Palynomorph Preservation in Volcaniclastic Rocks of the Miocene Tepoztlan Formation (Central Mexico) and Implications for Paleoenvironmental Reconstruction

Abstract

The highest percentages of well-preserved, amorphous, and crumpled palynomorphs can be found in fluvial sediments while the highest percentage of fragmented palynomorphs is characteristic of lahar deposits. In contrast, the highest percentage of corroded palynomorphs can be found in deposits originating from pyroclastic flows.

Past Ecosystem Dynamics in Fashioning Views on Conserving Extant New World Vegetation1

“…Lenhardt et al, 2013. Alnus-"The earliest records of the genus Alnus…are from the Paleocene of the Kenai Peninsula, Kachemak Bay, Alaska… (Hollick, 1936, p. 95) (Crane & Stockey, 1987, p. 2498. A.…”