Hostname: page-component-848d4c4894-wg55d Total loading time: 0 Render date: 2024-05-09T16:40:16.411Z Has data issue: false hasContentIssue false
  • English
  • Français

I.—On some Fossil Entomostraca from South America

Published online by Cambridge University Press:  01 May 2009

T. Rupert Jones
Get access Rights & Permissions [Opens in a new window]

Extract

Valves subcircular, approaching subquadrate, like some small Lamellibranchs. Umbo at the antero-dorsal corner, and at aa angle of 40° to the extreme curvature of the concentric ridgelets. Hinge-line straight, behind the umbo, about half the length of the longest diameter of the valve. The other edges rounded; the anterior nearly semicircular; the ventral obliquely curving up to meet the steeper and narrower posterior curve.

Type
Original Articles
Information
Geological Magazine , Volume 4 , Issue 7 , July 1897 , pp. 289 - 293
Copyright
Copyright © Cambridge University Press 1897

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

page 290 note 1 Mém. Com. Géol. (St. Petersburg), vol. vi, 1888, pp. 469 and 556 Google Scholar, pl. ii, fig. 26. See also Brit. Assoo. Report for 1889, p. 66.Google Scholar

page 291 note 1 Proc. Zool. Soc., Annulosa, , 1849, p. 89, pl. xi, fig. 5.Google Scholar

page 291 note 2 Ibid., 1849, p. 90, pl. xi, flg. 7; and 1860, p. 188.

page 291 note 3 “Monogr. Foss. Esth.,” 1862, p. 103, etc., pl. iii, figs. 18–29Google Scholar; and GEOLOGICAL MAGAZINE, 1890, p. 389, Pl. XII, Figs. 1, 2.Google Scholar

page 291 note 4 “Monogr. Foss. Esth.,” 1862, p. 189 Google Scholar, etc., pl. ii, fig. 37; and GEOLOGICAL MAGAZINE, 1890, p. 387.Google Scholar