Hostname: page-component-848d4c4894-m9kch Total loading time: 0 Render date: 2024-06-09T06:23:09.612Z Has data issue: false hasContentIssue false
  • English
  • Français

On Some Tithonian Ammonites from the Northern Range of Trinidad, B.W.I.

Published online by Cambridge University Press:  01 May 2009

L. F. Spath
Get access Rights & Permissions [Opens in a new window]

Extract

Through the kind intervention of Dr. R. Rutsch, of Basle, who himself is interested chiefly in the Tertiary mollusca of Trinidad, I have recently been able to study some tolerably well-preserved ammonites from beds in the Northern Range which have long been the subject of discussion. The ammonites had been already recognized by the Trinidad geologists as Upper Jurassic and bore the provisional identification: “Idoceras sp.,” which would have indicated a Lower Kimmeridgian age; but since confirmation of this seemed desirable, I was asked to see whether the ammonites were determinable, and if so to publish a note on the results of my investigation.

Type
Original Articles
Information
Geological Magazine , Volume 76 , Issue 4 , April 1939 , pp. 187 - 189
Copyright
Copyright © Cambridge University Press 1939

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 188 note 1 See Zittel, , Cephalopoden der Stramberger Schichten. Pal. Mitteil., ii, pt. 1, 1868, 103, pl. xxii, figs. 1–6.Google Scholar

page 188 note 2 “Couches Tithoniques de l'Ardéche,” Bull. Soc. géol. France (III), xviii, 1890, 599, pl. xvi, figs. 5–6.Google Scholar

page 188 note 3 “Argentinische Jura-Ablagerungen,” Pal. Abh. N.S., iii, 1897, 158, pl. xxix, figs 6–7 (as Reineckeia transitoria).Google Scholar

page 188 note 4 “Fauna of the Spiti Shales,” Pal. Indica, xv (Himalayan Fossils), iv, fasc. 3, 1910, 347.Google Scholar

page 188 note 5 “Ammonites and Aptychi from Somaliland,” Monogr. Hunter. Mus. Glasgow, i, pt. vii, 1925, 143.Google Scholar

page 189 note 1 “Faunas Jurasicas de Symon (Zacatecas), etc.”, Bol. Inst. Geol. Mexico, No. 33, 1919–1921, p. 53, pl. xvii, figs. 1–9.Google Scholar

page 189 note 2 The Geology of Venezuela and Trinidad, 1928, p. 105.Google Scholar

page 189 note 3 Kugler, H. G., “Summary Digest of Geology of Trinidad,” Bull. Amer. Assoc. Petrol. Geol., xx, No. 11, 1936, 1439.Google Scholar

page 189 note 4 “The Northern Range of Trinidad,” Geol. Mag., LXII, 1925, 544–551.Google Scholar

page 189 note 5 “Fossils from the Northern Range of Trinidad,” Geol. Mao., LXXII, 1935, 166–175.Google Scholar

page 189 note 6 Trechmann, , Proc. Geol. Soc., 1937, pp. cxviii–cxix.Google Scholar