Transitional fossils from fishes to tetrapods (Phylogenetic tree) - Wildlife in the Fossil sites
Classified animal and plant picture guide. Clicking the Organism name 
shows the images, and pointing the Organism name shows the tooltip with three links at the left-top corner.
shows the images, and pointing the Organism name shows the tooltip with three links at the left-top corner.The following is the transitional fossils from fishes to tetrapods excavated from the Paleozoic stratum. It describes that the fishes have evolved from sea to land. The explanation in brackets is the ages they lived in extinct species. Note that Mya is million years ago. For example, "48.6～40.4 Mya" shows a range between 48.6 and 40.4 million years ago. The italic and bold figures, e.g. 488, show out of the range. The time range is shown in the Geological Time Table. The followings are a part of the Evolutionary Tree.
Ray-finned fish (Actinopterygii) (421.3 Mya～)
Lobe-finned fish Coelacanths (409.1 Mya～)
Lobe-finned fish Lungfish (412.3 Mya～)
Lobe-finned fish Eusthenopteron (385.3～374.5 Mya) Lobe-finned fish Panderichthys (383.7～376.1 Mya) Lobe-finned fish Tiktaalik (383.7～376.1 Mya) 
Primitive amphibia Elginerpeton (385.3～374.5 Mya) Lobe-finned fish Ventastega (385.3～374.5 Mya)
Lobe-finned fish Metaxygnathus (385.3～374.5 Mya) Primitive amphibia Acanthostega (374.5～359.2 Mya; Semiaquatic; 8 digits) Primitive amphibia Ichthyostega (374～359 Mya; Semiaquatic；7 digits) Primitive amphibia Hynerpeton (374.5～359.2 Mya; Aquatic) Primitive amphibia Greererpeton (326.4～312 Mya; Aquatic) Amphibia Amphibian (336 Mya～) Primitive amphibia Tulerpeton (365 Mya; Semiaquatic；6 digits) Amniota Amniote (318 Mya～; Reptiles, Birds, Mammals)