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When did the first land animals evplve?

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When did the first land animals evplve?

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  1. The first land animals were invertebrates, e.g. cockroaches have been around for 200 million years. Other invertebrates moved to land before that, maybe 350 or more million years ago. The first vertebrates on land were amphibians. Reptiles evolved from amphibians 230 million years ago. Sweet Girl is wrong. Dinosaurs came much later than amphibians and invertebrates. The first dinosaurs were in the Triassic period and appeared nearl the time the cockroach did.


  2. The first land animals appeared some time during the Paleozoic era (which lasted from 545 million year ago to 250 million years ago).  I'm not sure which period within that era saw the first land animals though.  The Devonian period (410-355 million years ago) gives us an example of some of the earliest tetrapods (four legged animals) so we know here is around when sea animals first started to evolve towards land life.  We also see the appearance of wingless insects and spiders in the fossil record.

    Edit:  A note on snakes.  Snakes are quite new animals.  They evolved from lizards.  One of the earliest snakes known comes from the early Cretaceous period (130 million years ago).  Basically, as far as we know, snakes are quite new in the grand scheme of life, appearing millions of years later than mammals and possibly even birds.

  3. i think they're dinosaurs, so about 410 to 360 million years ago. i no some animals were before the t rex, but turtles and alligators aren't LAND animals, so it's probably dinosaurs

  4. i think that the first land animal is snake.

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