Chapter 9 Eco Predation

Artiodactyla

Deer, Cattle, Pigs, Sheep

Even number of toes (2 or 4)

Skull for one suborder

Ruminantia

No upper incisors

Name two Artiodactyla features

Carnivora

Dogs, wolves, foxes,

cats, bears, otters,

weasels

Carnassial teeth

- 4th premolar on maxilla & 1st

molar in mandible

- Have knife like edge

- Adapted for shearing flesh

Name two Carnivora features

Eulipotyphla

Shrew, moles,

hedgehogs

Sharp pointed teeth

Molars have sharp cutting edges

No diastema (gap between teeth)

Name two Eulipotyphla features

Lagomorpha

Hares, rabbits, pikas -

2 pairs of upper incisors

2nd pair minute & directly behind first

6 pairs of upper cheek teeth

Maxillary portion of rostrum

fenestrated

Name two Lagomorpha features

Rodentia

Beechey's Ground Squirrel

Western Gray Squirrel

Botta's Pocket Gopher

California Meadow Vole

Deer mouse

Harvest Mouse

House Mouse

Large diastema separates upper &

lower incisor from cheek teeth

(premolars & molars)

No canine teeth

Name two Rodentia features

Spermophilus beecheyi, Beechey’s Ground Squirrel

Thomomys bottae, Botta’s Pocket Gopher

Microtus californicus, California Meadow Vole

Peromyscus, Deer mouse

Reithrodontomys

megalotis, Harvest Mouse

Mus musculus, House Mouse

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