PolyodonPsephurusScaphirhynchusPseudoscaphirhynchusAcipenser_sturioAcipenser_oxyrinchusAcipenser_stellatusAcipenser_ruthenusAcipenser_schrenckiiAcipenser_nudiventrisAcipenser_persicusAcipenser_gueldenstaedtiiAcipenser_naccariiAcipenser_dabryanusAcipenser_sinensisAcipenser_medirostrisAcipenser_mikadoiAcipenser_transmontanusAcipenser_brevirostrumAcipenser_fulvescensAcipenser_baeriiHuso_husoHuso_dauricusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Artyukhin_2006a