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IV.—On some Fossil Entomostraca from South America

Published online by Cambridge University Press:  01 May 2009

T. Rupert Jones
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Extract

There are now in the British Museum (Natural History Branch) several specimens of fossil Estheriæ from South America, beside those described and figured in the “Monograph of Fossil Estheriæ” (Palæontographical Society), 1862, pp. 109–111, pi. iv, figs. 8–11.

1. There are some from the same locality as those already dealt with, namely, Estheria Forbesii, Jones, from Cacheuta in the province of Mendoza, Argentine Republic.

2. Others collected by David Forbes at another place, namely, Arica, Department of Arequipa, in Southern Peru.

3. An interesting series from Brazil; partly described and illustrated in the Geological Magazine for May, 1897, pp. 195–202, PI. VIII.

Type
Original Articles
Information
Geological Magazine , Volume 4 , Issue 6 , June 1897 , pp. 259 - 265
Copyright
Copyright © Cambridge University Press 1897

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References

page 259 note 1 Pls. X and XI will appear in the July Number with the second part of this paper.

page 260 note 1 Now held by the Chilians as an indemnity for war expenses, or taken by them in 1886.

page 260 note 2 Christiania Vidensk.-Selsk. Forhandl. 1887, No. 1.

page 260 note 3 Archiv Math, og Naturv. Atteude Bind, Förste Hefte, June, 1896, Kristiania. In this memoir on E. Packardi is given the complete history of the growth of an Estheria and its valves.

page 261 note 1 In his “Reise durch die La Plata Staaten,” etc., 2 vols., 1861, at page 277 of vol. iGoogle Scholar, H. Burmeister observed at some places “remnants of Cypridinen-Schalen, with the little Crustaceans characteristic of the Coal-formation of Europe.” In his “Description physique de la Republique Argentine,” 5 vols., 1876–1878, in vol. i (1876), p. 262Google Scholar, Burmeister states that “on the eastern side of the mountains, towards the plain of the Pampa, is a small ravine opening out above the Bath of Challao; and in it are some black, irregularly flaking shales, like the Coal-shales; and these contain here and there traces of carbonized leaves, and on other surfaces impressions of little shells, like the valves of Cypridina, that remarkable Crustacean genus, belonging to the Phyllopoda, near the genus Estheria, and so characteristic of the Coal-beds of Europe.” Burmeister here evidently alluded to the “Cypridinen-Schiefer” (Entomis-shales) characteristic of the Devonian (not the Carboniferous) of Europe from Russia to England.

page 262 note 1 Of the six specimens it is stated, at p. 16, that they came from Agua de la Zorra, Challao, Agua salada, Cerro de Cacheuta, and San Lorenzo.

page 263 note 1 The province of Mendoza, indicated by the name Mendocina, formerly belonging to Chili, and so referred to by Philippi, was previously known as Cuyo, and part of La Plata. It is now described by geographers as belonging to the Argentine Republic, the mutual boundary having been settled by a treaty in 1881. The limit passes along the crest of the Andes down to the Magellan Straits.

page 264 note 1 1887; see above, p. 262.