C. T. Schafer, F. E. Cole, L. Carter; Bathyal zone benthic foraminiferal genera off Northeast Newfoundland. Journal of Foraminiferal Research ; 11 (4): 296–313. doi: https://doi.org/10.2113/gsjfr.11.4.296
About 35% of the bathyal zone foraminiferal genera observed on the north east Newfoundland slope and rise, whether arenaceous (43 genera) or calcareous (63) have an average absolute abundance per genus of greater than one specimen per cubic cm of wet sediment. Mean absolute abundance for the total number of calcareous genera is 2.5/cc of wet sediment, compared to 1.5 for the arenaceous taxa. Many calcareous and arenaceous genera observed on the Newfoundland slope appear to have their peak distributions in relatively deep water compared to equivalent Gulf of Mexico taxa.