FIG. 3 in Bertorsonidra n. gen. (Bryozoa, Cheilostomata) for Tremopora prenanti Gautier, 1955, a rare species from the Mediterranean

FIG. 3. — Bertorsonidra prenanti (Gautier,1955) n. comb., fossil specimens from Sicily: A-D, early Pleistocene from the Pianometa section, central-eastern Sicily (PMC. R.I.Ps. B 9b); E-G, late Pliocene or early Pleistocene from Contrada Inferno, East of Furnari, NE Sicily (PMC. R.I. B 9c); A, sterile zooids, some with avicularia; B, detail of A; C, ovicellate zooids; D, well-preserved primary orifice with condyles and two oral spines; E, a few zooids, the sculpture of the frontal surface locally masked by dissolution at contact with overgrowing algae; F, a proximally broken zooid with intact orifice; G, close-up of an avicularium. Scale bars: A-C, E, F, 500 μm; D, G, 100 μm.