TY  - JOUR
AB  - Nodules consisting of nuclei of siliceous fossils in a matrix of calcium carbonate occur in the Niagaran dolomite near Chicago. The nodules contain an invertebrate fauna of small individuals comprising 52 genera and 66 species of which 9 genera and 34 species are herein described as new.

A1  - Grubbs, D. M.
JO  - Journal of Paleontology
IS  - 6
SP  - 543
EP  - 560
C1  - 13(6): 543-560
TI  - Fauna of the Niagaran nodules of the Chicago Area
UR  - https://marinespecies.org/foraminifera/aphia.php?p=sourcedetails&id=286150
VL  - 13
PY  - 1939
Y2  - 2026-07-21
ER  -