The Burrows of Decapod Crustaceans from Paleogene Deposits of the Middle Volga Region: Paleogeographic Implications

Аннотация

The description of a new find of the burrows of decapod crustaceans from Upper Paleocene and Lower Eocene deposits relating to two ichnotaxa (Thalassinoides suevicus Rieth and Ophiomorpha nodosa Lundgren) clarifies their stratigraphic position and shows the paleogeographic significance of determining eustatic phases in the development of the semiclosed Early Paleogene Volga–Caspian basin.