. The Devonian crinoids of the State of New York. Crinoidea, Fossil; Paleontology; Paleontology. 190 NEW YORK STATE MUSEUM Ornamentation. The plates of the dorsal cup are ornamented with discontinuous wavy wrinkles. On the rays they have a roughly longi- tudinal arrangement, following the ray axis. On the primary interbrachials there are longitudinal wrinkles in the center with shorter, roughly radiate wrinkles near the periphery. Horizon and locality. From the New Scotland limestone at Schoharie, N. Y. Types. Holotype in the collection of the New York State Museum. Remarks. Craterocrinus scho
. The Devonian crinoids of the State of New York. Crinoidea, Fossil; Paleontology; Paleontology. 190 NEW YORK STATE MUSEUM Ornamentation. The plates of the dorsal cup are ornamented with discontinuous wavy wrinkles. On the rays they have a roughly longi- tudinal arrangement, following the ray axis. On the primary interbrachials there are longitudinal wrinkles in the center with shorter, roughly radiate wrinkles near the periphery. Horizon and locality. From the New Scotland limestone at Schoharie, N. Y. Types. Holotype in the collection of the New York State Museum. Remarks. Craterocrinus schoharie differs from C r a - terocrinus ruedemanni in the smaller size of the dorsal cup and in the greater size of the proximal plates. The radials and primi- brachs are so much larger that the first interbrachial is correspondingly larger and reaches two-thirds of the way up in the cup. C. ruedemanni has three or four rows of tertibrachs incorporated in the cup; C. schoharie, one or two. Because of the imperfect preservation of the specimen it can not be stated whether Craterocrinus schoharie has the variations seen in C . Figure 44 Analysis of _ calyx ruedemanni such as five arms to a ray ofComanthocrinus. J (After Springer 1921, x 2/3). and a fourteen-sided primary interbrachial. interpintuiarsr^plnnuS Named from the locality in which the specimen I Br = first primibrach. was found. Genus COMANTHOCRINUS Springer 1921 l I have had at hand, through the kindness of Doctor Springer, a pre- liminary copy of a paper on Dolatocrinus and allied forms which appeared in the Proceedings of the United States National Museum. In this paper are described a new genus, Comanthocrinus, and two species, one new, belonging to it. Since Springer's observations have been 1 For full discussion, see paper on Dolatocrinus and allied forms, U. S. Nat. Mus. Bui. 115, 1921, pp. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readabili
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpaleont, bookyear1923
