Complex sentence: Wet sieving is a technique which is frequently used for the collection of small mammalian fossils, and by using this technique even the smallest specimens may be recovered, any you will thus obtain a more balanced representation of the fossils present at that particular locality.
Split into simpler sentences: Wet sieving is a technique that is frequently used for the collection of small mammalian fossils, and by using this technique even the smallest specimens may be recovered. Any fossils you will thus obtain create a more balanced representation of the fossils present at that particular locality.