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Inner-ear reconstruction of the right petrosal of Necrolestes patagonensis (YPM-PU 15384) in lateral (A) and dorsal (B) views. aa, anterior ampulla; asc, anterior semicircular canal; cc, crus commune; co, cochlear duct; coaq, cochlear aqueduct; fc, fenestra cochleae; la, lateral ampulla; lsc, lateral semicircular canal; pa, posterior ampulla; psc, posterior semicircular canal; scc, second crus commune; ve, vestibule.
