Tetrapodomorpha is a clade of vertebrates, consisting of sarcopterygians with a number of features of tetrapods. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Binomial name Aptenodytes forsteri Gray, 1844 For other uses, see Animal (disambiguation). ... Typical Classes Subphylum Urochordata - Tunicatas Ascidiacea Thaliacea Larvacea Subphylum Cephalochordata - Lancelets Subphylum Myxini - Hagfishes Subphylum Vertebrata - Vertebrates Petromyzontida - Lampreys Placodermi (extinct) Chondrichthyes - Cartilaginous fishes Acanthodii (extinct) Actinopterygii - Ray-finned fishes Actinistia - Coelacanths Dipnoi - Lungfishes Amphibia - Amphibians Reptilia - Reptiles Aves - Birds Mammalia - Mammals Chordates (phylum Chordata) include the vertebrates, together with... Vertebrata is a subphylum of chordates, specifically, those with backbones or spinal columns. ... Subclasses Coelacanthimorpha - Coelacanths Dipnoi - Lungfishes Tetrapoda Sarcopterygii is traditionally the class of lobe-finned fishes, consisting of lungfish and coelacanths. ... A clade is group of organisms which share a common ancestor and which includes all decendents of that ancestor. ... Vertebrata is a subphylum of chordates, specifically, those with backbones or spinal columns. ... Subclasses Coelacanthimorpha - Coelacanths Dipnoi - Lungfishes Tetrapoda Sarcopterygii is traditionally the class of lobe-finned fishes, consisting of lungfish and coelacanths. ... Groups See text. ...

It contains the true tetrapods and several groups of related lobe-finned fishes, collectively known as the osteolepiforms. Groups See text. ...

Among the characters defining the tetrapodomorphs are modifications to the fins, notably a humerus with convex head articulating with the glenoid fossa (the socket of the shoulder joint). The humerus is a long bone in the arm or fore-legs (animals) that runs from the shoulder to the elbow. ... The human upper arm Grays Fig. ...

Tetrapodomorph fossils are known from the early Devonian onwards, and include Osteolepis and Panderichthys. == == Disambiguation: Devonian is sometimes used to refer to the Southwestern Brythonic language, and the people of the county of Devon are sometimes referred to as Devonians The Devonian is a geologic period of the Paleozoic era. ... Panderichthys Panderichthys is a 90-130 cm long fish from the Late Devonian period . ...

Taxonomy

After Benton, 2004 [1]:

• Class Sarcopterygii
  • Subclass TETRAPODOMORPHA
    • Order Rhizodontida
    • Superorder Osteolepidida
      • Family Tristichopteridae
        • Eusthenopteron
      • Order Osteolepiformes
        • Osteolepis
    • Order Panderichthyida
    • Tiktaalik
    • Superclass Tetrapoda

Subclasses Coelacanthimorpha - Coelacanths Dipnoi - Lungfishes Tetrapoda Sarcopterygii is traditionally the class of lobe-finned fishes, consisting of lungfish and coelacanths. ... Eusthenopteron is a prehistoric fish preserved as fossils in rocks of late Devonian Period age (the Devonian Period lasted from 415 to 360 million years ago). ... Panderichthys Panderichthys is a 90-130 cm long fish from the Late Devonian period . ... Binomial name Tiktaalik roseae Daeschler, Shubin & Jenkins, 2006 Tiktaalik is a genus of extinct sarcopterygian (lobe-finned) fishes from the late Devonian with many tetrapod-like features. ... Classes Synapsida Sauropsida Amphibia A tetrapod (Greek tetrapoda, four-legged) is a vertebrate animal having four feet, legs or leglike appendages. ...

References

• Mikko Haaramo. Tetrapodomorpha - Terrestrial vertebrate-like sarcopterygians. URL accessed on 6 April 2006.
• P. E. Ahlberg and Z. Johanson (1998). "Osteolepiforms and the ancestry of tetrapods". Nature 395 (6704): 792–794. DOI:10.1038/27421.
• Michel Laurin, Marc Girondot and Armand de Ricqlès (2000). "Early tetrapod evolution". TREE 15 (3).