29 mm), the lepidotrichia cover all of the fins, which does not happen until after metamorphosis in genera like Polyodon. This might indicate that Eusthenopteron developed directly, with the hatchling already attaining the adult's general body form (Cote et al., 2002). See also Gogonasus Tiktaalik – an even more tetrapod-like sarcopterygian References External links https://web.archive.org/web/20060313170715/http://www.palaeos.com/Vertebrates/Units/140Sarcopterygii/140.860.html Tristichopterids Extinct animals of North America Prehistoric lobe-finned fish genera Devonian bony fish Late Devonian animals Late Devonian fish Transitional fossils