ON THE TAXONOMIC POSITION, THE SPECIES AND THE PALEOECOLOGICAL SIGNIFICANCE OF THE GENERA EUBORA, TOXOSOMA AND LITTORIDINA - IN THE PLIOCENE PEBAS FORMATION OF THE UPPER AMAZON REGION - (GASTROPODA, PROSOBRANCHIA)
Published in Veliger, in 1980, in volume 22, pages 364-375
Date published:1980