Oligocene Fossil Fish Clupea from Poland
Actinopterygii, Order Clupeiformes, Family Clupeidae
Time: Middle Oligocene
Site: Rowe, Carpathian Mountains. Poland
Herring-like fish are the most important fish group on this planet.
They are the dominant converter of the enormous production of zooplankton,
utilizing the biomass of copepods, mysids and krill in the pelagial.
They are, on the other hand, a central prey item for higher trophic
levels. The reason for its success is still enigmatic; one speculation
attributes their dominance to the outstanding way of living in huge,
extremely fast cruising schools. It is well preserved, revealing
excellent detail of the tail, thorax and head.
fossil pictures to enlarge