The cretaceous succession in Jamaica
By: Chubb, L.J
.
Material type: 
ArticleDescription: 177-195p ; Illustration.Subject(s): Historical geology - Jamaica | Paleontology - Jamaica | Cretaceous - Jamaica
In:
Geological magazine : Vol. 92 Iss. 1-6 Year. 1955Summary: Abstract
There are wide divergencies between the views of different authors as to the correlation of the Jamaican Cretaceous rocks, the extreme views being (a) that the range covered is Albian to Turonian, and (b) that the rocks are mainly or wholly Maestrichtian in age.
An examination of all known occurrences of the rudist genera Barrettia and Titanosarcolites in the Antillean and Central American area suggests that the oft-repeated statement that these two genera occur in association is erroneous. In Jamaica the Barrettia Limestone lies at least 2,500 ft. below the Titanosarcolites Limestone.
Six palaeontological zones may be recognized in the Cretaceous of Jamaica, each containing its own peculiar assemblage of fossils, and with very few species common to two zones. Evidence is brought forward that only the highest part, comprising the uppermost two zones, should be included in the Maestrichtian, that the underlying shale is Campanian, that the Barrettia Limestone and associated shales are Turonian, and that the lowest zone at present known is Cenomanian.
| Item type | Current location | Collection | Call number | Status | Date due | Barcode |
|---|---|---|---|---|---|---|
Article
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Library and Information Centre Periodical Section | Bound Journal Collection | Not for loan | 002543_28 | ||
Serials/Scientific Journal
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Library and Information Centre Periodical Section | Bound Journal Collection | 550 GEO (Browse shelf) | Available | 002543 |
Abstract
There are wide divergencies between the views of different authors as to the correlation of the Jamaican Cretaceous rocks, the extreme views being (a) that the range covered is Albian to Turonian, and (b) that the rocks are mainly or wholly Maestrichtian in age.
An examination of all known occurrences of the rudist genera Barrettia and Titanosarcolites in the Antillean and Central American area suggests that the oft-repeated statement that these two genera occur in association is erroneous. In Jamaica the Barrettia Limestone lies at least 2,500 ft. below the Titanosarcolites Limestone.
Six palaeontological zones may be recognized in the Cretaceous of Jamaica, each containing its own peculiar assemblage of fossils, and with very few species common to two zones. Evidence is brought forward that only the highest part, comprising the uppermost two zones, should be included in the Maestrichtian, that the underlying shale is Campanian, that the Barrettia Limestone and associated shales are Turonian, and that the lowest zone at present known is Cenomanian.
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