Fossils excavated in the area of the Petrifi ed Forest, particularly along the new road alignment include non-movable fi nds (standing fossilized trees found in their natural growing positions and with their root systems in full development) and movable fi ndings (large parts and fragments of petrifi ed logs lying within the pyroclastic volcanic rocks, as well as leaves, branches, fruits and fragments of petrifi ed logs found on the surface or in the soil horizon).
When a high level of paleontological evidence is discovered at a particular location, it is classified as a fossil-bearing site.
Excavations require systematic organization, a multifaceted team of scientists, technicians, workers and professionals, and the use of appropriate equipment.
Survey and collection of findings
The first step is to survey the area, which is carried out beforehand as well as during the excavation works along the alignment with continuous monitoring. The research team examines the area on either side of the alignment, detecting any petrified trunks visible on the surface and collecting surface finds (fragments of petrifi ed logs, sections twigs etc.) while carrying out a geological survey and mapping. Th ey count and record the fi ndings and record any visible surface indications related to the existence of fossils (silica veins, pyroclastic horizons, volcanic ash horizons). The data are collected, analyzed and assessed through continuing work.