Ancient and nonuniform loss of olfactory receptor expression renders the shark nose a de facto vomeronasal organ

- Concatenaed_alignment.faa = Concatenated gene alignment of 1068 BUSCO genes retrieved in 12 Chondrichthyes. - partitions.txt = Position of each partition (each gene) in the concatenated alignment - partitions.txt.best_scheme.nex = Best model found by ModelFinder for each partition of the concatenaed alignment. - DATE_FILE.txt = Calibration points used, found in TimeTree - partitions.txt.best_scheme.nex.timetree.nex = Species tree in nexus format - README.txt = IQ-TREE2 command to reproduce the species tree.