. The Devonian crinoids of the State of New York. Crinoidea, Fossil; Paleontology; Paleontology. DEVONIAN CRINOIDS OF NEW YORK I89. Named in honor of Dr Rudolf Ruedemann of the New York State Museum. Craterocrinus schoharie sp. nov. Plate 20, figure 9; text figure 43 This species is described from a single dorsal cup which, though imperfect, is suf- cient for purposes of identification. Dorsal cup broadly shallow, a little more than twice as broad as high. Basal disk pentagonal, slightly projecting at the base and forming a depression into which the column is rather deeply sunk. Plates of the
. The Devonian crinoids of the State of New York. Crinoidea, Fossil; Paleontology; Paleontology. DEVONIAN CRINOIDS OF NEW YORK I89. Named in honor of Dr Rudolf Ruedemann of the New York State Museum. Craterocrinus schoharie sp. nov. Plate 20, figure 9; text figure 43 This species is described from a single dorsal cup which, though imperfect, is suf- cient for purposes of identification. Dorsal cup broadly shallow, a little more than twice as broad as high. Basal disk pentagonal, slightly projecting at the base and forming a depression into which the column is rather deeply sunk. Plates of the basal disk so anchylosed that the lines of suture are not visible. Radials hexagonal, low and broad, about three Figure 43 Analysis of calyx of c r a t e r o- times as wide as long. Primibrachs two, crinus schoharie. a little narrower than the radials. First primibrachs quadrangular, about twice as wide as long. Second primibrachs axillary, of the same width as the first primibrachs but slightly higher. Secundibrachs two, large, the second axillary. Tertibrachs not readily distinguished, due to the weathered and broken character of the rim. One bifurcation, above the secundibrachs, shows two tertibrachs in the outer arm of the bifurcation and one in the inner; decided flaring of the rim in this region indicates that the arms begin here. Primary interbrachial large, entirely enclosed by the brachials and twelve-sided, being bordered on each side by one radial, two primibrachs, two secundibrachs, and one tertibrach. Higher interbrachials not distinguished. Tegmen unknown. Arms wanting; twenty, four to each ray, stout, and probably biserial. Column small and deeply set in the basal disk; known only from the 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 : Univer
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpaleont, bookyear1923
