Figure 1. Heterobranchia phylogeny inferred from the 50% occupancy matrix (2,156 UCEs) based on BI using the GTRGAMMA model implemented in ExaBayes and ML using the GHOST model on unpartitioned alignments implemented in IQ-TREE. High-level taxonomic ranking groupings depicted in boxes in the right. The tree is rooted with the caenogastropods Charonia tritonis and Crepidula navicella . Only support values for nodes without full support are depicted. (*) denotes a conflicting topology between BI and ML, see Results for details.