Research NewsPaleontology

Unscrambling Time in the Fossil Record

Science  13 Dec 1996:
Vol. 274, Issue 5294, pp. 1842
DOI: 10.1126/science.274.5294.1842


Geochronologist Glenn Goodfriend and paleontologist Stephen Jay Gould report on page 1894 how they used a combination of two dating techniques to extract a 15,000-year-long record of one campaign in a land snail's long and ultimately successful battle to win the Bahamian island of Great Inagua from a native species. This fossil record revealed a surprisingly prolonged intermingling of an invading species and its eventual victim.