It is rare to find fossils in western Norway. During the Caledonian mountain-building event the bedrock got strongly folded and flattened, and was exposed to high pressure and temperature. In this way, most of the remains and imprints of organic life have been erased from the rocks. Some fossils were nonetheless preserved, including some on Stord.
In the 1930s the geologist and later professor Anders Kvale discovered several fossils of late Ordovician to early Silurian age (430–450 million years old) by Lake Dalskarvatnet, about 3 kilometres northeast of Dyvik. One can still find fossils in the creek beds that flow out in the east-northeastern part of the lake and in the limestone layer and lenses along the shores. Fossils from Lake Dalskarvatnet reveal the remains of stalks of crinoids, of bryozoans, corals and calcareous algae. Trilobites have also been found and lamp shells (brachiopods) by the water (pictured). Not all are equally whole or well preserved. Many fossils are flattened and folded from the time the Caledonian mountains were formed.
But, fossils have also been found other places in the municipality. Before one began to blast away bedrock in order to build boat houses or piers, Limbuvikjo (from the word "glue", suggesting limestone) by Dyvikvågen was the best place to find fossils in Hordaland. The fossil-bearing layers at Limbuvikjo belong to the same zone and are of the same age as those at Lake Dalskarvatnet.
