. Bulletin of the British Museum (Natural History). Apertures are small, and peristomes of significant length have not been observed. Measurements. FWL, 0-39-0-51 mm; FWW (distal), 0-09- 0-15 mm; FWW (proximal), 0-03-0-05 mm. Remarks. Most of the available material of this species is fragmentary and poorly-preserved, with surface detail obscured by calcite cement or a ferruginous coating. The species is, however, clearly distinguishable from 'Stomatoporid sp. r by its smaller zooecia and bifurcating branches. Family ONCOUSOECITOAE Canu, 1918 Genus ONCOVSOECIA Canu, 1918 Type species.
. Bulletin of the British Museum (Natural History). Apertures are small, and peristomes of significant length have not been observed. Measurements. FWL, 0-39-0-51 mm; FWW (distal), 0-09- 0-15 mm; FWW (proximal), 0-03-0-05 mm. Remarks. Most of the available material of this species is fragmentary and poorly-preserved, with surface detail obscured by calcite cement or a ferruginous coating. The species is, however, clearly distinguishable from 'Stomatoporid sp. r by its smaller zooecia and bifurcating branches. Family ONCOUSOECITOAE Canu, 1918 Genus ONCOVSOECIA Canu, 1918 Type species. Tubulipora lobulata Hincks, 1880 {=Alecto dilatans Johnston, 1847; see Hastings 1963), by original designation; Recent. Remarks. It was common practice for early palaeontologists. ( Gregory 1896, 1899) to assign all tubuliporinid species with ribbon-like encrusting colonies (probosciniform) to the Recent genus Proboscina Audouin (see above, p. 74). Several Mesozoic species of 'Proboscina' possess gynozooecia ( Walter 1970) which resemble those of the Recent type species of Oncousoecia. The gynozooecium in Oncousoecia is typically small, has a longitudinally elongate distal part and a transversely elliptical ooeciopore a little smaller than an autozooecial aperture. Range. Aalenian to Recent. Oncousoecia coarctata (Canu & Bassler, 1926) Figs 20-22 1926 Proboscina coarctata Canu & Bassler: 8; pi. 28, fig. 1. 1926 Proboscina ricordeauana (d'Orbigny); Canu & Bassler: 7; pi. 27. figs 7-8. 1986 'Proboscina coarctata' Canu & Bassler; Wilson: 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 British Museum (Natural History). London : BM(NH)
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