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Discussion of Jamaican Cenozoic ichnology: review and prospectus: (v. 50, pp. 364–382)
Author(s) -
Mitchell Simon F.,
Ramsook Ryan
Publication year - 2015
Publication title -
geological journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.721
H-Index - 54
eISSN - 1099-1034
pISSN - 0072-1050
DOI - 10.1002/gj.2675
Subject(s) - cenozoic , ichnology , geology , paleontology , graben , prospectus , biostratigraphy , mesozoic , trace fossil , structural basin , block (permutation group theory) , geometry , finance , economics , mathematics
We make two comments on the paper ‘Jamaican Cenozoic ichnology: review and prospectus’ by Donovan et al . (2015). Based on biostratigraphy and new radiometric dates, we recommend the separation of the Richmond Formation (deposited in the Wagwater Graben and onlapping onto the edges of the Clarendon Block and Blue Mountains Block) and the Moore Town Formation (deposited in the John Crow Mountain Graben) which are of early Eocene and early Paleocene age, respectively. The ichnofossils of the Scolicia ichnocoenesis are different in the two basins. We also point out that extensive borings recorded from the late Eocene Somerset Formation of the White Limestone Group most probably came from the late Oligocene Walderston Formation. Copyright © 2015 John Wiley & Sons, Ltd.