FIGURE 5. Pirabasoporella baitoae n in A new genus of the family Jaculinidae (Cheilostomata, Bryozoa) from the Miocene of the tropical western Atlantic

FIGURE 5. Pirabasoporella baitoae n. sp. A, holotype, general view (collection number USNM 595120). B, detail of aperture of holotype, with suboral avicularium. C, paratype (collection number USNM 595121) showing late ontogenetic stage with several closed frontal pores. D, paratype (collection number USNM 595122) with partly preserved struts. E, strut initiated from two different pore plates (i.e. zooids) on one side of branch while fusing towards, and connecting with, a single pore plate on the opposite branch (collection number USNM 595123). F, paratype (collection number USNM 595124) showing strutproducing pore plates (right margin), rhizoid-producing pore plates (left margin and central part), and small oval avicularia in the bifurcation and on zooids in the branch centre (arrow). G, lateral view of paratype (collection number USNM 595125) showing three round, strut-producing pore plates (black arrows on two of them), two oval rhizoid pore plates (centre), and two small avicularia (white arrows). Scale bars all 100 µm.