Proceedings of the Natural History Society of Dublin Volume 4, PT. 1
This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1864 edition. Excerpt: ...That these fossils, judging from the almost absolute identity of one of them with the polypidom of a living Sertularian type, are more probably the polypidoms of extinct Hydrozoa than Ccenaecia of Polyzoa; and that, judging from their state of preservation, their mode of occurrence in enormous masses, and the nature of the rocks in which they occur, they were originally the inhabitants of a comparatively still sea, and deposited by a gentle current on the shores of a shallow sandy bay."--"Transactions of the Royal Irish Academy," vol. xiii., p. 561. As the search after one truth, if patiently and accurately followed, will ever be certain to lead to the discovery of others, Dr. Kinahan brought to light the fact of the occurrence of Annelidan tracks, and the burrows of sea worms in connexion with the Sertularian remains which we have just described. In one instance he discovered the curved burrow of the worm, with its funnel-shaped orifice beautifully indented by the impression of the radiating tentacula of the animal, and this in a bed of hard greenish close-grained grit, as unlikely a looking rock in which to find a fossil as it was possible to imagine. We have an account and illustration of this most singularly interesting Annelid in the " Journal of the Geological Society of Dublin," vol. vii., p. 184, plate V., and the following brief notice of this discovery in the Royal Irish Academy Museum, before alluded to. He then says: --" The beds in which the fossils of both species occur ( 0. antiqua and radiata) are remarkable for being permeated by those long rounded fossils to which I drew attention in a paper read before the Geological Society of Dublin, in November 6th, 1856, and subsequently described more...
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- 13 Sep 2013
- Illustrations, black and white