Lab 2 Powerpoimt Flashcards
What is the infraclass designation for marsupials?
Metatheria
What is the term for the pouch found in marsupials?
Marsupium
How many orders of marsupials are there?
7 Marsupial Orders
What is the base dental formula for metatherians?
Polyprotodont
How are Metatherians different from Eutherians?
- Fenestrated Palate
- Angular process of the Dentary bent medially
- Brain case is smaller
- Both Jugal and Squamosal articulate with Dentary
- Possess an epipubic bone
- Typically have more teeth
What is the characteristic of a Syndactylus?
2 hind fingers share the same finger sheath, fused at skeletal element
What does the term Didactylus refer to?
Fingers are skeletally separate in their own finger sheath
Which order is known as the New World Opossums?
Didelphimorphia
What is the characteristic of Didelphidae?
Didactylous and have opposable thumb = pollex
Which order includes carnivorous marsupials?
Dasyuromorphia
What family within Dasyuromorphia is known for the Tasmanian Wolf?
Thylacinidae
What is the common name for the family Macropodidae?
Kangaroos and Wallabies
What is a significant feature of the family Vombatidae?
Nocturnal and herbivorous
Fill in the blank: The order that contains Bandicoots and Bilbies is _______.
Peramelemorphia
What is the gestation period for Peramelidae?
12.5 day gestation period
What characterizes the family Petauridae?
Includes gliders and striped possums
What is a key adaptation of marsupial moles in the order Notoryctemorphia?
Only completely fossorial marsupial
Which order is represented by the Shrew/Rat Opossum?
Paucituberculata
What is the primary diet of marsupials in the order Diprotodontia?
Primarily herbivorous
What distinguishes the family Phascolarctidae?
Monotypic, common name is Koala
True or False: All marsupials have a marsupium.
False
What adaptation do sugar gliders possess?
Prehensile tails
