Order Osteolepiformes

The osteolepiforms were the longest-lived group of rhipidistian fishes. They appeared in the Early Devonian and died out during the Early Permian, a span of some 130 million years. Many paleontologists are convinced that these rhipidistians were the ancestors of the amphibians (see p. 48).

name: Osteolepis time: Middle Devonian locality: Antarctica, Asia (India and Iran) and Europe (Latvian SSR and Scotland) size: 8 in/20 cm long This early member of the osteolepiforms was encased in thick, square

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