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Leporidae - PowerPoint PPT Presentation


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RODENTIA Wombat Aye-aye Leporidae North American Rodent Families Protrogomorphous Aplodontidae Hystricomorphous Erethrizontidae Sciuromorphous Sciuridae Castoridae Myomorphous Heteromyidae Geomyidae Muridae Dipodidae Aplodontidae Molars with spines Cranium flattened D-V

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Presentation Transcript
slide1

RODENTIA

Wombat

Aye-aye

Leporidae

slide4

North American Rodent Families

  • Protrogomorphous
    • Aplodontidae
  • Hystricomorphous
    • Erethrizontidae
  • Sciuromorphous
    • Sciuridae
    • Castoridae
  • Myomorphous
    • Heteromyidae
    • Geomyidae
    • Muridae
    • Dipodidae
slide5

Aplodontidae

  • Molars with spines
  • Cranium flattened D-V
  • Auditory bullae flask shaped
  • Interorbital region narrow
  • Sciurognathus
  • Protogomorphous
slide6

Aplodontidae

Aplodontia rufa

MOUNTAIN BEAVER

slide7

Erethizontidae

Erethizon dorsatum

PORCUPINE

Infraorbital foramen round and larger than foramen magnum

slide8

Castoridae

Castor fiber

BEAVER

slide9

Skull with prominent postorbital process

+

Four lower molariform teeth

slide10

Glaucomys

Sciuridae

Tamiasciurus

Sciurus

Tamias

slide11

Sciuridae

Marmota

Spermophilus

slide12

Heteromyidae

Infraorbital foramen connected through opening on rostrum

Geomyidae

Infraorbital foramen NOT connected through opening on rostrum

slide13

Infraorbital foramen on or near zygomatic plate

X

Infraorbital foramen on side of rostrum, anterior to

zygomatic plate

slide14

Heteromyidae

KANGAROO RATS, KANGAROO MICE, POCKET MICE

Large auditory bullae

Wide zygomatic arch

Small auditory bullae

Narrow zygomatic arch

Large auditory bullae

Narrow zygomatic arch

Pocket mouse Kangaroo rat Kangaroo mouse

slide15

Heteromyidae

KANGAROO RATS, KANGAROO MICE, POCKET MICE

Perognathus

Microdipodops

Dipodomys

slide16

Geomyidae

POCKET GOPHERS

slide17

Dipodidae

Four upper, three lower cheekteeth

Zapus

JUMPING MOUSE

slide18

Muridae

1/1 0/0 0/0 3/3

Murinae

Arvicolinae

Sigmodontinae

slide19

Arvicolinae

Ondatra

Microtus sp.

VOLE

Lemniscus

SAGEBRUSH VOLE

slide20

Sigmodontinae

Peromyscus sp.

DEER MOUSE

Onychomys sp.

GRASSHOPPER MOUSE

Neotoma cinerea

WOODRAT

Reithrodontomys sp.

HARVEST MOUSE