363 
Guppy Reprint 
115 
Page 2^9 
Oct., 1874,) a further account of the West Indian tertiary fossils 
with a list of all the species of invertebrates(except corals) known 
up to that time from the tertiary rocks of the West Indies, leav- 
ing out the most recent formations whose fossils are all or nearly 
all of living species. Since then some other fossils have been 
described b}^ the late professor W. M. Gabb* and by myself ; t 
but until the late discussion arose on the microzoic rocks of 
Trinidad and Barbados the only name to be added to the list of 
forty-four foraminifera recorded from six West Indian localities 
was Tinoporus pilaris Brady, a fossil from Jamaica, Cumana and 
other places. 
The gradual accumulation of evidence on the subject of the 
relative age of the West Indian geological formations led to the 
conclusion that the fossiliferous beds of Naparima and Manzanila 
in Trinidad ought to be separated from the Miocene depo.sits of 
Haiti, Jamaica and Cumana as of distinctly older date and con- 
taining a decidedly different fauna. Consequently in my paper 
of 1874 just quoted the name Eocene is used for the.se older 
beds.J There still remains in Trinidad a considerable series of 
formations (the Caroni .series) having fossils similar to those of 
the raiocene beds of Haiti, Jamaica and Cumana. 
In my paper published in the ‘ ‘proceedings of the Scientific 
Association of Trinidad” for December, 1877, I gave a diagram to 
show the general succe.ssion of the Rocks of Trinidad. According 
to that diagram and the explanation thereof the rock-formations 
of Trinidad are in ascending order as follows : — 
{abed) Caribean group (paleozoic) 
{e) Compact Limestone (Devonian?) 
(/') Secondary rocks (Cretaceous) 
(g) Eocene of Naparima (including the foraminifera-beds) 
(g) Eocene of Manzanilla. 
(A) Miocene of Guaracara (Nariva Series) 
(/i') Miocene of South Naparima (including the Radio- 
larian Marls) 
(/i") Miocene of Savaneta, Point Noir &c. (Caroni series) 
(li'") Miocene and Pliocene (probably the latter in most 
part ' of Moruga, Mayaro, &c. 
(i) Postpliocene (including the ‘‘Detrital Series) 
Though the diagram was very rough and susceptible of much 
*Trans. Amer. Phil. Soc. vol. xv. p. 49, and Proc. Acad. Nat. Sci. 
Phil. 1872 p. 270. 
tQuart. Journ. Geol. Soc. vol. xxxii 1876 p. 516. 
{On this point see Cleve, Kongl. Svenska Vetenskaps-Akad. Handl. 
Band ix No. 12 (1871), and Annals New York Academy of Science vol. ii 
{1881) p. iqo ; also Cotteau on West Indian Fossil Echinoderms, Kongl. 
Svenska Vetenskaps-Akad. Handl. Band, xiii. No. 6, (1875). 
