Biology Forum Evolution Evolution tree…phylogeny—simple question

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    • #12599
      hmeworkuser
      Participant

      Hello i have been trying to write about phylogeny of following 4 organisms
      Snail , Fish, pig and dinosaur.

      Can someone help me what is the correct direction of evolution for these 4 organisms in phylogenetic tree of evolution? which came first and which came in end ..like that

      Thanks in advance

    • #96624
      hmeworkuser
      Participant

      kindly help me

    • #96625
      firechild
      Participant

      The correct order of evolution is snail, fish, dinosaur, pig. Do you need any more information such as timing of different evolutionary points?

    • #96626
      hmeworkuser
      Participant

      Thanks .Yes can you provide some more information on evolutionary periods, etc?

    • #96628
      Chroma
      Participant

      [ snail [ Fish [ Dinosaur + Pig ]]]

      If I recall correctly snails would have diverged from the other three close to the Cambrian period (~570 MYA, though likely before), and Dinosaurs arose in the Triassic (~250 MYA, sometime after) so fish would have to have diverged from the other chordates between 570 and 250 MYA… Pigs, being a modern mammal, would have come about sometime after the dinosaur extinction 65MYA… I’m sure someone else can give you a better answer (google/wikipedia is usually good) but this is a start…

    • #96634
      JackBean
      Participant
      quote hmeworkuser:

      kindly help me

      LOL, after 9 minutes? 😆

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