| 31. | Some of these ancient " lunged " fish were the ancestors of tetrapods.
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| 32. | These fins evolved into legs of the first tetrapod land vertebrates, amphibians.
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| 33. | Primitive tetrapods left behind footprints that would later fossilize.
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| 34. | The early tetrapod groups themselves are grouped as Labyrinthodontia.
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| 35. | :: : insidentaly I recently made a post at talk : Tetrapod.
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| 36. | "Acanthostega " is the earliest example of a digitized tetrapod.
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| 37. | Third, all vertebrates are tetrapod in this world.
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| 38. | Clack immersed herself in the enigma of how these early tetrapod branches took shape.
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| 39. | They half hoped to find an early tetrapod.
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| 40. | The oldest partial fossils of tetrapods date from the Frasnian beginning ~ 380 mya.
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