FERDINAND ROEMER
GUSTAF LINDSTROM
PALEONTOLOGICAL RESEARCH INSTITUTION
FRANÇOIS JULET PICTET
JOHN M. CLARKE
SOCIETA MALACOLOGICA ITALIANA
KAISERLICHEN AKADEMIE DE WISSENSCHAFTEN
SOCIETA MALACOLOGICA ITALIANA
FERDINAND ROEMER
GUSTAF LINDSTROM
PALEONTOLOGICAL RESEARCH INSTITUTION
FRANÇOIS JULET PICTET
JOHN M. CLARKE
SOCIETA MALACOLOGICA ITALIANA
KAISERLICHEN AKADEMIE DE WISSENSCHAFTEN
SOCIETA MALACOLOGICA ITALIANA