  Charmed baryon resonances that are generated dynamically are studied within a
unitary baryon-meson coupled-channel model, which incorporates heavy-quark spin
symmetry. The extension of the SU(3) Weinberg-Tomozawa chiral Lagrangian to
SU(8) spin-flavor symmetry plus a suitable symmetry breaking is used. The model
produces resonances with negative parity from s-wave interaction of
pseudoscalar and vector mesons with $1/2^+$ and $3/2^+$ baryons. Some of our
dynamically generated states can be readily assigned to resonances found
experimentally, while others do not have a straightforward identification and
require the compilation of more data and also refinements of the model.
