. Report upon the palaeontology of the province of Ontario [microform]. Paleontology; Paléontologie. GcmtH CavPTOPOBA I Nicholson). Kiel. »». n. Friv{iiifiit nf Krlefiiira I'hillipni, (Nlaiiii' In uliivhtlit' miU'r iikii-ccI- liiliiiMii> liiriT linn litt'ii removed, hIiouIii); tilt' liuuka of the vuIIh, cii- larKcd. From tlivOurnlferouM Lime- â¢unit!, (Canadian Jnxtmnl, Vol. XIV., No. 2, and Annals of Nat. History, Feb. 1874.) Polyzoary forming a rigid infundibuliform calcareous expansion, springing trom a strong, solid, branching foot-stalk or rhizome. Exterior of the cuonoecium, formin
. Report upon the palaeontology of the province of Ontario [microform]. Paleontology; Paléontologie. GcmtH CavPTOPOBA I Nicholson). Kiel. »». n. Friv{iiifiit nf Krlefiiira I'hillipni, (Nlaiiii' In uliivhtlit' miU'r iikii-ccI- liiliiiMii> liiriT linn litt'ii removed, hIiouIii); tilt' liuuka of the vuIIh, cii- larKcd. From tlivOurnlferouM Lime- â¢unit!, (Canadian Jnxtmnl, Vol. XIV., No. 2, and Annals of Nat. History, Feb. 1874.) Polyzoary forming a rigid infundibuliform calcareous expansion, springing trom a strong, solid, branching foot-stalk or rhizome. Exterior of the cuonoecium, forming a continuous, non-perforutcd, thin, calcareous membrane, internal to which is a second or intermediate layer, the two being com)K)sed of the amalgamated or coalcscent branches (" interstices "). This intermediate layer is marked by shallow longitudinal and bifurcating sulci corresp inding with the lines between the branches, and its surfaoo exhibits I'cticulating lines which corrcs- fiond with the bases or proximal ends of the cells. The internal surface of the intermediate layer carries the cells, which are flask-shaped, and arc arranged in double rows, forming regularly flexuous lines, enclosing ovuHntcrspaces, exactly as in liilepora. The oval interspaces, however, instead of constituting so many '' fcnestrules " are the bases of so many pillars, which procoed perpendicularly inwards, across a central space, to join with an internal calcareous membrane which forms the innermost lining of the frond. It follows from the above description that the mouths of the cells in C'rij/itopm'a, neither open on the exterior of the frond, as is commonly the case in Fcnetitdia, nor open on the interior of the polyzoa- ry, as is the case in the infundibuliform species of Jleti jiDi'u. On the contrary, we have in tills extraordinary gen- us the entirely unique arrangement that both the internal and ex- ternal aspects of the funnel-shajied frond are to a
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectpaleontology, bookyea
