The microvertebrates extraction service requires many hours of dedication as well as following a precise methodology and a strict protocol during the whole process:
- Washing the sediment with moderate pressure, using various sieves of different mesh sizes (from smaller to bigger: 0.5 mm, 5 mm and 10 mm) in order to separate the residue by size and grit to facilitate further analyses and studies.
- Placing the resulting residue on screens to dry at room temperature.
- Picking the residues to separate the bone remains or invertebrates from the gangue or mineral residues. Small fossils can be easily distinguished from large-sized fractions and have to be picked using tweezers under good direct lighting. For the smallest fractions (<3 mm), you must use binoculars and precision tweezers. We use the EXACTA-OPTECH model LFZ s/n 201030 20W and similar binoculars.