File:The Quarterly journal of the Geological Society of London (13365162133).jpg

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1849..
BROWN ON THE SYDNEY COAL-FIELD.
131
n. A long interval now follows without any erect trees, the next
in order being Calamites without roots in the sandstone No. 299,
which is 735 feet above the Main Coal No. 188.
o. Six feet only above the sandstone last mentioned, a fine erect
Sigillaria occurs, based upon the surface of the argillaceous shale
No. 302, and extending ten feet upwards into the superincumbent
beds. At the height of three feet from the base it is bent over
nearly into a horizontal position, the length of the inclined portion
Fig. 8.
being two feet ; it then resumes its upright position, which it main-
tains to the top, terminating under the mixed coal and shale No. 306.
The diameter at the top is 1 5 inches, and at one foot from the base
24 inches. It is furrowed throughout the whole length, but leaf-
scars are visible only in the upper portion. Two large roots pro-
ceed from the base, but no rootlets or resemblance to Stigmaria can
be found.
Prostrate plants and Stigmarise are found in some of the beds above
the shale No. 302, as high up as the top of the sandstone No. 3 1 ; but
above this sandstone not the trace of a plant of any description can
be found until we arrive at the argillaceous shale No. 344, 217 feet
above the last upright tree. This shale No. 344 is the commence-
ment of a series of beds exceedingly rich in both prostrate plants and
erect trees, which terminate only with the highest bed in our section
at Cranberry Head. I have endeavoured to show the position of all
the upright trees at one view in the annexed sketch (Fig. 9), the lower
portion being visible in the south-eastern face of the cliff, and the
upper round the angle of the headland, where the coast-line runs
nearly in the direction of the strike of the strata : this will explain
why the beds dip so rapidly in one part, and appear nearly horizontal

in the other part of the sketch.
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Source https://www.flickr.com/photos/biodivlibrary/13365162133
Author Geological Society of London
Full title
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The Quarterly journal of the Geological Society of London.
Page ID
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36933956
Item ID
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113689 (Find related Wikimedia Commons images)
Title ID
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51125
Page numbers
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Page 131
Names
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NameFound:Calamites NameConfirmed:Calamites EOLID:13132177 NameBankID:4098476 NameFound:Sigillaria NameConfirmed:Sigillaria EOLID:13132168 NameBankID:4343184 NameFound:Stigmaria NameConfirmed:Stigmaria EOLID:6133541 NameBankID:4853119
BHL Page URL
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https://www.biodiversitylibrary.org/page/36933956
Page type
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Text
Flickr sets
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  • The Quarterly journal of the Geological Society of London. v. 6 (1850).
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Flickr posted date
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23 March 2014
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This file comes from the Biodiversity Heritage Library.

This tag does not indicate the copyright status of the attached work. A normal copyright tag is still required. See Commons:Licensing.

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26 August 2015

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current11:10, 26 August 2015Thumbnail for version as of 11:10, 26 August 20151,239 × 2,073 (692 KB)Fæ (talk | contribs)== {{int:filedesc}} == {{BHL | title = The Quarterly journal of the Geological Society of London. | source = http://www.flickr.com/photos/biodivlibrary/13365162133 | description = 1849.. <br> BROWN ON THE SYDNEY COAL-FIELD. <br> 131 <br> n. A long inte...

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