Sentence examples for based on fossil pollen from inspiring English sources

Previous studies based on fossil pollen data have reported significant changes in vegetation on the alpine Tibetan Plateau during the Holocene.

Based on fossil pollen evidence, the plant genus Alnus would have originated from tropical Eastern Asia around the Late Cretaceous [ 8], and it is likely that it reached Europe during early Oligocene.

The age of the separation of the BEP and PACCAD clades ('crown group') has been estimated at 55 60 mya, based on fossil pollen (Crepet and Feldman, 1991), but a recent report of grass phytoliths in dinosaur dung may push back the crown group age to 80 mya (Prasad et al., 2005) (Fig. 1).

Divergence events were calibrated using combinations of fixed and/or constrained maximum and minimum times at the root node and an internal node based on fossil Acacia pollen records and biogeographical evidence.

He said the challenge was to move away from a model based on fossil fuels.

Our economy is based on fossil fuels, the remains of long dead organisms.

Iguanodon was the second type of dinosaur formally named based on fossil specimens, after Megalosaurus.

However, this date is not based on fossil evidence.

Further calibrations were provided based on fossil eggs.

The fossils of each superfamily also are subject to preservational bias and, consequently, a distributional bias based on fossil age.

Among the three fossil calibration methodologies, divergence times estimated using a fossil-tip taxon were largely congruent with results based on fossil node calibrations both with and without the Canarieae fossil (Fig.  1, Additional file 1: A5 (A) & (B)).