. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. 'W^ n i. li ir I \ ' t -4-j IHil 440 THE CARB0NIFEU0D3 SYSTEM. described by Goeppert as Araucaritea carbonarius is probably also Sigillarian. 2. Calamodf,ndron or Calamttea.—These plants are much less known than the proper Sigillarias, and it is perhaps doubtful if they should not form a separate family. In the meantime I place them here, simply becaus
. The geology of Nova Scotia, New Brunswick, and Prince Edward Island, or, Acadian geology [microform]. Geology; Geology, Stratigraphic; Paleontology; Geology, Economic; Géologie; Géologie stratigraphique; Paléontologie; Géologie économique. 'W^ n i. li ir I \ ' t -4-j IHil 440 THE CARB0NIFEU0D3 SYSTEM. described by Goeppert as Araucaritea carbonarius is probably also Sigillarian. 2. Calamodf,ndron or Calamttea.—These plants are much less known than the proper Sigillarias, and it is perhaps doubtful if they should not form a separate family. In the meantime I place them here, simply because they seem to approach more nearly to Sigillarice than any other plants in their structure. They were of less massive growth than Sigillarice, being rarely more than a few inches in diameter; they had stems fluted lengthwise like Sigillaria, but more distinctly divided into nodes or joints by the scars of branches which were borne in whorls, and carried their narrow, slender leaves. In their habit of Fig. 162.— (a, b) Casts of axis in bandstor?, with woody envelope, reduced, (e, d) Woody tissue, liighly mngnilied. growth they thus resembled the pine tribe, and they seem to have had a larger amount of true wood in their stems than was the case with Sigillaria, This cylinder of wood contained a thick pith, which was constricted at intervals into joints, and had also a longitudinal striation on the outside; and as this pith from its ready decay admitted sand into the interior of the stem, while the wood was entire or in process of conversion into coal, we often have a stem of Calamodendron repre- sented merely by a cast of the pith in stone. In this case the pith cylinder may be easily mistaken for a plant of the genus Calatnifes, which, as we shall immediately find, was quite a different thing. I. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of thes
Size: 1172px × 2133px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
