Hymenaea protera

Hymenaea protera is an extinct prehistoric leguminous tree, the probable ancestor of present-day Hymenaea species. Most neotropical ambers come from its fossilized resin, including the famous Dominican amber.

Hymenaea protera Temporal range: Eocene PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Plantae
(unranked):	Angiosperms
(unranked):	Eudicots
(unranked):	Rosids
Order:	Fabales
Family:	Fabaceae
Genus:	Hymenaea
Species:	†H. protera
Binomial name
Hymenaea protera Poinar

H. protera once grew in an extensive range stretching from southern Mexico down to the Proto-greater Antilles, across northern South America, and on to the African continent. Both morphology and DNA studies have revealed that H. protera was more closely related to the only species of Hymenaea remaining in East Africa than to the more numerous American species.

In 1993, chloroplast DNA dated at 35-40 million years old was extracted from the leaf of H. protera, preserved in a fossil amber from the La Toca mines, Dominican Republic.

References

• Briggs, Dered E. G. & Crowther, Peter R. (Eds.). (2003). Palaeobiology II. Blackwell Science. ISBN 0-632-05149-3.
• Willis, K. J. & McElwain, J. C. (2002). The Evolution of Plants. Oxford: Oxford University Press. ISBN 0-19-850065-3.

External links

• Data related to Hymenaea protera at Wikispecies