. Elements of geology : a text-book for colleges and for the general reader. Geology. Fig. 533. Fig. 532 a. Figs. 530-533.—Echinodekms op the Carboniferous Age— CHnid: 530. Zeacrinus elegans (after Hall). Echinoids and Asteroids ; 531. Oligoporus nobilis, x J (after Meek). 532. a, Archseoci- daris Wortheni (after Hall); b, Spine of same, natural size. 533. Onychaster flexilis (after Meek). also continue, but both may be said to pass out with this age, although a few seem to pass into the Lower Triassic. __— PALAEOZ O IC -__ ilurian Devon 5 Carton ifl- NEOZOIC. STEMM EID Fig. 534.—Diagram showi
. Elements of geology : a text-book for colleges and for the general reader. Geology. Fig. 533. Fig. 532 a. Figs. 530-533.—Echinodekms op the Carboniferous Age— CHnid: 530. Zeacrinus elegans (after Hall). Echinoids and Asteroids ; 531. Oligoporus nobilis, x J (after Meek). 532. a, Archseoci- daris Wortheni (after Hall); b, Spine of same, natural size. 533. Onychaster flexilis (after Meek). also continue, but both may be said to pass out with this age, although a few seem to pass into the Lower Triassic. __— PALAEOZ O IC -__ ilurian Devon 5 Carton ifl- NEOZOIC. STEMM EID Fig. 534.—Diagram showing General Distribution of Echinoderms in Time: Shaded portion, stemmed; unshaded, free. Trilobites and Eurypterids also continue ready to disappear at the end, but an advance in the Crustacean class is observed in the intro-. 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 LeConte, Joseph, 1823-1901. New York : D. Appleton and Co.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectgeology, bookyear1892
