Superfamily Ranoidea Pectoral girdle firmisternal; ribs absent; amplexus axillary; larvae with single sinistral spiracle and complex mouthparts or undergoing direct development. Family Arthroleptidae No fossil record; 8 presacral vertebrae; vertebral column procoelous with Presacral VIII (biconcave); aquatic larvae or direct development; 7 genera, 74 species; adult
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