. A catalogue of the collection of Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge. Paleontology; Paleontology. WENLOCK GROUP. ny Case and Column of Drawers. Reference to McCot's Synopsis: and Figures of Genera. FC. FC Gd p. 54. p. 57. Names and References; Observations, &c. Cheirocrinus Fletcheri, n. s. (C. sp. branched arm) Fletcher Coll. Siluria, 2nd ed. App. p. 535. The finest and most curious of all the species. It has repeatedly branched nodose arms, and is the largest of all, and will shew us the affinities with other genera at present
. A catalogue of the collection of Cambrian and Silurian fossils contained in the Geological Museum of the University of Cambridge. Paleontology; Paleontology. WENLOCK GROUP. ny Case and Column of Drawers. Reference to McCot's Synopsis: and Figures of Genera. FC. FC Gd p. 54. p. 57. Names and References; Observations, &c. Cheirocrinus Fletcheri, n. s. (C. sp. branched arm) Fletcher Coll. Siluria, 2nd ed. App. p. 535. The finest and most curious of all the species. It has repeatedly branched nodose arms, and is the largest of all, and will shew us the affinities with other genera at present obscure. b. Crinoids with double rows of plates in the arms. Marsupiocrixras, Phillips. The arrangement of the plates in the broad cup is that of Eucalyptocrinus, Goldfuss, and of Eypan- thocrinus. But the proboscis is not gigantic and solid as in the latter genus: and we do not know enough of Goldfuss' figured genus. Marsupiocrinus caelatus, Phill. (Siluria, 2nd ed. pi. 14, fig. 1, and p. 247, woodcut 55, figs. 1—3). A fine series, shewing young and old cups, arms, interior of arms, stomach surface retracted in rest, or produced into proboscis for feeding on the Gasteropoda. Mr John Gray found that Acrociilia Ha- liotis was the favourite food. See woodcut in Siluria, Foss. 55, as above. Syriocrinus, Hall. Very much resembles Mar- supiocrinus, if it be not the same genus. Hypanthocrinus, Phillips (Sil. Syst.), Eucalyp- tocrinus, Salter, &c. in Siluria, 2nd ed. There is no ground for so altering the gene- ric name: though I myself was the first to propose it. The Devonian genus has a much shorter calyx, and several genera are now found to have the conspicuous star-like arrangement of plates round the interradials b. Numbers and Localities. a. 388, Dudley, F. C. a. 0G7, with Pieudocrinus; a. 389, Dudley, F. C.; a. 390, feeding on Acroculia, Dudley, F. C.; a. 391, Dudley, interior of arms, Ketley Coll.; casts of Gray's specimens (Brit. Mus.).. Please note that these images
Size: 1718px × 1455px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookaut, bookcentury1800, bookdecade1870, booksubjectpaleontology
