Alignment of adenosine triphosphate-6 (ATP6-DF3, ATP6-DR2, Chaves et al. 2012) sequence data in nexus format. Sample ID is tied to selected specimen (fecal DNA samples) of three Neotropical felids (jaguar, Panthera onca; puma, Puma concolor; ocelot, Leopardus pardalis) collected in Belize, Central America