Lab 3

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Author:
lndsyfree
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272926
Filename:
Lab 3
Updated:
2014-05-08 11:14:35
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Description:
Prototheria, Theria, Metatheria, Eutheria
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  1. Prototheria
    Primitive subclass consisting of Order Monotremata
  2. Monotremata
    • Order in subclass Prototheria
    • Echidnas & platypus
    • oviparous
    • Pectoral girdle contains extra bones
    • No teeth in adults
  3. Tachyglossidae
    • Family in the order Monotremata
    • Subclass Prototheria
    • Echidnas
    • 1. Body covered w/ thickened spines
    • 2. premaxillae separated except at anterior ends (unlike platypus)
  4. Ornithorhynchidae
    • Family in the order Monotremata
    • Subclass Prototheria
    • Platypus
    • 1. premaxillae expanded laterally, separate anteriorly (unlike Echidnas)
  5. Theria
    • Subclass of the class Mammalia
    • Contains all Orders that are not within Prototheria
  6. Metatheria
    • Infraclass within subclass Theria
    • Contains cohorts Ameridelphia and Australidelphia
    • 1. Marsupial pouch
    • 2. Large alesphenoid forming part of auditory bulla
  7. Ameridelphia
    • Cohort in the Infraclass Metatheria
    • Consists of Order Didelphimorphia
  8. Australidelphia
    • Cohort in the Infraclass Metatheria
    • Consists of Orders Dasyuromorphia, Peramelemorphia, and Diprotodontia
  9. Didelphimorphia
    • Order in the Infraclass Metatheria
    • Consists of the Family Didelphidae
    • American opossums
    • 1. polydactylous
    • 2. polyptotodont
    • 3. Bulla relatively uninflated
  10. Didelphidae
    • Family in the Order Didelphimorphia
    • American opossums
    • 1. polydactylous
    • 2. polyprotodont
    • 3. Bulla uninflated
  11. Dasyuromorphia
    • Order in the Infraclass Metatheria
    • Consists of the¬†Family Dasyuridae
  12. Dasyuridae
    • Family in the Order Dasyuromorphia
    • Tasmanian devil
    • 1. polydactylous
    • 2. polyprotodont
    • 3. Lower incisions subequal in size, not procumbent
  13. Peramelemorphia
    • Order in the Infraclass Metatheria
    • Consists of the Family Peramelidae
    • Bandicoots
  14. Peramelidae
    • Family in the Order Peramelemorphia
    • Bandicoots
    • 1. polyprotodonty
    • 2. syndactyly
    • 3. Vestigial hallux
  15. Diprotodontia
    • Order in the Infraclass Metatheria
    • Consists of Families Phascolarctidae, Phalangeridae, Pseudocheiridae, and Macropodidae
    • 1. All families characterized by diprotodonty
  16. Phascolarctidae
    • Family in the Order Diprotodontia
    • koala
    • 1. 1st upper incisor larger than other two
    • 2. Molars squares, w/ crescentic ridges
  17. Phalangeridae
    • Family within the Order Diprotodontia
    • Cuscus, brush-tailed/scaly-tailed possum
    • 1. Well-developed hallux
    • 2. Last upper and lower premolar enlarged (above crowns)
  18. Psuedocheiridae
    • Family within in the Order Diprotodontia
    • Ringtail possums, greater glider
    • 1. Last upper and lower premolar NOT projecting above crowns
    • 2. Molars w/ triangular ridges
  19. Macropodidae
    • Family within the Order Diprotodontia
    • Kangaroos, wallabies
    • 1. Large paraoccipital process
  20. Eutheria
    Infraclass in the Subclass Theria
  21. Cingulata
    • Order within the Infraclass Eutheria
    • Consists of the Family Dasypodidae
    • Armadillos
  22. Dasypodidae
    • Family within the Order Cingulata
    • Armadillos
    • 1. Skull elongated, flattened, rostrum elongate
    • 2. Body covered with keratin scales
  23. Pilosa
    • Order within the Infraclass Eutheria
    • Sloths, anteaters
  24. Bradypodidae
    • Family within the Order Pilosa
    • Three-toed sloths
    • 1. Blocky skull, blunt snout
    • 2. All cheekteeth homodont
    • 3. Incomplete zygomatic arch
  25. Myrmecophagidae
    • Family within the Order Pilosa
    • anteaters
    • 1. No teeth
    • 2. Skull elongated; rostrum long, curving downward
  26. Pholidota
    • Order within the Infraclass Eutheria with the Subclass Theria
    • Containing Family Manidae
  27. Manidae
    • Family within the Order Pholidota within the Infraclass Euphoria with the Subclass Theria
    • Pangolins
    • 1. No teeth
    • 1. Pangolins shape
  28. 2-toed sloth
    • Megalonychidae
    • Order: Pilosa
    • Infraclass: Eutheria
  29. Rounded skull, peg-like cheekteeth
    • Bradypodidae
    • "3-toed sloth"
  30. Rounded skull, canine premolar
    • Megalonychidae
    • "2-toed sloth"

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