HILL: GEOLOGY OF JAMAICA. 121 
In 1863 the material collected by Barrett and mentioned by Wood- 
Ward, was reported upon by T. Rupert Jones.! Orbitoides are included 
N the list of Cretaceous fossils given by Etheridge,? and alleged to occur 
With Nerinza and Rudistes by Woodward? and Duncan and Wall 
Woodward 5 reported both Orbitoides and Nummuline from the 
à Hippurite limestone ” of Jamaica, which **is unlike that of any Eng- 
lish stratum, It abounds in small oval bodies related to the Tertiary 
Nummulites, and also contained Radiolites, Inocerami, a large Nerinea, 
‘nd an Actwonella resembling A. levis d'Orb.” Wo have not person- 
ally observed Orbitoides in the Jamaican Cretaceous rocks, although 
they abound in the Eocene, as will be shown on a later page. Creta- 
eous limestones from Costa Rica, described in our Panama Report, 
Show a mixture of remains very suggostive of the one described. The 
Occurrence of Orbitoides and Nummulites, which abound in the Eocene 
formation, is more fully discussed on later pages. 
Duncan asserted® that the corals were mostly European forms, “thé 
Majority have very decided facies, . . . suggestive of a close alliance 
of the great coral fauna of Gosau in the Eastern Alps,” while others 
Were alleged to be “common forms in the Kriedensmerle.” He also 
Stated” that “there is a community of species of corals between the 
9wer Chalk of Gosau and Piesting and the French Hippurite lime- 
Stone at Martigues, the Corbières, and Uchaux. . . . It is clearly this 
‘ssemblage of forms which is represented in Jamaica; and it is an in- 
teresting fact that the specimens from Gosau, Mount Hindmost, and 
"out Hall present the same mineral aspect; in fact, the Specimens 
are barely to be distinguished.” Vaughan, who has recently re-examined 
Unean's collections, does not agree with his conclusions, and states that 
they have no affinities with the Gosau forms. The Gosau (Cretaceous) 
orms are Senonian, and do not belong to the lower horizon to which 
"nean referred them, Furthermore, two of the species mentioned by 
"Uncan from Trout Hall and U pper Clarendon, Diploria crassolamel- 
losa, Duncan (non Edwards and Haime) = Diploria conferticostata, 
Wughan, and Meliastræa exsculpta, Duncan (non Reuss) = Multicolum- 
1 Quart. Jour. Geol. Soc. London, 1863, Vol. XIX. p. 514, 
? Jamaican Reports, p. 310. 
3 “The Geologist,” Vol. V. p. 378. 
2 Quart. Jour. Geol. Soc. London, 1805, Vol. XXI. p. 2. 
5 8. P. Woodward, in the Geologist, London, 1862, Vol. V. p. 978. 
5 Quart. Jour. Geol. Soc. London, 1865, Vol. XXI. p. 11. 
“IÓ, Pp 10 
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