History of the Horse

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Author:
alyssau12
ID:
251795
Filename:
History of the Horse
Updated:
2013-12-08 19:59:22
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equine Final
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equine final
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  1. When was the Eocene period?
    50 million years ago
  2. What species was alive during the eocene period?
    Eohippus or "dawn" horse
  3. How big was the eohippus?
    • 15" tall
    • about the size of a dog
    • roached back
  4. What kind of teeth did the eohippus have?
    brachyodant
  5. What kind of toes does the eohippus have?
    • front: 4 functional, 1 splint
    • back: 3 functional, 1 splint
  6. What kind of habitat did the eohippus live in?
    • swampy
    • very wet
  7. What kind of teeth does a brachyodant have?
    • low-crowned teeth
    • long and narrow jaw
  8. What species was alive during the oligocene period?
    mesohippus
  9. When was the oligocene period?
    35 million years ago
  10. What was the mesohippus body structure like?
    • more upright in forelegs
    • slightly taller
  11. What kind of habitat did the mesohippus live in?
    • swampy
    • very wet
  12. What kind of toes does the mesohippus have?
    • 3 functional front and hind
    • 1 splint on front
  13. What kind of teeth does the mesohippus have?
    brachyodant
  14. When was the miocene period?
    15 million years ago
  15. What species lived in the miocene period?
    merychippus
  16. What was the merychippus body structure like?
    • taller, more upright
    • longer legs
    • burro size 14 hands
  17. What kind of habitat did the merychippus live in?
    plains/grassland
  18. What kind of toes did the merychippus have?
    3 toes; 1 weight-bearing, 2 non
  19. What kind of teeth did the merychippus have?
    hypsodant
  20. What kind of teeth do hypsodants have?
    high-crowned teeth, continually erupt
  21. When was the pliohippus period?
    18 million years ago
  22. What was the pliohippus like?
    • about 40inches in height
    • non-functional bones turn into splint bones
  23. What kind of habitat did the pliohippus live in?
    grasslands
  24. What kind of toes did the pliohippus have?
    1st true one-toed horse
  25. What kind of teeth did the pliohippus have?
    hypsodant
  26. When did the Equus exist?
    12,000 years ago to present
  27. What kind of characteristics are unique to donkeys?
    • long ears
    • long standing heat
    • switch for tail
    • no forelock
    • narrow feet
    • small
  28. What is special about the Przewalski horse?
    • last remaining "wild horse"
    • erect mane
    • thick hoof structure
    • dun factor
    • 66 chromosomes
    • native to Mongolia
  29. What class are one-toed ungulates in?
    Perissodactyla
  30. What animals are in the Perissodactyla class?
    • rhino: one functional toe
    • tapir: similar to dawn horse
    • horse

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