Dataset file containing morphological data and code for phylogenetic analysis in MrBayes (Fig. 5), and segment data used for the variability graphs (Fig. 6). (TXT 44 kb)
The auklets Aethia and Ptychoramphus comprise the smallest known Alcidae (Aves, Charadriiformes) and have a fossil record that extends into the Miocene. The evolution of auklets is poorly understood
