Figure 3 in Brood chambers constructed from spines in fossil and Recent cheilostome bryozoans

Figure 3. Distelopora bipilata Lang, Lower Cenomanian, Cambridge, England. A, part of a colony with several nonovicellate autozooids and one broken ovicell, NHM D21883. B, ovicell spine bases forming a semicircle, NHM D21881. C, ovicell spine bases at some distance from the mural rim, NHM D21881. D, ovicell spine bases forming a gentle arch. Medial spines are adjacent to the proximal edge of the mural rim of the distal zooid, NHM BZ4958. Scale bars: A = 100 Mm; B–D = 50 Mm.Published as part of Ostrovsky, Andrew N. & Taylor, Paul D., 2005, Brood chambers constructed from spines in fossil and Recent cheilostome bryozoans, pp. 317-361 in Zoological Journal of the Linnean Society 144 (3) on page 323, DOI: 10.1111/j.1096-3642.2005.00179.x, http://zenodo.org/record/543471