Molecular analyses including only pre-aligned regions. A- Bayesian phylogram. Pairing and non-pairing regions were modeled separately. A seven-state model (7A) was implemented for the paring regions and a GTR + I + G was used for the non-pairing regions. Numbers indicate posterior probabilities. B- Strict consensus of the 28 most parsimonious trees of molecular data under static homology as established using secondary structure as a guide (MPT, Length = 4982; CI = 0.338; RI = 0.600).