Columbia subject headings:
Foord, Arthur H. (Arthur Humphrys), 1844- Monograph of the Carboniferous Cephalopoda of Ireland.
Nautiloidea, Fossil--Ireland--Classification.
Nautiloidea, Fossil--Ireland.
Paleontology--Carboniferous.
Paleontology--Ireland.
Harvard subject headings:
Princeton subject headings:
Cephalopoda, Fossil.
Foord, Arthur H. (Arthur Humphrys), 1844- Monograph of the carboniferous cephalopoda of Ireland.
Paleontology--Carboniferous.
Paleontology--Ireland.