Guinea Corn Formation

Guinea Corn Formation
Guinea Corn Formation
Stratigraphic range: Maastrichtian
Type	Formation
Location
Country	Jamaica

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.'^[1]

Fossil content

Color key

Taxon	Reclassified taxon	Taxon falsely reported as present	Dubious taxon or junior synonym	Ichnotaxon	Ootaxon	Morphotaxon

Notes
Uncertain or tentative taxa are in small text
~~crossed out~~ taxa are discredited.

Crustaceans

Crustaceans of the Guinea Corn Formation
Genus	Species	Location	Stratigraphic position	Material	Notes	Image
Amphicytherura^[2]	A. grandicribra	Rio Minho, Jamaica	Maastrichtian		A schizocytherid ostracod
Asciocythere^[2]	A. cabbagehillensis	Rio Minho, Jamaica	Maastrichtian		A cytherideid ostracod
Aysegulina^[2]	A. chapeltonensis	Rio Minho, Jamaica	Maastrichtian		A hemicytherid ostracod
	A. riominhoensis
	A. sagitta
	A. ventrocurva
Brachycythere^[2]	B. jamaicaensis	Rio Minho, Jamaica	Maastrichtian		A trachyleberidid ostracod
Buntonia^[2]	B. nana	Rio Minho, Jamaica	Maastrichtian		A trachyleberidid ostracod
Buntonia^[2]	B. vulgaris	Rio Minho, Jamaica	Maastrichtian		A trachyleberidid ostracod
Cytherelloidea^[2]	C. guineacornensis	Rio Minho, Jamaica	Maastrichtian		A cytherellid ostracod
Dinglecythere^[2]^[3]	D. occulta	Rio Minho, Jamaica	Maastrichtian		A schizocytherid ostracod
Eocytheropteron^[2]	E. hazeli	Rio Minho, Jamaica	Maastrichtian		A cytherurid ostracod
Eocytheropteron^[2]	E. jamaicaensis^[2]	Rio Minho, Jamaica	Maastrichtian		A cytherurid ostracod
Eucytherura^[2]	E. mitchelli	Rio Minho, Jamaica	Maastrichtian		A cytherurid ostracod
Floricythereis^[2]	F. exquisita	Rio Minho, Jamaica	Maatrichtian		A trachyleberidid ostracod
Hemiparacytheridea^[2]	H. exquisita	Rio Minho, Jamaica	Maastrichtian		A paracytherideid ostracod
Leiocythereis^[2]	L. polita	Rio Minho, Jamaica	Maastrichtian		A trachyleberidid ostracod
Loxoconcha^[2]	L. pindarsensis	Rio Minho, Jamaica	Maastrichtian		A loxoconchid ostracod
Ovocytheridea^[2]	O. rotunda	Rio Minho, Jamaica	Maastrichtian		A cytherideid ostracod
Phrixocythere^[2]	P. unionensis	Rio Minho, Jamaica	Maastrichtian		A hemicytherid ostracod
Pterygocythereis^[2]	P. babinoti	Rio Minho, Jamaica	Maastrichtian		A trachyleberidid ostracod
Schizoptocythere^[2]	S. nana	Rio Minho, Jamaica	Maastrichtian		A trachyleberidid ostracod
Schizoptocythere^[2]	S. pinna	Rio Minho, Jamaica	Maastrichtian		A trachyleberidid ostracod
Schuleridea^[2]	S. exigua	Rio Minho, Jamaica	Maastrichtian		A cytherideid ostracod
Spinicytheridea^[2]	S. compta	Rio Minho, Jamaica	Maastrichtian		A cytherideid ostracod

References

↑ "The First 100 IUGS Geological Heritage Sites" (PDF). IUGS International Commission on Geoheritage. IUGS. Retrieved 13 November 2022.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 T. Markham Puckett; Jean-Paul Colin; Simon Mitchell (2012). "New species and genera of Ostracoda from the Maastrichtian (Late Cretaceous) of Jamaica". Micropaleontology. 58 (5): 397–455. Bibcode:2012MiPal..58..397P. doi:10.47894/mpal.58.5.01. JSTOR 24413452. S2CID 249386052.
↑ Lucas Silveira Antonietto; Anna Abrahão; Dermeval Aparecido do Carmo; Ricardo Piazza Meireles (2013). "Taxonomy, biostratigraphy and paleozoogeography of Amphicytherura Butler and Jones, Aracajuia Krömmelbein and Dinglecythere Antonietto et al., n. gen. (Crustacea, Ostracoda)". Marine Micropaleontology. 105: 1–17. Bibcode:2013MarMP.105....1A. doi:10.1016/j.marmicro.2013.09.002.

Various Contributors to the Paleobiology Database. "Fossilworks: Gateway to the Paleobiology Database". Archived from the original on 25 March 2022. Retrieved 17 December 2021.

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[1] "The First 100 IUGS Geological Heritage Sites" (PDF). IUGS International Commission on Geoheritage. IUGS. Retrieved 13 November 2022.

[Micropaleontology585-2] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 T. Markham Puckett; Jean-Paul Colin; Simon Mitchell (2012). "New species and genera of Ostracoda from the Maastrichtian (Late Cretaceous) of Jamaica". Micropaleontology. 58 (5): 397–455. Bibcode:2012MiPal..58..397P. doi:10.47894/mpal.58.5.01. JSTOR 24413452. S2CID 249386052.

[3] Lucas Silveira Antonietto; Anna Abrahão; Dermeval Aparecido do Carmo; Ricardo Piazza Meireles (2013). "Taxonomy, biostratigraphy and paleozoogeography of Amphicytherura Butler and Jones, Aracajuia Krömmelbein and Dinglecythere Antonietto et al., n. gen. (Crustacea, Ostracoda)". Marine Micropaleontology. 105: 1–17. Bibcode:2013MarMP.105....1A. doi:10.1016/j.marmicro.2013.09.002.

[1]

[2]

[3]

IUGS geological heritage site

Fossil content

Crustaceans

See also

References