. Bulletin of the British Museum (Natural History). . Figs 71-74 CeaM granulata (Canu & Bassler). Fig. 71, USNM 69899c, Fig. 72, USNM 69899a; 72A, branch with autozooecial frontal walls i walls, X 53. Fig. 73, BM(NH) D55086; 73A, bifurcating branch, x 12 broken gynozooecium, x 30. Remarks. Mesenteripora is a piagioeciid genus with erect, foliaceous colonies which are bilamellar, the zooecia budding from both sides of a median budding lamina. In the type species, colonies have tightly folded sinuous fronds, and the gynozooecium is subtriangular in outline (see Walter 1970). Ncocom


. Bulletin of the British Museum (Natural History). . Figs 71-74 CeaM granulata (Canu & Bassler). Fig. 71, USNM 69899c, Fig. 72, USNM 69899a; 72A, branch with autozooecial frontal walls i walls, X 53. Fig. 73, BM(NH) D55086; 73A, bifurcating branch, x 12 broken gynozooecium, x 30. Remarks. Mesenteripora is a piagioeciid genus with erect, foliaceous colonies which are bilamellar, the zooecia budding from both sides of a median budding lamina. In the type species, colonies have tightly folded sinuous fronds, and the gynozooecium is subtriangular in outline (see Walter 1970). Ncocomian species of the genus have been revised by Walter (1985). Range. Pliensbachian to Recent. ?Mesenteripora campicheana (d'Orbigny, 1853) Fig. 75 1853 Bidiastopora canipicl}cana d'Orbignv: SOO; pi. 784, figs 6-8. 1985 Mesenteripora cainpichcana (d'Orbigny) Walter: 10; pi. 1, tigs 1-9; pi. 9, tigs 6-7. lectotype (herein selected), with autozooecial frontal walls intact, x U). Tiissing, x 11; 72B, obliquely orientated autozooecia lacking frontal :; 738, circular autozooecial apertures, x 57. Fig. 74, BM(NH) D55084, Material. BM(NH) D55441, Little Coxwcll Pit. Davis Colin. Description. A single poorly-preserved fragment (2x3 mm) of a thin bilamellar frond about 0-3 mm in thickness (Fig. 75A). The autozooecia arc immersed, and have apertures which are circular to longitudinally elongate with a slightly raised peristome (Fig. 75B). No gynozooecia are preserved; in specimens described by Walter (1985), the gynozooecia arc boomerang-shaped with lateral lobes extending distaily ol the ooecioporc. Ml ASiiRLMliNTS. TAM. mean O-OS mm; 'WW. mean 0-15 mm. RiMARKS. The absence ol g\iuvooecia pieeludes certain ileteriniiialuni ol this specimen wliuli is, lunvcNcr. worthy ol. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original


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