Microvertebrates extraction service requires many hours of dedication as well as a precise methodology and a strict protocol during all the process:
- Washing of the sediment with moderate pressure, using various sieves of different mesh screens light (from bottom to top 0.5 mm, 5 mm and 10 mm) in order to separate the residue in different sizes and grits to facilitate further analyses and studies.
- Placing the resulting residue on screens to dry at room temperature.
- Picking of the residues in order to separate the bone remains or invertebrates from the gangue or mineral residues. The small fossils can be naked eye distinguished for the large-sized fraction and have to be picked using tweezers under good direct lighting. For the smallest fraction (<3 mm) a binocular and precision tweezers have to be used. In our case, binocular lenses EXACTA-OPTECH mod. LFZ s/n 201030 20W and similar are used.