- GeoRef, Copyright 2004, American Geological Institute. Reference includes data from Bibliography and Index of Geology Exclusive of North America, Geological Society of America, Boulder, CO, United States
A foraminiferal fauna of fifty species was extracted from the Brora Argillaceous and Brora Arenaceous series of northern Scotland. Nodosariids, especially Lenticulina muensteri (Roemer), strongly predominate at most horizons, but three samples yielded faunas in which little but arenaceous foraminifera occur. The Brora assemblage is similar to faunas known from the English Oxford Clay and Corallian beds, and in North America it is most closely comparable to the fauna of the Lower Vanguard Formation of the western interior region.