TetragraptusPendeograptusDidymograptellusExpansograptusHolmograptusIsograptusArienigraptusPseudisograptusMaeandrograptusPerissograptusCardiograptusBergstroemogrExigraptusU_sinodentatusU_austrodentatusU_formosusU_sinicusOelandograptusHustedograptusEoglyptograptusPseudoclimacogrArchiclimacogrPhyllograptusGlossograptusCryptograptusOsteologyMaximum ParsimonyBased on reanalysis of the original matrix.Fortey_etal_2005a