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I.—On the Rostral Prolongations of Squaloraia polyspondyla, Ag.

Published online by Cambridge University Press:  01 May 2009

William Davies
William Davies*
Affiliation:
British Museum
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Extract

Few amongst the many remains of Fossil Fishes hitherto discovered have excited more interest than the remarkable fossil Ray, found about forty years ago by Miss Anning in the Lower Lias at Lyme Regis.

Type
Original Articles
Information
Geological Magazine , Volume 9 , Issue 94 , April 1872 , pp. 145 - 150
Copyright
Copyright © Cambridge University Press 1872

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References

page 145 note 1 Geol. Trans., 2nd ser., vol. v., p. 83.

page 145 note 2 Rech. Poiss. Foss., tom. iii., p. 384, tab. 42, 43.

page 146 note 1 Geol. Trans., 2nd ser., vol. v., p. 84.

page 146 note 2 Rech. Poiss. Foss., tom. iii., p. 379.

page 149 note 1 It is an interesting fact in connexion with our subject, that Squaloraia and a Chimœroid species (Ischyodus orthorhinus, Egert.), in which this organ attained its maximum development, were contemporaries, both being found in the same Lias deposit at Lyme Regis. See a Paper on a “New Chimæroid Fish,” by Sir Philip Egerton, Quart. Journ. Geol. Soc, vol. xxvii., p. 275, pl. xiii.

page 150 note 1 In the Upper Oolite, or Lithographic Stone of Solenhofen, and elsewhere, remains of many species of Rays are found, some of large size, in which the fin-rays and the dermal covering are perfectly conserved. There is in the British Museum an example of a small species (Squatina speciosa, v. Mey.) from the above locality, in which these parts are beautifully preserved. They are also found in a nearly equal state of preservation in a fissile limestone of Cretaceous age in the Lebanon; and of which there are some good examples in the collection.