Tiktaalik is estimated to have had a total length of 1.25–2.75 metres (4.1–9.0 ft) on the basis of various specimens. [2] Unearthed in Arctic Canada, Tiktaalik is a non-tetrapod member of Osteichthyes (bony fish), complete with scales and gills—but it has a triangular, flattened head and unusual, cleaver-shaped fins.

2024年5月27日 · Description & Size. According to fossil records, Tiktaalik measured between 4.1 and 9 feet long. It possessed a flat, triangle-shaped skull like the head of a crocodile. The back of the skull featured notches that likely contained spiracles for breathing air. These notches indicate that Tiktaalik had both lungs and gills.

提塔利克鱼（学名：Tiktaalik）是一种已灭绝的早期鱼类，生存于泥盆纪晚期，拥有许多类似两栖类的特征，一些保存良好的化石于2004年在加拿大北部的埃尔斯米尔岛被发现。

Tiktaalik roseae, an extinct fishlike aquatic animal that lived about 380–385 million years ago (during the earliest late Devonian Period) and was a very close relative of the direct ancestors of tetrapods (four-legged land vertebrates). The genus name, Tiktaalik, comes from the …

Tiktaalik roseae is an early "fishopod" that is confirmed to be coming to Prehistoric Kingdom as a Mini-Exhibit animal. Tiktaalik in-game is a moderately sized fishlike creature with features giving away its relation to later landlubbing tetrapods such as its four limbs, neck and ability to...

English: Size comparison of the Devonian sarcopterygian Tiktaalik, within unknown regions based on the related Elpisostege. The silhouette was scaled to the largest mandible (31 centimeters (12 in) long), falling within the range of published estimates (1.25–2.75 meters (4.1–9.0 ft)).

2024年2月6日 · Tiktaalik is a genus of lobe-finned (sarcopterygian) fish from the Devonian Period found on Ellesmere Island, Nunavut, in Canada’s Arctic Archipelago. A single species is known of Tiktaalik, T. roseae, which lived approximately 385 million years ago. The species was named in 2006 in two articles that described several articulated specimens.

Tiktaalik lived about 12 million years before the first tetrapods, which are approximately 363 million years old. So, the existence of tetrapod features in a fish like Tiktaalik is significant, because it marks the earliest appearance of these novel features in the fossil record.

Tiktaalik was a large fish: the largest known fossils have an estimated length of 2.75 m (9.02 feet), with the longest lower jaws reaching a length of 31 centimetres (1.0 ft). The skull of Tiktaalik was low and flat, more similar in shape to that of a crocodile than most fish.