↑Buck, W. R.; Cox, C. J.; Shaw, J.; Goffinet, B. (2004) "Ordinal relationships of pleurocarpous mosses, with special emphasis on the Hookeriales". Systematics and Biodiversity 2: 121-145.
↑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.