Article: Development of rhabdosomes with four primary branches in the group Dictyonema flabelliforme (Eichwald)
Publication: Special Papers in Palaeontology
Graptolite studies in honour of O. M. B. Bulman
R. B. Rickards, D. E. Jackson and C. P. Hughes
The existence of rhabdosomes with four true primary branches is shown, and their mode of development explained, in a population occupying an intermediate position between Dictyonema sociale mehaigueni Legrand and Dictyonema sociale praeafricanum Legrand.