. The Devonian crinoids of the State of New York. Crinoidea, Fossil; Paleontology; Paleontology. 174 NEW YORK STATE MUSEUM primary interbrachial is followed by a hexagonal plate which supports three others, two small ones on the sloping superior lateral faces, and a fairly large pentagonal plate on the upper face, which joins the two cunei- form plates in each of the interambulacral areas of the tegmen. A single cuneiform plate in the tegmen extends out between the arms of each pair. " Respiratory slits " not visible. Horizon and locality. From the Onondaga limestone, Cherry Valley,
. The Devonian crinoids of the State of New York. Crinoidea, Fossil; Paleontology; Paleontology. 174 NEW YORK STATE MUSEUM primary interbrachial is followed by a hexagonal plate which supports three others, two small ones on the sloping superior lateral faces, and a fairly large pentagonal plate on the upper face, which joins the two cunei- form plates in each of the interambulacral areas of the tegmen. A single cuneiform plate in the tegmen extends out between the arms of each pair. " Respiratory slits " not visible. Horizon and locality. From the Onondaga limestone, Cherry Valley, N ew York. Types. Holotype in the New York State Museum. Remarks. See Remarks under Dolatocrinus lobatus. Dolatocrinus insignis sp. nov. Plate 19, figures 3-6; text figure 39 A very large species, the largest well-preserved specimen observed measuring 55 mm in breadth by about 20 mm in height. Another, fragmentary, specimen would have measured fully 60 mm in breadth. Dorsal cup probably low, with the basal region flattened, or even some- what concave. Periphery decidedly lobate; tegmen almost flat. Dorsal cup. Basals three, fused into a large pentagonal disk which projects considerably beyond the column; center of disk deeply exca- vated. Radials hexagonal, averag- ing about twice as broad as high. First primibrachs quadrangular, narrower than the radials and not. insignis Dia- Figure 39 Dolatocrinus grammatic restoration to show large size attained by this species. Basal view of the dorsal cup of the specimen figured on plate 19, figure 6. so high. Primaxils pentagonal, of about the same width as the first primi- brachs and higher, supporting 4x10 fixed secundibrachs. First two secundi-. 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 Yo
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpaleont, bookyear1923
