Data from: Morphometric analysis of inter- and intraspecific variation in the Cambrian helcionelloid mollusc Mackinnonia ...

• Main Authors: Jackson, Illiam S.C., Claybourn, Thomas M.
• Format: Dataset
• Language: English
• Published: Dryad 2019
• Subjects: Helcionelloida; species concept; incipient species; Elliptical Fourier Analysis; Early Cambrian; Davidonia; Cambrian Series 2; Ajax; Shackleton; Antarc*; Antarctica
• Online Access: https://dx.doi.org/10.5061/dryad.5b7n3; https://datadryad.org/stash/dataset/doi:10.5061/dryad.5b7n3

Phylogenetic relationships within the helcionelloids have been difficult to establish. One of the reasons for this is that qualitative approaches to investigating morphological variation in this group have struggled to identify clear patterns. An alternative method of identifying these patterns is t...