The Guinea Corn Formation is a geologic formation in Jamaica. It preserves fossils dating back to the Cretaceous period.
IUGS geological heritage site In respect of it being the 'most diverse and thickest limestone succession with abundant rudist bivalves within the Caribbean faunal province', the International Union of Geological Sciences (IUGS) included the 'Late Cretaceous rudist bivalves of the Caribbean Province' (Rio Minho, Clarendon parish) in its assemblage of 100 'geological heritage sites' around the world in a listing published in October 2022. The organisation defines an IUGS Geological Heritage Site as 'a key place with geological elements and/or processes of international scientific relevance, used as a reference, and/or with a substantial contribution to the development of geological sciences through history.'
Fossil content
Crustaceans Crustaceans of the Guinea Corn FormationGenusSpeciesLocationStratigraphic positionMaterialNotesImage Amphicytherura A. grandicribra Rio Minho, Jamaica Maastrichtian A schizocytherid ostracod Asciocythere A. cabbagehillensis Rio Minho, Jamaica Maastrichtian A cytherideid ostracod Aysegulina A. chapeltonensis Rio Minho, Jamaica Maastrichtian A hemicytherid ostracod A. riominhoensis A. sagitta A. ventrocurva Brachycythere B. jamaicaensis Rio Minho, Jamaica Maastrichtian A trachyleberidid ostracod Buntonia B. nana Rio Minho, Jamaica Maastrichtian A trachyleberidid ostracod B. vulgaris Cytherelloidea C. guineacornensis Rio Minho, Jamaica Maastrichtian A cytherellid ostracod Dinglecythere D. occulta Rio Minho, Jamaica Maastrichtian A schizocytherid ostracod Eocytheropteron E. hazeli Rio Minho, Jamaica Maastrichtian A cytherurid ostracod E. jamaicaensis Eucytherura E. mitchelli Rio Minho, Jamaica Maastrichtian A cytherurid ostracod Floricythereis F. exquisita Rio Minho, Jamaica Maatrichtian A trachyleberidid ostracod Hemiparacytheridea H. exquisita Rio Minho, Jamaica Maastrichtian A paracytherideid ostracod Leiocythereis L. polita Rio Minho, Jamaica Maastrichtian A trachyleberidid ostracod Loxoconcha L. pindarsensis Rio Minho, Jamaica Maastrichtian A loxoconchid ostracod Ovocytheridea O. rotunda Rio Minho, Jamaica Maastrichtian A cytherideid ostracod Phrixocythere P. unionensis Rio Minho, Jamaica Maastrichtian A hemicytherid ostracod Pterygocythereis P. babinoti Rio Minho, Jamaica Maastrichtian A trachyleberidid ostracod Schizoptocythere S. nana Rio Minho, Jamaica Maastrichtian A trachyleberidid ostracod S. pinna Schuleridea S. exigua Rio Minho, Jamaica Maastrichtian A cytherideid ostracod Spinicytheridea S. compta Rio Minho, Jamaica Maastrichtian A cytherideid ostracod
See also
List of fossiliferous stratigraphic units in Jamaica
References