Evolution of tetrapods). These ancestral tetrapods had never left the water, and were thus primarily aquatic, like modern fishes. Secondary aquatic adaptations...
10 KB (1,094 words) - 17:04, 7 August 2024
evolution of tetrapods began about 400 million years ago in the Devonian Period with the earliest tetrapods evolved from lobe-finned fishes. Tetrapods (under...
67 KB (7,973 words) - 00:48, 14 August 2024
partly aquatic. However, most tetrapod species today are amniotes, most of which are terrestrial tetrapods whose branch evolved from earlier tetrapods early...
104 KB (10,592 words) - 09:21, 23 August 2024
fish, and weakly developed bones, which are seen in many other secondarily aquatic tetrapods. In 1940, paleontologists Alfred Romer and Llewellyn Ivor Price...
9 KB (892 words) - 15:44, 28 April 2024
Dactyly (section Aquatic tetrapods)
Polydactyly in early tetrapod aquatic animals, such as in Acanthostega gunnari (Jarvik 1952), one of an increasing number of genera of stem-tetrapods known from...
17 KB (1,932 words) - 20:00, 5 August 2024
includes finned and limbed tetrapods that are more closely related to living tetrapods than to living lungfishes." Tetrapods evolved from animals with...
8 KB (985 words) - 19:36, 9 June 2024
exclusive of other tetrapods. Instead, they consistute an evolutionary grade (a paraphyletic group), ancestral to living tetrapods such as lissamphibians...
68 KB (7,456 words) - 23:58, 22 August 2024
and rostrum of hupehsuchians have been compared to many other secondarily aquatic tetrapods such as plesiosaurs, whales, and the early marine bird Hesperornis...
24 KB (2,946 words) - 18:37, 29 November 2023
some tetrapods started to evolve towards a reptilian condition. Some of these tetrapods (e.g. Archeria, Eogyrinus) were elongate, eel-like aquatic forms...
28 KB (2,971 words) - 01:18, 19 August 2024
sarcopterygians, prototetrapods, aquatic stem tetrapods (or "fishapods"), amphibian true tetrapods, and amniote tetrapods. Many morphological changes occurred...
15 KB (1,973 words) - 14:34, 18 March 2024