. Bulletin of the British Museum (Natural History). 169B 0 169C. Figs 169-170 CoUaponi hillmen sp. run. {p. «7). I ig. 169, BM(NH) D58209; 169A, branch with flattened attachment structure at the distal end, X 20; 169B, band of long autozooecia, x 42; 169C, autozooecia, x 140. Fig. 170, BM(NH) D58208, holotype; 170A, gynozooecium with abraded frontal wall, x 55; 170B, ooeciopore with autozooecial aperture above, x 225. Taylor (1986^>) for primitive anascans with irregularly pluri- serial colonics and zooecia which have a simple morphology and either lack or have sporadically-develo
. Bulletin of the British Museum (Natural History). 169B 0 169C. Figs 169-170 CoUaponi hillmen sp. run. {p. «7). I ig. 169, BM(NH) D58209; 169A, branch with flattened attachment structure at the distal end, X 20; 169B, band of long autozooecia, x 42; 169C, autozooecia, x 140. Fig. 170, BM(NH) D58208, holotype; 170A, gynozooecium with abraded frontal wall, x 55; 170B, ooeciopore with autozooecial aperture above, x 225. Taylor (1986^>) for primitive anascans with irregularly pluri- serial colonics and zooecia which have a simple morphology and either lack or have sporadically-developed spine bases. Range. Aptian (?Barremian) to Albian (? Campanian). Charixalhuydi {?in, 1976) Figs 166-168 1976 'Membranipora' Ihuydi Pitt: 65; pi. 1, figs A-D. meb Charixa Ihuydi (Pitt) Taylor; 203; figs 4, 5. Holotype. BM(NH) D52494, Little Coxwcll Pit, Pitt Colin. Paratype. BM(NH) D52495, Little Coxwell Pit, Pitt Colin. Other material. BM(NH) D54190-200, Hindc Colin; D55067, Little Coxwell Pit, Davis Colin; D55068, Little Coxwell Pit, Elliott Colin. Description. Colonics arc encrusting and comprise irregular pluriscrial patches of zooecia (Fig. 166A) which sometimes show multilamellar overgrowth. Zooecial orientations and budding positions are difficult to ascertain in the poorly- preserved material which is available. However, in one specimen a line of caudate autozooecia (Fig. 168) appears to bud distolateral non-caudate autozooecia of the type more typical of the species. Autozooecia are usually elliptical in outline (Fig. 168B) and have a slight proximal gymnocyst. Rarely, autozooecia are pyriform and have a caudate proximal gymnocyst about half the length of the zooecium. In the holotype, autozooecial length averages 0-44 mm and width 0-33 mm. Opcsiae are elongate elliptical and occupy most of the frontal surface of the majority of autozooecia. Cryptocysts are usually obscured by calcitc cement but appear to be steeply sloping and seem to be pustulose. Unequivocal clo
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