macrofossils

At the same time, some plants that do not produce much pollen can be identified in the cores from the fossil traces—called macrofossils—that they leave behind.

The Goddess and the Bull MICHAEL BALTER 2005

Spruce macrofossils are generally absent in the northern Quebec tundra zone, and the forest limit and soil charcoal limit occur together, strongly suggesting that the forest limit has remained stable during the last 2,000 to 3,000 years.

Climate change and forest distribution in the Arctic 2009

In general, fossil pollen and spores, plant macrofossils, and charcoal are used to determine temporal shifts in terrestrial ecosystem boundaries, notably past fluctuations in northern treeline and fire history.

Historical changes in freshwater ecosystems in the Arctic 2009

The most abundant macrofossils of the Oxford Clay Formation are ammonites and belemnites.

Archive 2006-07-01 Darren Naish 2006

The most abundant macrofossils of the Oxford Clay Formation are ammonites and belemnites.

Life in the Oxford Clay sea Darren Naish 2006

Variations in climate can be determined by the analysis of biological data like annual tree rings, fossilized pollen and other plant macrofossils, the abundance and distribution of insects and other organisms, and the biota in lake sediments.

Earth's climatic history 2007

For nine macrofossils found within these sections, thick bars show comparison of calibrated radiocarbon age estimates (2-sigma range given by vertical bars) with varve ages (horizontal bars).

Loso: Varves in Alaska « Climate Audit 2007

Upcore from a depth of ~325 cm,the sediment changes abruptly from an organic-rich gyttja 10–15 wt.% organic carbon to an inorganic silt containing abundant very small fragments of plant macrofossils.

Tephras in Ecuador « Climate Audit 2006

The relation between the radiocarbon dates from the macrofossils and the moss was not linear, and age differences ranged from approximately 1400 to 6400 yr.

Quelccaya Plant Deposits Again « Climate Audit 2006

The aquatic bryophyte samples consistently produced 14C ages significantly older than the terrestrial macrofossils.

Quelccaya Plant Deposits Again « Climate Audit 2006