Fossil Forests and Silicified Trunks

Unique growth strategy in the Earth's first trees revealed in silicified fossil trunks from China.

Cladoxylopsida included the earliest large trees that formed critical components of globally transformative pioneering forest ecosystems in the Mid- and early Late Devonian (ca. 393-372 Ma). Well-known cladoxylopsid fossils include the up to ∼1-m-diameter sandstone casts known as Eospermatopteris from Middle Devonian strata of New York State. Cladoxylopsid trunk structure comprised a more-or-le...

Silicified microcrystalline cellulose pdf

Herbivory in Antarctic fossil forests: evolutionary and palaeoclimatic significance

in Antarctic fossil forests: evolutionary and palaeoclimatic significance" (2007). Related Publications from ANDRILL Affiliates. Paper 4. Summary Many collections of Eocene Fossil leaves from Antarctica contain a rich store of insect trace fossils, indicating that insects were an important component of the unique forests that grew in polar regions. However, insect body fossils themselves are ra...

Abundant and rare spiders on tree trunks in German forests (Arachnida, Araneae)

The spider fauna active on the bark of trees in forests on eight sites in different regions in Germany was investigated. Trunk eclectors at about 2-4 meters height on living trees were used in different regions of Germany (SW Bavaria, Hesse, Brandenburg) between 1990 and 2003. In Hesse eclectors were also used on dead beech trees (standing and lying). In this study data, mainly from beech (Fagu...

A Feasibility Study on the Measurement of Tree Trunks in Forests Using Multi-scale Vertical Images

The determination of the Diameter at Breast Height (DBH) is an important variable that contributes to several studies on forest, e.g., environmental monitoring, tree growth, volume of wood, and biomass estimation. This paper presents a preliminary technique for the measurement of tree trunks using terrestrial images collected with a panoramic camera in nadir view. A multi-scale model is generat...