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Eunotosaurus ( Latin: Stout-backed lizard) is an extinct genus of amniote, possibly a close relative of turtles. Eunotosaurus lived in the late Middle Permian ( Capitanian stage) and fossils can be found in the Karoo Supergroup of South Africa. Eunotosaurus resided in the swamps of what is now southern Africa. [1]
Amniotic fluid is in the amniotic sac. It is generated from maternal plasma, and passes through the fetal membranes by osmotic and hydrostatic forces. When fetal kidneys begin to function around week 16, fetal urine also contributes to the fluid. [1] In earlier times, it was believed that the amniotic fluid was composed entirely of excreted ...
amniote \am.njɔt\ masculin (Zoologie) Animal (vertébré tétrapode) dont l’embryon et le fœtus sont protégés par un amnios et une allantoïde.Ainsi, chez les amniotes, la colonne vertébrale est une structure osseuse clairement segmentée, et les gènes Hox jouent un rôle essentiel dans le contrôle génétique de l’identité des vertèbres, cervicales, thoraciques, lombaires ou ...
Amniota (dari bahasa Yunani ἀμνίον amnion, "membran yang mengelilingi janin", sebelumnya "mangkuk di mana darah hewan kurban tertangkap", dari ἀμνός amnos, "domba" [5]) adalah klad vertebrata tetrapoda yang terdiri dari Synapsida (termasuk mamalia) dan Sauropsida (termasuk reptil dan burung) dan yang ber telur di darat atau ...
Rhychocephalia. Squamata. Crocodylia. Aves. Die Amniota is 'n groep hoër werweldiere, wat deur 'n amnion, 'n vlies wat die embrio beskerm, gekenmerk word.
The amnion is a feature of the vertebrate clade Amniota, which includes reptiles, birds, and mammals. Amphibians and fish lack the amnion and thus are anamniotes (non-amniotes). The amnion stems from the extra-embryonic somatic mesoderm on the outer side and the extra-embryonic ectoderm or trophoblast on the inner side. [1]
Westlothiana lizziae. Smithson and Rolfe, 1990. Westlothiana ("animal from West Lothian") is a genus of reptile -like tetrapod that lived about 338 million years ago during the latest part of the Viséan age of the Carboniferous. The genus is known from a single species, Westlothiana lizziae.
