Home

Article Search

FIGURE 1. Locations of the 179 modern ecoregions (colored areas) and the five fossil localities (stars) used in this study. Ecoregions are overlain on a grayscale global mean annual precipitation (MAP) map derived from Fick and Hijmans (2017), with lighter regions indicating areas of higher MAP and darker regions indicating areas of lower MAP. Abbreviations: LV, La Venta, Colombia; QH, Quebrada Honda, Bolivia; RU, Rümikon, Switzerland; SC, Santa Cruz, Argentina; TG, Tinguiririca, Chile.

 figure1a

 

 

 

FIGURE 2. Axes one and two of the correspondence analysis. A) Positions of the fossil localities and 179 modern ecoregions; B) Positions of the 22 variables. Note that the scale is not the same in the two graphs.

 figure2

 

 

 

FIGURE 3. Axes three and four of the correspondence analysis. A) Positions of the fossil localities and 179 modern ecoregions; B) Positions of the 22 variables. Note that the scale is not the same in the two graphs.

figure3 

 

 

 

FIGURE 4. Linear regression of MAP on correspondence axis 1 (CA1) score; estimated MAP for each of fossil locality based on CA1 score is indicated. Abbreviations: LV, La Venta; QH, Quebrada Honda; RU, Rümikon; SC, Santa Cruz; TG, Tinguiririca.

 figure4

 

 

 

FIGURE 5. Composite hierarchical cluster analysis with the positions of the five fossil localities (dagger symbols) indicated. Solid black lines indicate the results when all five fossil localities are included in the analysis; dashed black lines indicate the results when each fossil locality is analyzed individually. The position of Rümikon did not vary in the two analysis. Abbreviations: LV, La Venta; QH, Quebrada Honda; RU, Rümikon; SC, Santa Cruz; TG, Tinguiririca.

 figure5a

 

 

FIGURE 6. Classification Tree results and predictions for the five fossil localities. A) Results and predictions for CT1, vegetative cover. B) Results and predictions for CT2, biogeographic realm. Abbreviations: LV, La Venta; QH, Quebrada Honda; RU, Rümikon; SC, Santa Cruz; TG, Tinguiririca.

 figure6

 

 

FIGURE 7. Classification Tree results for CT3, biome. Abbreviations: LV, La Venta; QH, Quebrada Honda; RU, Rümikon; SC, Santa Cruz; TG, Tinguiririca.

figure7

logo smallPalaeontologia Electronica
Webmaster
1998–2020
23 years of electronic palaeontology

PE is archived by CLOCKSS and LOCKSS programs.