Farrell (in prep.) provided us with a COI molecular clock of 1.7% sequence divergence per million years, calibrated using palynological
and biogeographic data for the genus Tetraopes (Cerambycidae).
This work reports the first palynological
descriptions of four species of Jatropha in Northwestern Mexico, non-toxic J.
Middle Triassic Flora and Climatic changes in the Western Salt Range, Pakistan, based on Palynological
1) were processed following standard palynological
procedures involving acid treatment and concentration of organic residue by sieving through a 15 [micro]m screen.
studies not only provided additional information but also provided taxonomic characters which proved to be helpful to improve the systematic position of taxa within their respective classification.
While assessing the former discussion, one has to consider that it is difficult to see one specific event in archaeological and palynological
In the present study we dealed with the taxonomic positions of the species under the light of the palynological
Geochemical and palynological
investigation of the Shengli River marine oil shale (China): implications for palaeoenvironment and palaeoclimate.
Pollen from the Naco and Lehner sites (Mehringer and Haynes, 1965) indicate increasing aridity at the end of the Clovis occupation of the valley, as does geological and palynological
data at nearby Wilcox Playa (Hevly and Martin, 1961; Haynes et al., 1987) and Murray Springs during the Clovis drought (Haynes, 1991, 2007).
research on Xyridaceae is hindered by limited suitable samples, especially in fluid preserved collections, due to the remote locations of most populations and the brief floral phenology (Carlquist, 1960; Campbell, 2004b).
2000 onwards, PalDat--a palynological
database: Descriptions, illustrations, identification, and information retrieval.
evidence for the generic delimitation of Sechium sensu lato (Cucurbitaceae) and its allies.