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I.—On Some Fossil Ostracoda from S.-W. Wyoming, and from Utah, U.S.A.

Published online by Cambridge University Press:  01 May 2009

T. Rupert Jones
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Extract

In 1885 Dr. C. A. White, F.C.G.S., Palæontologist to the U.S. Geological Survey, supplied me with some of the siliceous residue of a limestone belonging to the freshwater Jurassic Atlantosaurus-beds in Colorado, from which several casts of small Ostracoda were figured and described in the GEOLOGICAL MAGAZINE, Dec. III. Vol. III. April, 1886, pp. 145–8, Pl. IV. Since that time Dr. White has kindly sent me somewhat similar material, obtained in like manner, by dissolving in dilute acid pieces of an impure limestone, which lies at the base of the Upper Cretaceous Series, from Cokeville, a hamlet in South-Western Wyoming, and belongs to the Bear-River Formation. The Ostracoda selected are figured in Plate XV. Figs. 1–9, 11–13, and 15. These casts represent the whole carapace in many if not all instances.

Type
Original Articles
Information
Geological Magazine , Volume 10 , Issue 9 , September 1893 , pp. 385 - 391
Copyright
Copyright © Cambridge University Press 1893

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References

page 385 note 1 Also noticed in the “Bulletin U.S. Geol. Survey,” No. 29, May, 1889.

page 387 note 1 GEOL. MAG. 1886, p. 147, Pl. IV. Figs. 6a, b, c.Google Scholar

page 387 note 2 A more or less perfect furrow marks the valves in some species of Cypris, Limnieythere, Cytheridea, Cythere, Cytheropteron, Bythocythere, Cytherella, Cypridina. In the foregoing the sulcus is often rare and always irregular; but it holds good, however, more definitely as a generic character in the Palæozoic Entonus and Entomidella, although partially shown in some contemporary genera, especially Primitia.

page 387 note 3 Mem. Geol. Surv., Isle of “Wight, 2nd edit., by Reid, and Strahan, , 1889, p. 150.Google Scholar

page 388 note 1 Magaz. Ges. nat. Freunde zu Berlin, II. Quartal, 1808, p. 86, pl. iii. figs. 19, 20;Google Scholar also Brady, , Trans. Linn. Soc. 1868, p. 362, pl. xxiii. figs. 16–22.Google Scholar

page 388 note 2 See Trans. R. Dubl. Soc. n.s. vol. iv. 1889, p. 123, pl. xiv. figs. 3–12, for latest notice, by Brady, and Norman, .Google Scholar

page 389 note 1 Cypris conculeata, Jones, , Q. J. G. S., vol. xvi. 1866, p. 266, fig. 3, is not a Metacypris for certain.Google Scholar

page 390 note 1 Monogr. Post-Tert. Entom., Pal. Soc., and more lately treated of by Brady, and Norman, in Trans. Dublin, E. Soc., n.s., vol. iv. 1889, p. 145, pl. xiv. figs. 25–27; and pl. xviii. figs. 25 and 26.Google Scholar

page 390 note 2 Quart Journ. Geol. Soc. vol. xli. 1885, p. 357, pl. viii. figs. 1–8.Google Scholar