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II.—The ‘Trias’ of Moray

Published online by Cambridge University Press:  01 May 2009

D. M. S. Watson
D. M. S. Watson
Affiliation:
Beyer Fellow of the Manchester University.
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Extract

The Reptiliferous Sandstone of Moray first attracted attention in 1851, on the discovery in it by Patrick Duff of a skeleton of Telerpeton elyinense at Spynie. This was described by Mantell (17), but did not raise any doubts as to the age of the bed in which it was found, which was at that time universally regarded as Upper Old Red Sandstone. This opinion was not disturbed until Huxley showed that Stagonolepis Robertsoni, Ag., was a crocodilian, the allies of which were of Triassic age (9); when Huxley showed that Hyperodapedon occurred in the undoubted Trias of Coton End, near Warwick (11), the point was generally regarded as settled. Meanwhile some footprints had been found by Captain Brickenden (6) at Cummingstone, near Elgin, which were recognized by Huxley to be similar to those described by Sir William Jardine from Annandale. The discovery by C. Moore (19) that the well-known quarry at. Linksfield, formerly supposed to be in rocks of Wealden age, was really opened in beds of Rhætic age appeared to be a strong argument in favour of the Triassic age of the reptile-bearing beds. It had, however, already been shown by Hugh Miller (18) that this mass was really a boulder resting on an ice-scratched surface of the subjacent rocks, hence the evidence drawn from the occurrence of this mass is quite inconclusive. The discovery by Professor Judd (15) that a small patch of a rock identical in physical characters with the cherty rock of Stotfield existed on the north side of the Moray Firth, which was conformably covered by an unfossiliferous series of beds which graded up into the Lower Lias, afforded further evidence of the correctness of Huxley's conclusions as to the age of these beds.

Type
Original Articles
Information
Geological Magazine , Volume 6 , Issue 3 , March 1909 , pp. 102 - 107
Copyright
Copyright © Cambridge University Press 1909

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References

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