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XV.—On Rhamphodopsis, a Ptyctodont from the Middle Old Red Sandstone of Scotland

Published online by Cambridge University Press:  06 July 2012

D. M. S. Watson
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Extract

In 1858 C. H. Pander described as Ptydodus a number of teeth from Upper Devonian limestones in Russia. His admirable figures of complete teeth and of sections through them established the very chimæroid structure of these bodies. Since that time similar teeth have been repeatedly described, and have served for the establishment of three genera and many species from rocks of Middle and Upper Devonian age.

Type
Research Article
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 59 , Issue 2 , 1938 , pp. 397 - 410
Copyright
Copyright © Royal Society of Edinburgh 1938

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References

References to Literature

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