The Puerto Viejo Pleistocene megafossil flora presented here is based on fossil leaves, fruits, and seeds from the banks of Río Puerto Viejo, Costa Rica. Eleven types of plant megafossils are described in this study, including Laurophyllum, Oxandra, Piperites, Ingeae, Parinari, Sacoglottis, Byrsonima, and Pouteria. Detailed morphological and anatomical data are provided for each taxon. Although the Puerto Viejo site is situated in the Atlantic Lowland Tropical Wet Forest today, the fossil flora suggests a relationship with nearby modern forests at slightly higher elevation, and cooler paleotemperatures than at present.
KEY WORDS: Pleistocene; Costa Rica; fossil plants; cuticle; anatomy
PE Article Number: 14.1.5A
Copyright: Palaeontological Association March 2011
Submission: 19 May 2010. Acceptance: 8 December 2010