. Bulletins of American paleontology. 304 Bulletin 305 corallites appearing to have been part of a small, erect, shrub-like colony. Some corallites arise as offsets with their axes proximally per- pendicular to the parent corallite, distally bending until parallel with the parent (Text-fig. 11a). In other cases, offsets arise from a parent corallite at a point where the parent's axis has bent from its more proximal direction (Text-fig. lib; cf. Cladochonus sp. A, Plate 10, fig. 1). In this case, the axes of the offsets are proximally co-planar with the proximal axis of the parent, while distal


. Bulletins of American paleontology. 304 Bulletin 305 corallites appearing to have been part of a small, erect, shrub-like colony. Some corallites arise as offsets with their axes proximally per- pendicular to the parent corallite, distally bending until parallel with the parent (Text-fig. 11a). In other cases, offsets arise from a parent corallite at a point where the parent's axis has bent from its more proximal direction (Text-fig. lib; cf. Cladochonus sp. A, Plate 10, fig. 1). In this case, the axes of the offsets are proximally co-planar with the proximal axis of the parent, while distally their axes bend until about parallel with the distal axis of the parent. Both these offset patterns occur in Cladochonus M'Coy (see Laub, 1972, text- fig. lb). IvAA*. Text-figure 11. — Corallite offset patterns in Cladochonus{7) sp. C. The internal structure is not well-preserved, unfortunately (PL 31, fig. 7). The walls are about 1/6 mm thick, so that the lumen occupies more than half the total diameter of the corallite. Signi- ficantly, the dissepiments appear to be tabulae, separating the lumen into compartments. This contrasts with the typical vesicular dissepiments of Cladochonus, and might call into question the propriety of placing this species in that genus. No spines were de- tected in the corallites. Many corallites parallel one another, so that on many surfaces of the specimen, much of the field occupied by the corallum con- sists of transverse sections of these parallel tubes. The pattern is similar to that often seen in Syringopora (cf. S. (?) reteformis here), but in no case has a stolon been observed connecting the sides of adjacent 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 Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleo


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