V 
ON THE STAGONOLEPIS ROBERTSONI (AGASSIZ) OF 
THE ELGIN SANDSTONES; AND ON THE RE- 
CENTLY DISCOVERED FOOTMARKS IN THE 
SANDSTONES OF CUMMINGSTONE. 
Quarterly Journal of the Geological Society, vol. xv. 1859, pp. 440-460. 
PLATE NIV. [PLATE 6]. 
‘CONTENTS :—Introduction—Dermal Scutes of Stagonolepis—Dermal Scutes of Recent Cro- 
codilia—Dermal Scutes of Fossil Crocodilia and Teleosauria—Comparison of the Scutes 
of Stagonolepis with those of Crocodilia and Teleosauria—Bones of Stagonolepis— 
Affinities of Stagonolepis—Footprints—Note (Postscript). 
Lntroduction—In establishing the genus Stagonolepis Professor 
Agassiz remarks'—“I have founded this genus upon a slab on 
which the impression of many series of great rhomboidal scales, 
arranged in the same way as those of the Lepzdostezde, is observable. 
The angular form of these impressions allows of no doubt that the 
fish whence they proceeded was a great ganoid similar to MM/ega- 
lichthys. The absence of the fins, of the head, and of the teeth, how- 
ever, renders the exact determination of the family to which the 
fossil belongs impossible. I arrange it provisionally in the neigh- 
bourhood of the genus G/yptopomus, to which it presents some 
analogy in the ornamentation of its scales.” 
Professor Agassiz goes on to say, in a subsequent paragraph, that 
the fossil came from the Upper Old Red at Lossiemouth; that he 
had not himself seen the original, and that he was acquainted with 
it only through Mr, Robertson’s drawings. 
Stagonolepis has remained ranged among the fishes in all the 
works on Geology and Paleontology which have been published 
since the appearance of the ‘Monographie. Sir C. Lyell, however, 
1 Monographie des Poissons fossiles du vieux grés rouge, p. 139. 
