Squaloraja is a genus of chimaeriform fishes known from the Early Jurassic. It has dorsoventrally flattened body and long median rostral cartilage. Males have lance-like tenaculum that articulates with central groove on dorsal face The only member family Squalorajidae, itself in suborder Squalorajoidei order Chimaeriformes. Phylogenetic analyses suggest divergence other Chimaeriformes Mississip...