. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. EUP-] ECHINODERMAIA. 245 111, •b Kep. Jubcar- atycri- Soc. urling- Y. St. star.] J long, posed ygonal plates; ravs consisting of a double series of alternating, subquadrate, am- bulacral ossicles, with curved ambula- cral plates; oral plates 10; pores large, two rows in each ray; adarabulacral and disk-plates spine-bearing. Type E. logani. concinnus, Rin^ueberg, 1886, Bull. Buff. See. Nat. Sci., vol. 5, p. 8, Niag
. North American geology and palaeontology for the use of amateurs, students, and scientists [microform]. Paleontology; Paleontology; Geology; Paléontologie; Paléontologie; Géologie. EUP-] ECHINODERMAIA. 245 111, •b Kep. Jubcar- atycri- Soc. urling- Y. St. star.] J long, posed ygonal plates; ravs consisting of a double series of alternating, subquadrate, am- bulacral ossicles, with curved ambula- cral plates; oral plates 10; pores large, two rows in each ray; adarabulacral and disk-plates spine-bearing. Type E. logani. concinnus, Rin^ueberg, 1886, Bull. Buff. See. Nat. Sci., vol. 5, p. 8, Niag- ara Gr. logani. Hall, 1868, 20th Rep. N. Y St. Mus. Nat. Hist., p. 333, Ham. Gr. Eui'ACHYCKiNus, MeeK & Worthem, 1865, Proc. Acad. Nat. Sci. Phil., p. 159. [Ety. «w, very ; pachys, thick; Tcrinon, lily.] Calyx saucer or bowl shaped ; plates heavy, tumid ; sutures strongly . defined; basals 5; subradials 5; ra- dials 2x5, and sometimes there are third radials in some of the rays; the second radials are often spine- bearing ; azygous interradials 3; arms 5 or 10, composed of a double series of plates, bearing pinnules; column round. Type E. quatuordecembrach- alis. aeperatus, Worthen, 1882, Bull. No. 1, III. St, Mus. Nat. Hist., p. 34, and Geo. Sur. 111., vol. 7, p. 311, Kas- kaskia Gr. bassetti, Worthen, 1875, Geo. Sur. 111., vol. 6, p. 628, Coal Meas. boydi. Meek & Worthen, 1870, Proc. Acad. Nat. Sci. Phil., p. 30, and Geo. Sur. 111., vol. 5, p. 554, Kas- kaskia Gr. craigi, Worthen, 1875, Geo. Sur. III., vol. G, p. 527, Coal Meas. crassus, Meek & Worthen, 1870, ^Cyatho- crinns crassus,) Proc. Acad. Nat. Sci. Phil., p. 392, and Geo. Sur. III., vol. 2, p. 314, Low. Coal Fio. 304.—Eupachycrlnutt crassus. Diagram. fayettensis, Worthen, 1873, Geo. Sur. 111., vol. 5, p. 565, Up. Coal Meas. formosus, Worthen, 1873, (Zeacrinus formosus,) Geo. Sur. Ill,, vol. 5, p, 549, Kaskaskia Gr. gerinanus, S A. Miller, 1879, Jour. Cin. Soc. Nat. Hist., vol. 2, p. 40, Ka
Size: 1442px × 1733px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., boo, bookcentury1800, booksubjectgeology, booksubjectpaleontology
