EVOLUTION Flashcards
(24 cards)
HOW MANY TOES ON THE FRONT FEET OF EOHIPPUS
4
SIZE AS BIG AS CAT AND DOG
EOHIPPUS
DAWN HORSE 60 million years ago
EOHIPPUS
MIDDLE HORSE
MESOHIPPUS
OLIGOSCENE 40 million years ago
MESOHIPPUS
INCHES OF MESOHIPPUS SHOULDER
24
BACK LESS ARCHED FACE SNOUT AND NECK LONGER
MESOHIPPUS
SPOT GRADUALLY REDUCED
MESOHIPPUS
6 grinding cheek teeth with single premolar in front for grinding down tough vegetation
MESOHIPPUS
each foot has 3 toes, 1st and 5th remained but small and not used for walking
MESOHIPPUS
3rd toe stronger and longer than the outer ones, the 4th diminished to a vestigial hub
MESOHIPPUS
3rd natira lumiit 4th and 2nd tooth 1st and 5th nawala
MESOHIPPUS
RUMINANT OR CUD CHEWING HORSE
MERYCHIPPUS
middle of miocene epoch about 30 mya
MERYCHIPPUS
EFFECTIVE GRAZER AND RUNNER
MERYCHIPPUS
wider molar for crunching hard grasses
MERYCHIPPUS
HINDLEGS RELATIVELY SHORT
MERYCHIPPUS
GRINDING USING WIDER MOLAR NOT UP AND DOWN
MERYCHIPPUS
3 toes on each foot, side toes lmost useless but center was long and strong and ended in urved hoof which bore all o the animals weight
MERYCHIPPUS
ICE AGE / PLIOCENE PERIOD- 10 MYA
PLIOHIPPUS
teeth strongly curved but became better fitted for editing grass
pliohippus
LOOK LIKE MODERN HORSE ; BIGGER THAN ANCESTORS
pliohippus
1st single toed horse
PLIOHIPPUS
1 mya
equus