Template:Bell et al., 2007
- Bell, N.E., Quandt, D., O'Brien, T.J. & Newton, A.E. 2007. Taxonomy and phylogeny in the earliest diverging pleurocarps: square holes and bifurcating pegs. The Bryologist 110(3): 533–560. DOI: 10.1639/0007-2745(2007)110[533:TAPITE]2.0.CO;2
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