2nd Quiz

History of Life on Earth 

  1. Hadeon (Eon)

  1. Earth formed

  2. Moon is formed

  1. Archaean (Eon)

    1. First Prokaryotes

      1. First Archaea

      2. First Bacteria

    2. First Cyanobacteria

  2. Proterozoic (Eon)

    1. First Eukaryotes

      1. First Protista

  3. Ediacaran (Period) - First animals

    1. First Porifera - sponges

    2. First Cnidaria - jellyfish

  4. Phanerozoic (Eon)

    1. Paleozoic (Era)

      1. Cambrian (Period)

        1. First Platyhelminthes - flatworms

        2. First Mollusca - mollusks

        3. First Annelida - segmented worms

        4. First Arthropoda - arthropods

        5. First Echinodermata - echinoderms

        6. First Chordata - chordates

      2. Ordovicians (Period)

        1. First Fungi

        2. First non vascular plants

      3. Silurian (Period)

        1. First early vascular plants

        2. First arthropods on land - millipedes, arachnids

      4. Devonian (Period)

        1. First Chondrichthyes - sharks

        2. First Osteichthyes - bony fish

        3. First Insects

        4. First Amphibia 

        5. First Pteridophyta - true ferns

      5. Carboniferous (Period)

        1. First Gymnosperms - conifers

        2. First reptiles

      6. Permian (Period)

        1. First Cycadophyta - cycads 

        2. First Ginkgophyta - ginkos 

    2. Mesozoic (Era) 

      1. Triassic (Period)

        1. First DinO

        2. First mammalia

      2. Cretaceous (Period)

        1. First Angiosperms - flowering plants

        2. First Aves - birds

    3. Cenozoic (Era)

      1. Paleogene (Period)

        1. First primata

      2. Neogene (Period)

        1. First hominidae

      3. Quaternary (Period)

        1. Pleistocene (Epoch) - Ice Age

          1. First Genus Homo

        2. Holocene (Epoch) - Modern History





Hierarchical Classification: Group organisms into categories


  1. Domain: Eukarya

  2. Kingdom: Animalia

  3. Phylum: chordata

  4. Class: Mammalia

  5. Order: Primata

  6. Family: Hominidae

  7. Genus: Homo

  8. species: sapiens