What is Tristichopteridae?
{{complex|date=February 2024}} {{no footnotes|date=February 2024}} {{Automatic taxobox | fossil_range = {{Fossil range|392|359}}<small>Middle - Late [[Devonian]]</small> | image = Platycephalichthys teeth detail.jpg | image_caption = Teeth of ''[[Platycephalichthys]]'', in [[CosmoCaixa Barcelona]] | taxon = Tristichopteridae | authority = [[Edward Drinker Cope|Cope]], [[1889 in paleontology|1889]] | subdivision_ranks = Genera | subdivision = See [[Tristichopteridae#Genera of Tristichopterids|below]] }} '''Tristichopteridae''' is a family of [[Tetrapodomorph|tetrapodomorphs]] from the Middle and Late [[Devonian]]. Some of them share some of the features of the [[Elpistostegalia|elpistostegalians]]. The most well-known is probably ''[[Eusthenopteron]]''. A classic notion is that ''Eusthenopteron'' was able to crawl onto land using its fins. However, no evidence believes this and is believed by many to be false. == Description == These fish were large, and some species could exceed three meters. The smallest forms (''[[Tristichopterus]]'') attained lengths of 30 cm, and the largest forms (''[[Hyneria]]'') could grow several meters long. The pelvis had long, tapering pubic branches that met in a cartilaginous symphysis. The ventral fins contained the [[femur]], [[Titian|tibia]], and [[fibula]]. The lobed pectoral fins were usually robust. Tristichopterids had large, flat heads with sharp [[teeth]]. == Taxonomy == * ''[[Cabonnichthys]]'' * ''[[Canningius]]'' * ''[[Edenopteron]]'' * ''[[Eusthenodon]]'' * ''[[Eusthenopteron]]'' * ''[[Heddleichthys]]'' * ''[[Hyneria]]'' * ''[[Jarvikina]]'' * ''[[Langlieria]]'' * ''[[Mandageria]]'' * ''[[Notorhizodon]]'' * ''[[Platycephalichthys]]'' * ''[[Tristichopterus]]'' == Some images == Here is a gallery of a few members of the Tristichopteridae: [[File:Eusthenodon DB15.jpg|center|thumb|''[[Eusthenodon]]'']] [[File:Hyneria (cropped) 2.jpg|center|thumb|''[[Hyneria]]'']] [[File:Edenopteron keithcrooki.tif|center|thumb|''[[Edenopteron]]'']] [[File:Eusthenopteron BW.jpg|center|t