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Pleistocene Plant Fossils in and near La Selva Biological Station, Costa Rica 1
Author(s) -
Horn Sally P.,
Sanford Robert L.,
Dilcher David,
Lott Terry A.,
Renne Paul R.,
Wiemann Michael C.,
Cozadd Duane,
Vargas Orlando
Publication year - 2003
Publication title -
biotropica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.813
H-Index - 96
eISSN - 1744-7429
pISSN - 0006-3606
DOI - 10.1111/j.1744-7429.2003.tb00598.x
Subject(s) - radiocarbon dating , pleistocene , tephra , pollen , geology , ecological succession , paleontology , physical geography , geography , ecology , volcano , biology
Radiocarbon dating and 40 Ar/ 39 Ar analysis of overlying tephra indicate that plant fossil assemblages exposed by stream erosion and well construction in and near La Selva Biological Station in eastern lowland Costa Rica are Pleistocene in age. We identified plant taxa based on wood, leaves, fruits, seeds, pollen, and spores examined from three sites at ca 30 m elevation. Extrapolating from modern ranges and surface temperature lapse rates suggests paleotemperatures 2.5–3.1°C cooler than at present