. Annual report . l climacograptid aspect and the apertural spines of the thecae 15 Relatively long specimen 16 Specimen of average size 17 Rhabdosome showing long filiform processes of the sicular end Originals of figures 14 to 17 from Ash hill quarry, Mt Moreno,Columbia co. N. Y. 18 Specimen with the distinct thecal form of a Climacograptus. x2 Graptolite bed 7 of the Deep kill section 19 Rhabdosome with a different aspect of the thecae. x5 Ash hill quarry, Mt Moreno, Columbia co. N. Y. 20 Rhabdosome with long, stout sicular spines. x7 Graptolite bed 7 of the Deep kill section Climacograptus
. Annual report . l climacograptid aspect and the apertural spines of the thecae 15 Relatively long specimen 16 Specimen of average size 17 Rhabdosome showing long filiform processes of the sicular end Originals of figures 14 to 17 from Ash hill quarry, Mt Moreno,Columbia co. N. Y. 18 Specimen with the distinct thecal form of a Climacograptus. x2 Graptolite bed 7 of the Deep kill section 19 Rhabdosome with a different aspect of the thecae. x5 Ash hill quarry, Mt Moreno, Columbia co. N. Y. 20 Rhabdosome with long, stout sicular spines. x7 Graptolite bed 7 of the Deep kill section Climacograptus? (Cryptograptus) antennarius Hall Page 731 21-23 Frontal views of rhabdosomes showing the long nemacaulus and longspines of the sicular end 24 Specimen showing the form of the thecae in the antisicular portion 25 Rhabdosomes showing the thecal aperture and character of the sicular end. x2 26 Rhabdosome showing apertural spines Graptolite bed 7 of the Deep kill section ORAPTOLITKS Memoir 7 NY State Museum Plate 16. W. S. i t h. GRAPTOLITES OF NEW YORK. PART 1 781 Genus glossograptus Emmons, Lapworth hystrix sp. nov. Page 724 27 Rhabdosome. x7 28-29 Specimens showing the multispinous character of the rhabdosome. x2Graptolite bed 7 of the Deep kill section Glossograptus echinatus sp. nov. Page 725 30, 31 Small rhabdosomes showing the distribution of the spines32 Nearly perfect rhabdosome (rraptolite bed 7 of the Deep kill section Genus retiograptus HallRetiograptus tentaculatus Hall Page 733 33, 34 Rhabdosomes showing the prevalent expression of the form in the Deep kill beds. x235 Specimen showing the extrathecal meshes. x2Graptolite bed 7 of the Deep kill section 782 NEW YORK STATE MUSEUM PLATE 17 Genus trigonograptus NicholsonTrigonograptus ensiformis Hall (sp.) Page 727 1 Very young rhabdosome 2 A more advanced growth stage Ash hill quarry, Mt Moreno, Columbia co. N. Y. 3 Largest specimen observed 4, 5 Fragments of rhabdosomes
Size: 1335px × 1871px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectscience, bookyear1902
