|
|
|
|
|
| Donovan, S.K.; Pickerill, R.K.. |
| James speculated that Paleogene ‘flysch-wildflysch’ deposits of the Caribbean region may all have a related genesis associated with one or more bolide impacts. The principal arguments used to promote this idea were: (1) that many successions may have been dated incorrectly and are actually related to the end Cretaceous (K/T) event and/or other bolide impacts; and (2) common olistostromes may have been transported by impact-related phenomena. The deposits discussed by James included the Richmond and Font Hill formations of Jamaica. The Richmond Formation of the Wagwater Belt is Paleogene, not Cretaceous, and olistostromic blocks are a common feature of the sedimentary succession of Jamaica. No extraterrestrial event need be invoked to support their... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Jamaica; Paleogene; Richmond Formation; Tectonics; K/T event; 38.10. |
| Ano: 2009 |
URL: http://www.repository.naturalis.nl/record/314209 |
| |
|
|
| Blissett, D.J.; Pickerill, R.K.. |
| Jamaica, the third largest of the Greater Antillean islands, exposes various lithological units that are dominated by Cenozoic carbonate rocks including those of the mid-Cenozoic White Limestone Group. This Group is comprised of six formations, the Troy, Swanswick, Somerset, Moneague, Montpelier and Pelleu Island formations. An uncommon but moderately diverse, poorly to moderately preserved softsediment ichnofauna is described herein from several of these, namely the Moneague, Montpelier and Pelleu Island formations, which have yielded 15 ichnogenera represented by 27 ichnospecies. These are: Bergaueria hemispherica? Crimes, Legg, Marcos & Arboleya; Chondrites furcatus Sternberg; Chondrites isp.; Circulichnus montanus Vialov; Dactyloidites ottoi... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Systematics; Burrows; West Indies; Jamaica; Cenozoic; Eocene-Miocene; 38.22. |
| Ano: 2004 |
URL: http://www.repository.naturalis.nl/record/214519 |
| |
|
|
| Blissett, D.J.; Pickerill, R.K.. |
| The Middle Eocene to Middle Miocene White Limestone Group of Jamaica contains a common and diverse, poorly to well-preserved microboring ichnofauna, namely Centrichnus eccentricus Bromley & Martinell, Curvichnus pediformis isp. nov., Dendrorete balani Tavernier, Campbell & Golubic, Dipatulichnus rotundus Nielsen & Nielsen, Entobia volzi Bromley & D’Alessandro, Entobia isp. cf. E. ovula Bromley & D’Alessandro, Entobia isp. forms A and B, Fossichnus solus Nielsen, Nielsen & Bromley, Maeandropolydora elegans Bromley & D’Alessandro, Maeandropolydora sulcans Voigt, Oichnus asperus Nielsen & Nielsen, Oichnus excavatus Donovan & Jagt, Oichnus gradatus Nielsen & Nielsen, Oichnus ovalis Bromley, Oichnus paraboloides Bromley,... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Ichnotaxonomy; Microborings; Jamaica; West Indies; Eocene; Oligocene; Miocene; 38.20. |
| Ano: 2007 |
URL: http://www.repository.naturalis.nl/record/217416 |
| |
|
|
| Pickerill, R.K.; Donovan, S.K.; Portell, R.W.. |
| The ichnotaxon Teredolites Leymerie, 1842, represented by T. longissimus Kelly & Bromley, 1984, is documented for the first time from the Lesser Antilles. Its occurrence also represents the first record of the ichnotaxon from the Miocene of the Caribbean. Five specimens, each occurring in isolation without an enclosing xylic (wood) substrate, but merely calcite-lined tubes, occur in the Miocene Grand Bay Formation of Carriacou, the Grenadines, Lesser Antilles. Stratinomic considerations suggest that following physical destruction or biological decomposition of their enclosing substrate(s), the tubes may have accumulated in relatively shallow water only to be subsequently resedimented into a deeperwater (> 150 m) environment. |
| Tipo: Article / Letter to the editor |
Palavras-chave: Teredolites; Ichnology; Miocene; Lesser Antilles; Systematics; 42.71; 38.22. |
| Ano: 2003 |
URL: http://www.repository.naturalis.nl/record/219214 |
| |
|
|
|
