| Fairly closely related to ''[[Acanthostega]]''. It possibly representrepresents an early (and ultimately unsuccessful) line adapted to moving on land by [[Geometer moth|inchworm]]-like movements.
| Together with ''Acanthostega'' the sole early [[labyrinthodont]] known from fairly complete skeletons.
| Early labyrinthodont with [[Polydactyly in early tetrapods|polydactylous]], paddle-like feet and reinforced vertebrae and neural spines. It probably spent time on land, yet retained gills and a tail with [[fin ray]]es.
Line 727:
* ''[[Tulerpeton]]''
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| An advanced [[ichthyostegalia]]n, it straddlestraddled the divide between the fish-like [[Devonian]] forms and the more advanced [[Carboniferous]] amphibians. It has been suggested it is an early [[Reptiliomorpha|reptil-like amphibian]].<ref>{{cite journal|last=Lebedev|first=O.A.|title=The first find of a Devonian tetrapod vertebrate in the USSR|journal=Doklady Akademii Nauk SSSR|year=1984|volume=278|series=Palaeontology|pages=1470–1473|language=ru}}</ref>
| A large animal with paddle-like six-toed feet. ItHowever, didit howeverdid not have gills in adulthood, and is thus the oldest [[labyrinthodont]] known to depend entirely on breathing with its lungs.<ref>{{cite journal |last1=Gordon |first1=M.S. |last2=Long |first2=J.A. |year=2004 |title=The Greatest Step in Vertebrate History: A Paleobiological Review of the Fish-Tetrapod Transition |url=http://usf.usfca.edu/fac_staff/dever/tetrapod_review.pdf |journal=Physiological and Biochemical Zoology |volume=77 |issue=5|pages=700–719 |doi=10.1086/425183 |pmid=15547790|s2cid=1260442 }}</ref>
