Abstract
In the latest of a series of comments on Donovan’s research papers on the geology of Jamaica, Mitchell disagrees with van den Ende and Donovan’s lithostratigraphic assignment of the Thornton echinoid site, and the model used for interpreting the palaeogeography and palaeoecology of the Yellow Limestone Group. The first point is considered trivial; the Guys Hill Member was formerly included within the Chapelton Formation, and both are in the Yellow Limestone Group (mid-Lower to mid-Middle Eocene). Mitchell’s hitherto unpublished data provides supporting evidence for the determination of Miller and Donovan, made almost 20 years ago, and reconsidered by van den Ende and Donovan, that clypeasteroids and oligopygoids rarely occur together in the Yellow Limestone Group. We consider the sequence stratigraphic interpretation of the Yellow Limestone Group to deserve further examination.
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