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XVII.—Some Specimens of Stenomyelon and Kalymma from the Calciferous Sandstone Series of Berwickshire*

Published online by Cambridge University Press:  06 July 2012

Albert G. Long
Albert G. Long
Affiliation:
Berwickshire High School, Duns.
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Synopsis

A Stem of Stenomyelon tuedianum Kidston is described with the base of a petiole of Kalymma tuediana Calder attached to it.

Two new species of Stenomyelon are described—Stenomyelon heterangioides, characterized by interspersed xylem parenchyma and mesarch protoxylem, and Stenomyelon primaevum distinguished by a solid tri-radiate protostele lacking parenchyma bands. The possible external features of Stenomyelon are compared with a compression of a Pteridosperm with large fronds.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 65 , Issue 17 , 1963 , pp. 435 - 447
Copyright
Copyright © Royal Society of Edinburgh 1963

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References

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