Supplementary alignment, phylogenetic, and biogeographic analysis data for: Phylogenomics of Gars

Reconstructing deep-time biogeographic histories is limited by the comparatively recent diversification of most extant lineages. Ray-finned fishes (Actinopterygii), which include more than half of living vertebrates, are no exception. Although many of the most species-rich clades of ray-finned fishes diversified after the Cretaceous-Paleogene mass extinction, a handful of ancient and species-depauperate lineages persist today. One of the most iconic ancient lineages of ray-finned fishes are gars, a clade of seven freshwater species restricted to continental North America and Cuba. Here, we use DNA sequences of more than 1,000 exons collected for all living species of gars and a morphological dataset that includes 16 fossil species to infer their phylogenetic relationships and estimate divergence times using fossil-tip dated relaxed molecular clock analyses. Our analyses show that the two major lineages of living gars, Atractosteus and Lepisosteus, diverged approximately 105 million year..., ,