Godunko Roman J.

Neumann Christian

Krzemiński Wiesław

Fossil mayfly collections of the Museum für Naturkunde, Humboldt University, Berlin. 2, Redescription of Baltameletus oligocaenicus Demoulin, 1968 with notes on Ameletidae McCafferty, 1991 (Insecta: Ephemeroptera) from the Eocene Baltic amber