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41 Cards in this Set

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Name and characterize the living orders of metatherians
1. Paucituberculata
2. Didelphimorphia
3. Microbiotheria
4. Dasyuromorphia (primitive Australian marsups)
5. Notoryctemorphia
6. Peramelemorphia
7. Diprotodontia
Characterize Dasyuromorphia and Microbiotheria
Dasyuromorphia : Dasyuroid marsups and marsup carnivores

Microbiotheria: Monito del Monte
Characterize Paucituberculata and Didelphimorphia
Paucituberculata: Shrew opossum

Didelphimorphia: American marsup
Characterize Notoryctemorphia, Peramelemorphia, and Diprotodontia
Notoryctemorphia: marsupial moles

Peramelemorphia: Bandicoots
and bilbies


Diprotodontia: Kangaroos, possums, wallabies, and relatives
How was New Guinea formed and what affect did it's formation have on the environment of Australia?
New Guinea rose up when Australia crashed into SE Asia ~15 my ago. It's rise created a rain shadow affecting northern and central Australia. The climate changed and created arid regions in these areas of Australia
Of the families of mammals we have discussed in class, which occur in New Guinea?
Tasmanian Wolf, some Australian Bandicoots (ex Spiny bandicoot),
Identify Myrmecobidae
Numbat or banded anteater
Identify Dasyuridae
Marupsial; mice, cats and the Tasmanian devil
What families of Monotremata and Marsupials contain taxa that are adapted to feed on ants and termites?
Monotremata:
Family Family Tachyglossidae

Metatheria:
1. Family Dasyuridae
2. Family Myrmecobius
3. Pygmy-possums
4. Family Talpidae
5. Family Soricidae
Identify a marsupial tt's an arboreal folivore and identify its adaptations and behaviors associated w/this mode of feeding
Koala:
-Sedentary
-Feeds only on eucalyptus and box tree leaves (and mistletoe)
-spends all its times feeding and sleeping
-digestion occurs during times of inactivity
-Hallux
Diagram the upper and molar tribosphenic molars
..
Name, characterize, and identify the zoogeographic region of each of the living ordrs of metatherians and monotremata
..
When did the opossum first come to VT?
1921
Name and characterize the families of the order Insectivora tt occur in the US
1. Family Talpidae:
-Desmans, moles, and
relatives
-long narrow rostrum

2. Family Soricidae (shrews)
-No zygomatic arch
-No auditory bullae
-No postorbital process
List the families and genera in each family of Insectivora that occur in VT
1. Family Soricidae (shrews)
a. Masked shrew
b. water "
c. Smoky "
d. Long-tailed shrew
e. Pygmy shrew
f. Northern short-tailed shrew
2. Family Talpidae
a. Hairy-tailed mole
2. Star-nosed mole
Identify Dryolestoides
First to have Tribosphenic molar and angular process of dentary
Identify Triconodont
-has a heterodont dentition
-cheek teeth have 3 cups, molars are triconodont
Identify Symmetrodonta
Molars not yet Tribosphenic: 3 cups but no talonid basin (shaped like an isoceles triangle)
Identify Thecodont
Teeth set in a socket
ex: humans
Identify Acrodont
Teeth sit on top of gums
Identify Alveolus
Socket tooth sits in
Identify Prototheria
Contains the monotremate but no the metatherians or eutherians
Identify Docodonts
Mesozoic mammals w/unclear phylogenetic placement
-heterodont dentition w/quadrate molars w/6 cusps
Identify Tarsipedidae
Honey possum or noolbender
Identify Acrobatidae
Feather-tailed gliders
Identify Thylacomyidae
Bilbies or rabbit-eared bandicoots
Identify Burramyidae
Pygmy possums
Identify Phascolarctidae
Koala
Identify Macropodidae
Kangaroos, wallaroos, wallabies, and pademelons
Identify Thylacinidae
Tasmanian wolf
Identify Cynocephalidae
Culugos and flying lemurs
Identify Dasypodidae
armadillos
Identify Chorio-allantonic placenta
the placenta the embeds deeply into uterin wall and is found in eutherians
Identify Chorio-vitelline placenta
Primitive placenta; found in metatherians
Identify Caenolestidae
shrew opossum?
Identify hypsodont
High crowned teeth
Identify brachyodont
Low crowned teeth
During wt geological time period and where did each have its origin; Metatherians, Multituberculata, Monotremata, Eutherians, Dasyuromorphia
1. Metatherians= N.Am Cretaceous
2. Multituberc=widespread, Cret.
3. Monotremata=Australia, Cret
4. Eutheria=Asia, Cretac
5. Dasyuromorph=Australia, Eocene??
What is a precocial young? An altricial?
precocial= well developed at birth
a. Eyes open
b. Able to move about within a short period of time after birth

altricial:Young helpless and poorly developed at birth
a. Eyes closed
b. Naked, hairless to fully but lightly furred
c. Ears folded closed
What's reaxin
cause reabsorption of ligaments of pubic symphysis in preparation forbirth
What's oxytocin?
Causes contractions of the uterus during birth