The Geology of Minnesota volume 31
The Geology of Minnesota volume 31
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In our eReader you can find the full English version of the book. Read The Geology of Minnesota volume 31 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book The Geology of Minnesota volume 31
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They also resemble, perhaps even more, the trifid surface spicules ("Gabel-Anker'') of many lithistid sponges. The horizontal rays in the latter often are bifurcate close to the centre, so that even the duplex character of these rays in Anomalospongia is in a measure simulated. (See fig. \b and c. ) I am not prepared to decide definitely that these resemblances are or are not indica- tive of I'elationship. It seemed desirable, however, to mention the facts, since they illustrate the sense of th...e preceding paragraph.
As already indicated, it is my belief that the uncertain Amphispongia is related to A nomalospongia indeed, that the two might well be united in one family. That genus was proposed by Salter* for certain free, compressed, elongate-elliptical masses, rounded at both ends, and rarely more than 50 mm. Long by 18 mm. Wide, which *Mem. Gcol. Sur. Gt, Britain. 32. Scotland, p. 135, 1S61.
74 THE PALEONTOLOGY OF MINNESOTA.
LAnomalospongla occur in Silurian strata near Edinburg, Scotland.
What to read after The Geology of Minnesota volume 31?
You can find similar books in the "Read Also" column, or choose other free books by Geological And Natural History Survey of Minnesota to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
They also resemble, perhaps even more, the trifid surface spicules ("Gabel-Anker'') of many lithistid sponges. The horizontal rays in the latter often are bifurcate close to the centre, so that even the duplex character of these rays in Anomalospongia is in a measure simulated. (See fig. \b and c. ) I am not prepared to decide definitely that these resemblances are or are not indica- tive of I'elationship. It seemed desirable, however, to mention the facts, since they illustrate the sense of th...e preceding paragraph.
As already indicated, it is my belief that the uncertain Amphispongia is related to A nomalospongia indeed, that the two might well be united in one family. That genus was proposed by Salter* for certain free, compressed, elongate-elliptical masses, rounded at both ends, and rarely more than 50 mm. Long by 18 mm. Wide, which *Mem. Gcol. Sur. Gt, Britain. 32. Scotland, p. 135, 1S61.
74 THE PALEONTOLOGY OF MINNESOTA.
LAnomalospongla occur in Silurian strata near Edinburg, Scotland.
What to read after The Geology of Minnesota volume 31?
You can find similar books in the "Read Also" column, or choose other free books by Geological And Natural History Survey of Minnesota to read onlineMoreLess
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