Intro to Ungulates Flashcards
one traditional grouping of mammals,
now recognized as a paraphyletic grouping
Ungulata
from Latin “ungula” (meaning hoof)
Ungulate
Two major groups of living hoofed mammals:
• Artiodactyla (cloven-hooved mammals)
• Perissodactyla (odd-toed mammals)
• Live in grasslands and savannahs
• Have evolved features that are adaptive for life on
open grasslands
Ungulates
• The earliest known ungulate, a small insectivore-like
animal with teeth slightly adapted for grinding.
Protungulatum
Order Artiodactyla
• Suborder Suina:
• Suborder Tylopoda:
• Suborder Ruminantia:
pigs, peccaries & hippopotami: primitive
artiodactyls
Suborder Suina
camels & llamas: intermediate
artiodactyls
Suborder Tylopoda
cattle, antelopes, deer and giraffes:
advanced artiodactyls
Suborder Ruminantia:
has a so-called ‘double
pulley’ whereby both the connecting surfaces allow a rolling
action giving greater freedom of movement in the ankle. Other
ungulates lack this arrangement
the astragalus (tarsal or ankle bone)
The history of the horse family, _______, began
during the Eocene Epoch, which lasted from about 56 million to 33.9 million years ago.
Equidae
55 Million Years Ago
EOCENE ERA
Eohippus
35 Million Years Ago
OLIGOCENE ER
Mesohippus
30 Million Years Ago
OLIGOCENE ERA
Miohippus
20 Million Years Ago
MIOCENE ERA
Mercychippus