amniotes
TRANSCRIPT
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2 Locomoción
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2.9 Amniota
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Amniota 2.9
Presencia de Amnios →
membranas especiales
alrededor del feto que lo
protegen y lo alimentan ya
sea en los huevos o en el
útero
Evolucionan a partir de
anfibios tetrápodos
terrestres.
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Amniota 2.9
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Amniota 2.9
Plano corporal, tetrápodo, con cada extremidad
formada por un quiridio pendáctilo.
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Amniota 2.9
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Amniota 2.9
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Amniota 2.9
Diápsida
Anapsida
Sinapsida
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Amniota: anápsida 2.9
Tortugas y parientes. Se observan
adaptaciones del quirido generando aletas.
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Amniota: diapsida 2.9
Reptiles primitivos
Ictiosaurios
Plesiosaurios
Lepidosaurios
Arcosaurios
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Amniota: diápsida: ictiosaurios 2.9
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Amniota: diápsida: ictiosaurios 2.9
Utatsusaurio
Mixosaurio
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Amniota: diápsida: ictiosaurios 2.9
Grippia
Stenopterigius
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Amniota: diápsida: ictiosaurios 2.9
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Amniota: diápsida: plesiosaurios 2.9
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Amniota: diápsida: plesiosaurios 2.9
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Amniota: diápsida: plesiosaurios 2.9
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Amniota: diápsida: plesiosaurios 2.9
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Amniota: diápsida: plesiosaurios 2.9
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Amniota: diápsida: lepidosaurios 2.9
El grupo contiene la mayoría de los lagartos,
las serpientes y a los mosasaurios
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Amniota: diápsida:lepidosaurios:serpientes 2.9
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Amniota: diápsida:lepidosaurios:serpientes 2.9
Perdida de los quiridios, movimiento muscular
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Amniota: diápsida:lepidosaurios:serpientes 2.9
Perdida de los quiridios, movimiento muscular
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Amniota: diápsida: lepidosaurios:mosasaurios 2.9
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Amniota: diápsida: lepidosaurios:mosasaurios 2.9
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Amniota: diápsida: lepidosaurios:mosasaurios 2.9
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Amniota: diápsida: lepidosaurios:mosasaurios 2.9
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Amniota: diápsida: lepidosaurios:mosasaurios 2.9
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Amniota: diápsida: lepidosaurios:mosasaurios 2.9
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Amniota: diápsida: lepidosaurios:mosasaurios 2.9
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Amniota: diápsida: lepidosaurios:mosasaurios 2.9
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Amniota: diápsida: lepidosaurios:mosasaurios 2.9
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Amniota: diapsida: arcosaurios 2.9
arcosaurios primitivos
Cocodrilos
Dinosaurios y aves
Otros arcosaurios
Pterosaurios
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Amniota: diapsida: arcosaurios:Pterosaurios 2.9
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Amniota: diapsida: arcosaurios:Pterosaurios 2.9
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Amniota: diapsida: arcosaurios:Pterosaurios 2.9
Unas de las primeras
alas de hueso de los
tetrapodos.
Los quiridios
superiores se
modifican:
Extensión y fusión de los
tarsos
Fusión de los carpianos
Extensión extrema del
meñique
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Amniota: diapsida: arcosaurios:Pterosaurios 2.9
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Amniota: diapsida: arcosaurios:Pterosaurios 2.9
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Amniota: diapsida: arcosaurios:Pterosaurios 2.9
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Amniota: diapsida: arcosaurios:Pterosaurios 2.9
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Amniota: diapsida: arcosaurios:dinosaurios 2.9
Eoraptor
Todos los dinosaurios primitivos son
BIPEDOS, algunos descendientes regresaron
a caminar en cuatro patas, otros no.
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Amniota: diapsida: arcosaurios:dinosaurios 2.9
Posturas, reptiles vs dinosaurios
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Amniota: diapsida: arcosaurios:dinosaurios 2.9
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Amniota: diapsida: arcosaurios:dinosaurios 2.9
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Amniota: diapsida: arcosaurios:dinosaurios 2.9
En los dinosaurios existe un grupo especial, llamado
maniraptores, en estos, los quiridios superiores se
simplifican, se pierden dos dedos, y los tres que
quedan tienden fusionarse.
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Amniota: diapsida: arcosaurios:dinosaurios 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: maniraptores
2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: diapsida: arcosaurios:dinosaurios: 2.9
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Amniota: Sinapsida 2.9
Sinapsidos primitivos
Monotrema
Marsupiales
Terapsidos primitivos
Euterios
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Amniota: Sinapsida, Locomoción. 2.9
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2.9
Posturas, reptiles vs terapsidos
Amniota: Sinapsida, Locomoción.
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Amniota: Sinapsida 2.9
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2.9 Amniota: Sinapsida:Terapsida: Monotremas
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2.9 Amniota: Sinapsida:Terapsida: Monotremas
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Amniota: Sinapsida:Terapsida: Monotremas 2.9
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Amniota: Sinapsida: Terapsida: Marsupiales 2.9
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Amniota: Sinapsida: terapsida: Euteria
2.9
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Amniota: Sinapsida: terapsida: Euteria: Sirenidos
2.9
Manatí
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Amniota: Sinapsida: terapsida: Euteria: cetáceos
2.9
Cetáceos, rodocetus,
ambulocetus
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Amniota: Sinapsida: terapsida: Euteria: cetáceos
2.9
Cetáceos, basilocetus
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Amniota: Sinapsida: terapsida: Euteria: cetáceos
2.9
Cetáceos, delfines
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Amniota: Sinapsida: terapsida: Euteria: cetáceos
2.9
Cetáceos, ballenas
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Amniota: Sinapsida: terapsida: Euteria:carnivora: phocoideae
2.9
Focas
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Amniota: Sinapsida: terapsida: Euteria:dermoptera y chiroptera
2.9
Murciélagos y ardillas voladoras placentadas
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Amniota: Sinapsida: terapsida: Euteria:dermoptera y chiroptera
2.9
Murciélagos y ardillas voladoras placentadas
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Amniota: Sinapsida: terapsida: Euteria:primates: Catarhinii: hominidae: Homo
2.9
Bipedestación, cambio en la forma de la cadera y
de la posición de la columna