Fossils of the Yorkshire Lias Described From Nature
Fossils of the Yorkshire Lias Described From Nature
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In our eReader you can find the full English version of the book. Read Fossils of the Yorkshire Lias Described From Nature 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 Fossils of the Yorkshire Lias Described From Nature
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To quickly assess the difficulty of the text, read a short excerpt:
HUNTONI, Simp.
Much depressed ; volutions three or four, inner ones three-quarters concealed, outer whorl one- half the diameter, gradually thinning to the keel ; radii sigmoidal, obsolete ; with distant deep con- strictions ; aperture acutely triangular ; diameter six-tenths of an inch. L. L. , ?/, E. H. Bay.
This is easily confounded with the inner volutions of 120 A. Robinsoni, but it is more depressed, and the con- strictions are nearly straight. The shell is very thin, and faintly radiated... or striated.
148. A. ROBINSONI, Simp.
Volutions four, inner ones nearly concealed, outer whorl more than one-half the diameter, back rounded ; radii slightly waving, nearly obsolete ; keel blunt ; aperture acutely triangular or ovate ; diameter seven-tenths of an inch. L. L. , 13.
This beautiful little ammonite is from the lowest beds of Lias at Eobin Hood's Bay. The sides of the whorls are regularly convex, the inner margin is slightly ele- vated above the succeeding whorl; the keel is merely the thin edge of the back, which is rounded, but without the groove on each side, as occurs in A.
What to read after Fossils of the Yorkshire Lias Described From Nature?
You can find similar books in the "Read Also" column, or choose other free books by M Simpson to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
HUNTONI, Simp.
Much depressed ; volutions three or four, inner ones three-quarters concealed, outer whorl one- half the diameter, gradually thinning to the keel ; radii sigmoidal, obsolete ; with distant deep con- strictions ; aperture acutely triangular ; diameter six-tenths of an inch. L. L. , ?/, E. H. Bay.
This is easily confounded with the inner volutions of 120 A. Robinsoni, but it is more depressed, and the con- strictions are nearly straight. The shell is very thin, and faintly radiated... or striated.
148. A. ROBINSONI, Simp.
Volutions four, inner ones nearly concealed, outer whorl more than one-half the diameter, back rounded ; radii slightly waving, nearly obsolete ; keel blunt ; aperture acutely triangular or ovate ; diameter seven-tenths of an inch. L. L. , 13.
This beautiful little ammonite is from the lowest beds of Lias at Eobin Hood's Bay. The sides of the whorls are regularly convex, the inner margin is slightly ele- vated above the succeeding whorl; the keel is merely the thin edge of the back, which is rounded, but without the groove on each side, as occurs in A.
What to read after Fossils of the Yorkshire Lias Described From Nature?
You can find similar books in the "Read Also" column, or choose other free books by M Simpson to read onlineMoreLess
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