What is Eusthenopteron?
{{Italic title}}[[File:Eusthenopteron BW.jpg|thumb|Life restoration of ''[[Eusthenopteron foordi]]'']] '''''Eusthenopteron''''' is an extinct genus of [[lobe-finned fish]] from the Late [[Devonian]]. Early depictions of ''Eusthenopteron'' show it emerging onto land; however, everyone now agrees that it is a strictly aquatic [[animal]]. Notably, it is one of the earliest [[Sarcopterygii|sarcopterygians]] in which the [[humerus]] is preserved. Among the various species of this [[genus]], the most popular is undoubtedly ''[[Eusthenopteron foordi|E. foordi]]''. The species: * ''[[Eusthenopteron foordi]]'' ([[type species]]) * ''[[Eusthenopteron farloviensis]]'' * ''[[Eusthenopteron jenkinsi]]'' * ''[[Eusthenopteron obruchevi]]'' * ''[[Eusthenopteron savesoderberghi]]'' * ''[[Eusthenopteron traquairi]]'' * ''[[Eusthenopteron wenjukowi]]'' == Description == ''Eusthenopteron'' is a medium-to large-sized [[Tristichopteridae|tristichopterid]]. ''[[Eusthenopteron foordi|E. foordi]]'' is estimated to exceed 1.5 m (4 ft 11 in), while ''[[Eusthenopteron jenkinsi|E. jenkinsi]]'' probably reached 2.1 m (6 ft 11 in). The earliest-known fossilized evidence of [[bone marrow]] has been found in ''Eusthenopteron'', which may be the origin of bone marrow in [[Tetrapod|tetrapods]]. [[File:Eusthenopteron foordi Guide to the Gallery of Fishes.jpg|left|thumb|320x320px]] The most notable features of ''Eusthenopteron'' are the pectoral and [[Pelvic fin|pelvic fins]]. It had a large head with powerful jaws that could've been capable of biting [[prey]]. However, unlike the early [[Tetrapod|tetrapods]] though, ''Eusthenopteron'' did not have larval gills. == Distribution == Finds have been made in [[Europe]] and [[North America]]. == Some species == ''[[Eusthenopteron foordi]]'' is a well-known species. The other species, however, are not well-known. === ''Eusthenopteron foordi'' === ''[[Eusthenopteron foordi]]'' is the [[type species]] of ''Eusthenopteron''. It is the most famous and well-known species of ''Eusthenopterus''. It is also