https://jm.copernicus.org/articles/17/97/1998/jm-17-97-1998-metrics.html
JM - Metrics - On the evolution of the Hedbergellidae from the Praehedbergellidae
Abstract. In order to establish the relationship between the smooth, microperforate praehedbergellid forms of the genus Blefuscuiana with the younger,...
on thejmmetricsevolution