. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Kio. 420 —SteKBiiocrlnuB coiiclnnu!>. radials 3x5; secondary radials lx2x 5, in each ray; regular interradials 3 to 6x4; assy^ous interradials 3 to 10 or more; vault elevated, with long sub- central tube; arms bifurcating; column round. Type 8. pentagoiius. araneolus, Meek & WortTien, 1860. (Acti- nocrinus araneoluH,) Proc. Acad. Nat. 8ci. Pbil., p. 387, and Geo. Sur. III., vol. 2, p. 198, Burlington Gr. Fi
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. Kio. 420 —SteKBiiocrlnuB coiiclnnu!>. radials 3x5; secondary radials lx2x 5, in each ray; regular interradials 3 to 6x4; assy^ous interradials 3 to 10 or more; vault elevated, with long sub- central tube; arms bifurcating; column round. Type 8. pentagoiius. araneolus, Meek & WortTien, 1860. (Acti- nocrinus araneoluH,) Proc. Acad. Nat. 8ci. Pbil., p. 387, and Geo. Sur. III., vol. 2, p. 198, Burlington Gr. Fio. i'Mi — Vauit uiid part of the ruys ; a hu(1 rf Hliowiiig structure of the rays. pentagonuH, Hall, 1858, i Actinocrinus pentagonus,) Geo. Sur. Iowa, p. hll, Burlington (ir. sculptus. Hall, 1858, (Actinocrinus sculp- tus,) Geo. Sur. Iowa, p. 582, Burling- ton Gr. Stemhatocuinvs, Tra"'t- schold, 1867, Grin. d. jungeren Bergkalkes b. Moskau, p. 28. [Ety. «/<')nma, wreath; krinon, lily.] Calyx low, cup-shapecl ; basals 5, auchylosed; subradials 5; radials twice as wide as high ; brachials 1 x 5; arms heavy. Tyj)e S. cornuus. This is closely related to Er- isocrinus aud Eupa- chycrinus. trautsclioldi, Wachs muth (& Springer, 1886, He vis. Paleeo- crinoidea, pt. 3, p. 256, Keokuk Gr. Stbnastek, Billings, 1858, Can. Org. Rem., Decade 3, p. 77. [Ety. stmos, narrow; €uUr, star.] Disk small, rays extended, flexible; dorsal side covered with small. 1''1G. 431.—Stegano crliius sculptuM. Diaaram of a ray and transverse 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 Miller, S. A. (Samuel Almond), 1836-1897. Cincinnati : [s. n. ]
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