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III.—On Climaxodus, or Pœcilodus; a Palatal Tooth from the Low Main Coal-Shale, Northumberland

Published online by Cambridge University Press:  01 May 2009

T. P. Barkas
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Extract

In the course of my recent investigations among the fauna of the Low Main Coal-shale in the county of Northumberland, which lies at an average depth of about 100 fathoms from the surface, I have found among numerous fish and reptilian remains three specimens of teeth that present the appearance of being vomerine in their nature. The tooth here represented in the woodcut, of the natural size resembles exactly in size and form another specimen which I have in my possession, the view exposed being the front aspect of the tooth. I have a third specimen, which exhibits the upper or attached part of the tooth; it has a sharp curved appearance, not unlike the back of a well-written letter S.

Type
Original Articles
Information
Geological Magazine , Volume 5 , Issue 53 , November 1868 , pp. 495 - 497
Copyright
Copyright © Cambridge University Press 1868

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References

page 495 note 1 P. angustus, P. Jonesii, P. obliquus, P. parallelus, P. sublævis, P. Iransversus.

page 495 note 2 Certain teeth from the Carboniferous shale of Carluke, in the British Museum, have been named Pœcilodus obliquus, Agassiz.

page 496 note 1 May not these equilateral teeth have been the vomerine, and the oblique teeth, called Pœcilodus, have belonged respectively to the right and left rami of the lower jaw of the same fish, their structure and general similarity of form being the same?— ED. Geol. Mag.