Wildlife Feature

Megafish Past and Present (Phylogenetic tree) - Animals in the Habitats and the Fossil sites, and Biodiversity

Classified animal 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.
A lot of huge fishes have appeared after the first birth of wildlife on the earth. The explanation in brackets is the ages they lived in extinct species, and the habitat in extant 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 time range is shown in the Geological Time Table. The followings are a part of the Evolutionary Tree.
  • Kingdom Animalia
    • Phylum Chordate
      • Subphylum Vertebra
        • Infraphylum Gnathostomata (Jawed vertebrates)
          • Class Placodermi Armoured fish
            Armoured fish Eastmanosteus   (397～385 Mya; １．５m), Dunkleosteus   (376.1～359.2 Mya; １０m)
          • Class Chondrichthyes Cartilaginous fish
            • Subclass Holocephali (Prehitoric sharks)
              Cartilaginous fish Edestus   (318.1～260.5 Mya; ３m), Orodus   (302～290 Mya; ４m), Helicoprion   (279.5～268 Mya; ３m)
            • Subclass Elasmobranchii (Ray, Shark)
              Cartilaginous fish Orthacanthus   (299～65.5 Mya; ３m), Ptychodus   (99.6～61.7 Mya; １０m)
              • Superorder Batoidea (Rays, Skates)
                Ray Manta ray   (warm ocean; ７．６m), Giant freshwater stingray   (Southeast Asia; ４m)
              • Superorder Selachimorpha (Sharks)
                Shark Squalicorax   (112～65.5 Mya; ５m), Cretoxyrhina   (99.6～65.5 Mya; ６m), Carcharodon megalodon   (23.03～3 Mya; ２０m), Great white shark   (all ocean; ５m), Basking shark   (warm ocean; １２m), Megamouth shark   (warm ocean; ５．５m), Goblin shark   (deap sea; ６m), Pacific sleeper shark   (North Pacific; ４．４m), Bluntnose sixgill shark   (deap sea; ５．４m), Whale shark   (warm ocean; １２m)
          • Class Sarcopterygii (Four-limbed vertebrate, Coelacanth, Lungfish; 422.9 Mya～) Lobe-finned fish
            • Subclass Tetrapodomorpha (Four-limbed vertebrates)
              Lobe-finned fish Rhizodus   (377～310 Mya; ７m), Hyneria   (360 Mya; ４m)
            • Subclass Coelacnathimorpha (Coelacanths; 409.1 Mya～)
              Coelacanth Rhabdoderma   (359.2～299 Mya; ６m), Mawsonia   (145.5～93.5 Mya; ４m), Comorese coelacanth   (Comoro; ２m), Indonesian coelacanth   (Indonesia; ２m)
          • Class Actinopterygii (Most living fishes) Ray-finned fish
            Ray-finned fish Leedsichthys   (164.7～155.7 Mya; ２８m), Protosphyraena   (99.6～70.6 Mya; ３m)
            • Subclass Chondrostei (Coelacanths; 130 Mya～)
              Ray-finned fish Beluga   (Caspian sea; ８．６m), Kaluga   ( Amur River; ５．６m)
            • Subclass Neopterygii (251 Mya～)
              • Infraclass Holostei (Gars, Bowfins)
                Ray-finned fish Alligator Gar   (North America; ２．６m)
              • Infraclass Teleostei (Common fishes)
                Ray-finned fish Ichthyodectes (99.6～70.6 Mya; ４m), Xiphactinus   (99.6～65.5 Mya; ５m), Pirarucu   (South America; ２．５m), Atlantic tarpon   (Atlantic; ２．５m), King of herrings   (deep sea; １２m)
                Catfish Wels catfish   (Europe; ４m), Mekong giant catfish   (Southeast Asia; ３m), Piraíba   (Amazon; ３．６m)
                • Order Perciformes (Anabantids, Centrarchids; 199.6 Mya～)
                  Ray-finned fish Nile perch   (Africa; ２m), Atlantic goliath grouper   (Atlantic; ２．５m), Giant sea bass   (Northeast Pacific; ２．５m), Asian sheepshead wrasse   (Northwest Pacific; １m)