273 Variations of leaf stomatal frequencies complicate the reconstruction of ancient atmospheric CO_2 concentrations using fossil Metasequoia leaf cuticle

Qin Leng, Li Wang, Hong Yang
Japanese Journal of Palynology  
Japan 124 Japanese Journal ofPalynology 58 (Special Issue){2012) were prepared from each sample. The resulting sediment was analyzed, the pollen types were identified based on reference slide collection of the Laboratory of Palynological Studies at Bahia State University and specialized catalogues. For qualitative and quantitative analyses, a minimum of 1,OOO pollen grains were counted
doi:10.24524/jjpal.58.special_124_2 fatcat:kot3miovlzdjfalt4c5wmpds4m