Pollen and stomata record of Tăul dintre Brazi plotted against depth and calibrated BP timescales. Norway spruce (Picea abies) fossils are highlighted in red. LPAZ: local pollen assemblage zones as in Table 3; ➊ first occurrence of spruce stomata at 13,900 cal yr BP; ➋ -➌ early Holocene population expansion of spruce between 11,750 - 10,780 cal yr BP inferred by pollen and stomata increases. Black rectangles along the timescale bar indicate the position of the radiocarbon dated samples.
Magyari et al. BMC Evolutionary Biology 2011 11:66 doi:10.1186/1471-2148-11-66