FIGURES 13−18 in Pyrisinellidae, a new family of anascan cheilostome bryozoans

FIGURES 13−18. Setosinella prolifica Canu & Bassler, 1933, USNM 73903, holotype, Paleocene, Vincentown Limesand, Vincentown, New Jersey, USA. 13. ovicellate and non-ovicellate autozooids, scale bar = 200 µm; 14. ovicellate autozooids and interzooidal avicularia, scale bar = 100 µm; 15. ancestrula, early astogeny and vicarious avicularium visible at the colony growing edge (centre lower right), scale bar = 200 µm; 16. growing edge of colony fouling an older colony, scale bar = 200 µm; 17. close-up of an ovicellate autozooid and two interzooidal avicularia, scale bar = 100 µm; 18. detail of colony growing edge showing a distal pore window, scale bar = 100 µm.