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I.—Hapalocrinus Victoriæ, N.S., Silurian, Melbourne, and its Relation to the Platycrinidæ

Published online by Cambridge University Press:  01 May 2009

F. A. Bather
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Extract

The specimen herein described was sent me by Mr. T. S. Hall, M.A., of Melbourne University. It was found by Mr. F. P. Spry in a rock of supposed Silurian age, at the Yarra Improvement Works, near Prince's Bridge, Melbourne, in November, 1896. The matrix is a fine-grained micaceous sandstone, of a dark purplegrey, weathering yellowish. It often contains crinoid columnals, such as were long ago noticed by the Geological Survey of Victoria, and were figured by W. Blandowski as “Cyatocrinites (probably)pinnatus”; but neither from here, nor from any other Silurian rock of Australia, has a crinoid crown hitherto been recoi-ded. The remains of the crinoid are in the form of an impression, coloured red by iron-oxide; all calcareous matter has been dissolved away. The counterpart of the impression has not been preserved. The specimen was studied by means of wax squeezes; the drawing (Plate XV) represents such a squeeze; and the description follows the drawing.

Type
Original Articles
Information
Geological Magazine , Volume 4 , Issue 8 , August 1897 , pp. 337 - 345
Copyright
Copyright © Cambridge University Press 1897

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References

page 337 note 1 Selwyn, A. E. C., “On the Geology of the Gold-fields, etc.”: Quart. Journ. Geol. Soc., xiv, 633–8, 1858.Google Scholar

page 337 note 2 “A Description of Fossil Animalcule in Primitive Bocks from the Upper Yarra District”: Trans. Phil. Soc. Victoria, i, 221–3, with plate, ISoo. See figs. 309–14 and 361.Google Scholar

page 337 note 3 Hapalocriuus Victoriæ, from a wax squeeze of the unique type-specimen, X 5 diameters. Owing to the imperfection ol the specimen, every single line in this cannot he vouched for; but the general relations and the details in the immediate neighbourhood of the calyx are believed to be correctly represented.

page 341 note 1 Müller, in Zeiler, und Wirtgen, “Bemerk. ueber d. Petrefacten, etc.’: Verh. naturhist. Ver. preuss. Rheinl., Jahrg. xii, p. 21. (Bonn, 1855.)Google Scholar

page 341 note 2 In Nicholson, and Lydekker, , “Manual of Palæontology,” i, 428, 1889.Google Scholar

page 342 note 1 Srenska, K. Vetenskaps-Akad. Handl., Bd. XXV, NO. 2. (Stockholm, 1893.)Google Scholar

page 344 note 1 ‘tender,’ like roast sucking-pig or the cheeks of a maid, also delicate in health. The extreme appropriateness of the name must excuse its close resemblance to Haplcrinus of the same geological age, as well as to Haplocrinus, with which it is associated by its author.