Amniotes are tetrapod vertebrate animals belonging to the clade Amniota, a large group that comprises the vast majority of living terrestrial and semiaquatic...
48 KB (3,794 words) - 03:11, 20 July 2024
Reptiliomorpha (section Origin of amniotes)
Pan-Amniota) is a clade containing the amniotes and those tetrapods that share a more recent common ancestor with amniotes than with living amphibians (lissamphibians)...
28 KB (2,971 words) - 01:18, 19 August 2024
(/tɛˈtræpədə/). Tetrapods include all extant and extinct amphibians and amniotes, with the latter in turn evolving into two major clades, the sauropsids...
104 KB (10,592 words) - 09:21, 23 August 2024
Egg (section Amniote eggs and embryos)
Like amphibians, amniotes are air-breathing vertebrates, but they have complex eggs or embryos, including an amniotic membrane. Amniotes include reptiles...
42 KB (4,715 words) - 23:29, 22 August 2024
advanced reptiliomorphs (transitional between "amphibians" sensu lato and amniotes) positioned close to, but outside of the clade Amniota, though some recent...
12 KB (1,207 words) - 17:10, 25 March 2024
Sauropsida (Greek for "lizard faces") is a clade of amniotes, broadly equivalent to the class Reptilia, though typically used in a broader sense to also...
30 KB (2,759 words) - 21:45, 2 September 2024
Others prioritize the clade Sauropsida, which typically refers to all amniotes more closely related to modern reptiles than to mammals. The earliest known...
138 KB (14,818 words) - 06:18, 30 August 2024
The primitive streak is a structure that forms in the early embryo in amniotes. In amphibians, the equivalent structure is the blastopore. During early...
23 KB (2,803 words) - 21:33, 7 April 2024
conditions. Amniotes, however, prospered due to specific key adaptations. One of the greatest evolutionary innovations of the Carboniferous was the amniote egg...
14 KB (1,149 words) - 04:52, 11 August 2024
advanced labyrinthodonts. The oldest known animal that may have been an amniote, a reptile rather than an amphibian, is Casineria (though it has also been...
30 KB (3,190 words) - 17:18, 19 August 2024