움말)
↑Milde, J. (1859). “Über das Genus Notothylas Sullivant”. 《Botanische Zeitung》 17 (6): 49–55.
↑Proskauer, J. (1960). “Studies on Anthocerotales. VI. On spiral thickenings in the columella and its bearing on phylogeny”. 《Phytomorphology》 10 (1): 1–19.
↑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.
↑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.더 이상 지원되지 않는 변수를 사용함 (도움말)