. The Devonian crinoids of the State of New York. Crinoidea, Fossil; Paleontology; Paleontology. Figure 40 Analysis of calyx of Dolatocrinus. Compare with analyses of Clarkeo- crinus, figure 41, Coman- thocrinus, figure 44. Figure 41 Analysis of calyx of Clarkeocrinu s troosti, the genotype. Dorsal cup. Calyx of rather small size, an average dorsal cup measur- ing about cm by cm. Dorsal cup subrotund; distinctly, but not deeply, quinquepartite; basal region somewhat flattened. Basals three, rather large, subequal, closely anchylosed, but generally showing sutures; together forming an i
. The Devonian crinoids of the State of New York. Crinoidea, Fossil; Paleontology; Paleontology. Figure 40 Analysis of calyx of Dolatocrinus. Compare with analyses of Clarkeo- crinus, figure 41, Coman- thocrinus, figure 44. Figure 41 Analysis of calyx of Clarkeocrinu s troosti, the genotype. Dorsal cup. Calyx of rather small size, an average dorsal cup measur- ing about cm by cm. Dorsal cup subrotund; distinctly, but not deeply, quinquepartite; basal region somewhat flattened. Basals three, rather large, subequal, closely anchylosed, but generally showing sutures; together forming an irregularly pentagonal plate which is usually distinctly visible in a side view. Plate about one-third covered by the circular column. Radials hexagonal, large, more than one-third broader than long, the upper edge somewhat concave. Upper lateral edges shorter than the lower lateral, thus causing a pronounced flaring at the sides. First primibrach quadrangular, almost appearing pentangular from the convexity of the lower edge; about twice as wide as high. Second primi- brach, the primaxil, pentagonal. Secundibrachs 2 x 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 Goldring, Winifred, 1888-1971. Albany : University of the State of New York
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpaleont, bookyear1923
