Table 4 in Taxonomy, phylogeny, and diversity of the extinct Lesser Antillean rice rats (Sigmodontinae: Oryzomyini), with description of a new genus and species

Table 4. Last-occurrence dates for extinct rice rats from the Windward and Leeward Islands, based on historical records or calibrated radiometric dates from archaeological or palaeontological horizons containing rice rat material
Archaeological or palaeontological recordSpeciesIslandHistorical recordSiteCalibrated radiometric date, 2sReferenceMegalomys audreyaeBarbudaDarby SinkAD 1173–1385MacPhee & Flemming (1999)Megalomys desmarestiiMartiniquec. 1897Allen (1942)Megalomys luciaeSt. Luciapre-1881Allen (1942)Oligoryzomys victusSt. Vincent1892Allen (1942)Pennatomys nivalis gen. et sp. nov.Nevis1720? (1930s?)Sulphur GhautAD 900–1200Newsom & Wing (2004); Wilson (2006)St. EustatiusGolden Rock80 BC–AD 980Schinkel (1992)St. Kitts1631?Bloody PointAD 660–1115J.E. Robb, pers. comm.Undescribed taxonAnguillaShoal Bay EastAD 940–1320Crock (2000)Undescribed taxon (? Megalomys audreyae or ‘ Ekbletomys hypenemus ’)AntiguaIndian CreekAD 900–1100Rouse & Morse (1999)Undescribed taxonBarbados1848?Schomburgk (1848), Ray (1962), Feilden (1890), Marsh (1984, 1985)Undescribed taxonCarriacouGrand BayAD 390–1280LeFebvre (2007); S.M. Fitzpatrick, pers. comm.(Grenadines)Undescribed taxon (large morph)GrenadaPearls37 BC–AD 533Haviser (1997)Undescribed taxon (small morph)GrenadaPearls37 BC–AD 533Haviser (1997)Undescribed taxonGuadeloupeMorelAD 21–881Haviser (1997)Undescribed taxonLa DesiradePetite RivièreAD 600–1400de Waal (1996)Undescribed taxonMarie GalanteTaliserondeAD 350–665Haviser (1997)Undescribed taxon (large morph)MontserratTrants774 BC–AD 622Petersen (1996)Undescribed taxon (small morph)MontserratTrants774 BC–AD 622Petersen (1996)Undescribed taxonSabaKelbey’s Ridge IIAD 1290–1400Hoogland (1996)Undescribed taxonSt. MartinHope EstateAD 255–650Newsom & Wing (2004)
Calibrated dates were calculated from conventional 14 C ages (years BP) for Megalomys audreyae and for undescribed taxa from Grenada, Guadeloupe, and Marie Galante using OxCal 4.0 (Bronk Ramsey, 1995, 2001). The calibrated date for M. audreyae is based on a direct radiocarbon date from subfossil rice rat material; all other radiometric last-occurrence dates are based on calibrated dates of stratigraphically associated material from archaeological sites.