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Consistent SU(6) and SU(8) spin-flavor extensions of the SU(3) flavorWeinberg-Tomozawa (WT) meson-baryon chiral Lagrangian are constructed, whichincorporate vector meson degrees of freedom. In the charmless sector, theon-shell approximation to the Bethe-Salpeter (BS) approach successfullyreproduces previous SU(3) WT results for the lowest-lying s--wave negativeparity baryon resonances. It also provides some information on the dynamics ofheavier ones and of the lightest d-wave negative parity resonances, as e.g. theLambda(1520). For charmed baryons the scheme is consistent with heavy quarksymmetry, and our preliminary results in the strangeness-less charm C=+1 sectordescribe the main features of the three-star J^P=1/2^- Lambda_c(2595) andJ^P=3/2^- Lambda_c(2625) resonances. We also find a second broad J^P=1/2^-state close to the Lambda_c(2595)

Chiral SU(3) Bethe Salpeter Model: Extension to SU(6) and SU(8) Spin-Flavor Symmetries