Mammalia Placentalia Xenarthra evolutionary dynamics Armadillos Bayesian phylogenetics Choloepus Dasypus Mitochondrial and nuclear markers Mixture models Myrmecophaga Supermatrix Tertiary Tunicata mitochondrial genome mitogenomics molecular systematics A2AB Anteaters Ascidiacea Bradypus Cabassous Chaetophractus Cingulata Cyclopes Didelphidae Euphractus Eutheria Folivora Gene order Genome assembly Glires Herdmania momus IRBP Illumina Marsupialia Next-generation sequencing Pilosa Priodontes Rearrangements Rodentia Tamandua Tolypeutes Transthyretin intron 1 Vermilingua Xenarthrans Zaedyus chordates molecular phylogeny nuclear markers