Phylogenetic tree and estimated divergence times. OeyHarald ZakrzewskiMartha GravermannKerstin YoungNeil D. K. KorhonenPasi N. GobertGeoffrey NawaratnaSujeevi HasanShihab MartínezDavid M. YouHong LavinMartin K. JonesMalcolm RaganMark A. StoyeJens OleagaAna M. EmeryAidan L. WebsterBonnie RollinsonDavid B. GasserRobin P. McManusDonald KrauseLutz 2019 <p>A maximum-likelihood phylogenetic tree was inferred from concatenated protein sequences corresponding to 52 shared single-copy genes. Species divergence was estimated using a Bayesian relaxed molecular clock model. Divergence time is given in million years; 95% confidence intervals are shown in brackets. The divergence time between <i>S</i>. <i>bovis</i> and <i>S</i>. <i>haematobium</i> was estimated to be 1.85 million years (95% confidence interval 1.21–2.63 mya). The model was calibrated using previously published divergence times and ages of fossil records of intermediate snail hosts.</p>