Foraminifera - The World... www.marinespecies.org

Foraminifera - The World... www.marinespecies.org

Molluscabase - Nautilus... www.molluscabase.org

Molluscabase - Nautilus... www.molluscabase.org

WoRMS - World Register of... www.marinespecies.org

WoRMS - World Register of... www.marinespecies.org

WoRMS - World Register of... www.marinespecies.org

WoRMS - World Register of... www.marinespecies.org

Foraminifera - The World... www.marinespecies.org

Foraminifera - The World... www.marinespecies.org

Foraminifera - The World... www.marinespecies.org

Molluscabase - taxdetails www.molluscabase.org

Calcarina spengleri... www.reeflex.net

Molluscabase - browser www.molluscabase.org

ON THE IDENTITY OF... pubs.geoscienceworld.org

Calcarina spengleri (Gmelin... eol.org

Variety of Life:... taxondiversity.fieldofscien...

Calcarina - Wikipedia, la... es.wikipedia.org

ON THE IDENTITY OF... pubs.geoscienceworld.org

Bulletin of the Geological... 2dgf.dk