This appears as blackish streaks in the ash-coloured marl, much resembling in form some plant. They frequently project above the surface, being a little more compact than the marl, though they are also calcareous; they lie in all possible directions, exhibiting sections sometimes at right angles to their axis, sometimes oblique, and sometimes longitudinal. Their stems appear to have been hollow, and they have some parts attached to them extremely thin, like leaves. I found nothing like bulbs or heads to these. They are also very extensively distributed, occurring at every place where I observed this stratum.
Page:Transactions of the Geological Society, 1st series, vol. 2.djvu/397
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Mr. Webster on some new Varieties of Fossil Alcyonia.
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