No description available.

Identification of pollen in fecal pellets is a potential technique for describing an animals diet and in turn the vegetation of an area. Mule deer and Bighorn Sheep pellets representing both summer and winter browsing and a variety of habitats were examined using relative percentages and the absolute pollen frequencies. In addition, fossil pellets from Stanton's Cave, Grand Canyon, Arizona, were examined and compared with modern pellets. Absolute pollen frequencies of individual pellets showed higher values and greater variation for summer pellets than for winter pellets. Relative pollen percentages for a specific vegetation type showed more variation in fecal pellets than in soil surface samples. Unless specifically being eaten, arboreal pollen types such as Pinus are less abundant in fecal pellets than in soil samples. Unlike soil surface samples, arboreal pollen types in fecal pellets are frequently limited to the immediate source area.

This thesis summarizes palynological and paleontological study of the middle part of the Cracow Sandstone Series which is divided into the Łaziska (Bolsovian) and the Libiąz Beds (Asturian). Samples were obtained from the borehole G5 Dab nearby Jaworzno from both coal and non-coal sediments. Palynological study confirmed the stratigraphical gap between these two beds by observation of dissapearance of nine miospore taxons at the bottom of the Libiąz Beds (Torispora, Converrucosisporites, Schulzospora, Gillespieisporites, Schopfites, Convolutispora, Cristatisporites, Tripartites, Cingulizonates). Different ecological demands during the coal and non-coal sedimentation were confirmed. The sedimentation of the Łaziska coal seams is characterized by alternation of lycospore and densospore phases which confirmes alternation of the contrasting plant assamblages with a predominance of the arborescent lycopsids Lepidodendron and Lepidophloios and sub-arborescent lycopsid Omphalophloios. Arborescent lycopsids preferred planar (rheotrophic) mires. Plant assamblages with predominance of the lycopsid Omphalophloios colonized drier peat swamps with fluctuating water level (ombrothrophic). Peat swamp vegetation in Libiąz Beds was damper with localy transitional phase with increased incidence of the genus...