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Pickerill et al., 1993

Ichnology of the Palaeogene Richmond Formation of eastern Jamaica - the final chapter?

Pickerill, R. K., Donovan, S. K., Doyle, E. N., Dixon, H. L.
DOI
DOI10.4138/1990
Aasta1993
AjakiriAtlantic Geology
Köide29
Number1
Leheküljed61–67
Tüüpartikkel ajakirjas
Keelinglise
Id19533

Abstrakt

Previously unrecorded ichnotaxa from the Palaeogene Richmond Formation of eastern Jamaica, namely Cosmorhaphe cf. gracilis, Helminthoida crassa, Paleodictyonl isp. and Taenidium cameronensis, are described. The ichnotaxa are assigned to a previously defined deep-water Scolicia ichnocoenosis characteristic of turbiditic strata. The general exclusion of graphoglyptids in these strata is believed to reflect a combination of the relatively shallow- water depths in which the turbiditic strata accumulated, the abundant organic matter available for biological consumption, and the existence of fluctuating dysaerobic/anoxic and oxygenated conditions at, or immediately below, the sediment-water interface.

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