. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 161 Distinguishing- Chnracters.—Reticulated aspect of frondvs; oval fenestrnles; nine to ten apertui-es to each fenestrnle, completely surrounding" it. (On account of the expansion of the carina to nearly the middle of the branches, this face may appear like the non-celluliferons face, especiallv ^Yhen embedded in rock.) Found in the Demissa bed, at Section •") (common). Genus RETEPORIXA. D'Orbigxy. [pyrv. : Btte, net; poras, pore.] (1850: Prodoine de T. I., p. 101.) Bryozoum fenestelloid, with sin


. Bulletin of the Buffalo Society of Natural Sciences. Natural history; Science. 161 Distinguishing- Chnracters.—Reticulated aspect of frondvs; oval fenestrnles; nine to ten apertui-es to each fenestrnle, completely surrounding" it. (On account of the expansion of the carina to nearly the middle of the branches, this face may appear like the non-celluliferons face, especiallv ^Yhen embedded in rock.) Found in the Demissa bed, at Section •") (common). Genus RETEPORIXA. D'Orbigxy. [pyrv. : Btte, net; poras, pore.] (1850: Prodoine de T. I., p. 101.) Bryozoum fenestelloid, with sinuous and anastomosinii,' branches. The non-celluliferous side has the appearance of a net-work, with oval fenestrnles; while the cellniiferous side shows sinuous branches, with a doultle row of apertures on each. Reteporina striata. (Hall.) (Fio-. .")().) (Gth Ann. Rep't X. Y. State (ieol., p. 4.',. PI. HI. 1SS6.) Distinguishing racters. — Reticulated appearance of frond: fre(piently a pi-ominent node at point of junction of branches; sinuous branches of celluliferous face, apparently con- nected by wide, depressed dissepiments; thin, f"'"- ^^- ^^''- •^ ' ' ' pan ltd striaiii. elevated and crenulated carina between a]»er- an7"cHiuiiferous -f-111-oa sides. eiilai'Ked. x '^^"'^*- 4 (after Hall). Found in the Demissa bed, at Section 5. Genus UXITRYPA. Hall. [Ety. : Unus, one ; try pa, perforation.] (1885: Rep't N. Y. State Geologist for 1884, p. 36.) Bryozoum consisting; of fenestelloid fronds, with two rows of apertui-es, separated by a carina on the celluliferous face of each branch. The carina^ ai"e prominent, high, thick- ened near the top, and those of adjacent branches are connected by thin obli(|nely-]ilaced, oi- abrn])tly-l)ent, trans- verse ])lates oi' sciiln'.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustr


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