The most
ancient inhabitant of our Paleopark is a lobe-finned fish Panderichthys. Its
relatives lived in the reservoirs with fresh water in the Devonian period about
370-38 million years ago. What is so special about these creatures? Panderichthys
had quite powerful fins which allowed them to cover distance from one pond to
another over land. Another peculiarity of this fish is its ability to breathe
not only under water but also atmospheric air on land. Using modern methods of
computer tomography, scientists studied fins of Panderichthys and discovered small
bones similar to the bones of terrestrial vertebrates.
Panderichthys
was named in honor of the Russian scientist and evolutionist Christian Heinrich
von Pander. The species was discovered in 1930 by the German
paleontologist Walter Robert Gross and first officially described in 1941.
Fossil remains of such fish were found in the Baltics and the Leningrad
oblast. The first archaeological discoveries made in the Soviet Latvia in the 1970es
were studied by the Russian paleontologists. The head of excavations was the
Russian academician E.I. Vorobieva. The scientists concluded that panderichthys
wasn’t a transitional form from fish to amphibians, however learning the structure
of this unusual fish helped to understand the appearance of particular adaptations
to terrestrial life among first tetrapods.