Synonymy

• Phascopsida Weidmann, Sborn. Učitelsk. 10: 22, 37. 1895 (“Phascaceae”).

Primary references

• Ritgen, F. von. 1828. Über die Aufeinanderfolge des ersten Auftretens der verschiedenen organischen Gestalten. J. Ch. Krieger, Marburg. 60 pp. (Preprinted from Schriften der Gesellschaft zur Beförderung der gesamten Naturwissenchaften zu Marburg 2: 41–138. 1831. Google Books) Preprint in Google Books Reference page. 

Additional references

• Doweld, A.B. 2001. Prosyllabus Tracheophytorum. Tentamen systematis plantarum vascularium (Tracheophyta) [Prosyllabus Tracheophytorum. Опыт системы сосудистых растений]. LXXX + 110 pp. Moscow: Geos. ISBN 5-89118-283-1. DJVU Reference page. 

• Chang, Y. & Graham, S.W. 2014. Patterns of clade support across the major lineages of moss phylogeny. Cladistics, 30(6): 590–606. DOI: 10.1111/cla.12066 . Reference page. 
• Goffinet, B.; Buck, W. R. 2004: Systematics of the Bryophyta (Mosses): From molecules to a revised classification. Monographs in Systematic Botany [Molecular Systematics of Bryophytes] 98: 205–239. ISBN 1-930723-38-5
• Goffinet, B.; Buck, W. R.; & Shaw, J. 2008: Morphology and Classification of the Bryophyta. pp. 55-138 in Goffinet, B. & J. Shaw (eds.) Bryophyte Biology, 2nd ed. Cambridge University Press. ISBN 9780521872256
• Classification of the Bryophyta (after Goffinet, Buck, & Shaw, 2008. Hosted at the Goffinet Lab.)