Data for: Analysis of a Cretaceous (late Aptian) high-stress ecosystem: The Romualdo Formation of the Araripe Basin, northeastern Brazil

The files contain information on the samples used for the palaeoecological analysis of the benthic macrofauna, in particular faunal composition, sample size, relative abundance of taxa (S1), and evenness (S2) as well as a figure illustrating the correspondence analysis of the square-root transformed dataset (S3).