76 terms

Mammalogy - Exam 1

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Notochord
Dorsal Hollow Nerve Cord
Pharyngeal Clefts
Post-anal Tail
Characteristics of Chordates
Vertebrae
Segmented Body
Advanced Cephalization
True Endoskeleton
Characteristics of Vertebrates
Monotremata
Marsupialia
Placentalia
Major Groups of Mammals
Hair
Mammary glands
4 chambered heart
Heterodont
Diphyodont
Endotherm
Characteristics of Mammals
Poikilotherm
An organism that cannot regulate its body temperature except by behavioral means such as basking or burrowing. It fluctuates.
Homeotherm
An organism that maintains its body temperature at a constant level, usually above that of the environment, by its metabolic activity.
Amniote Ancestors
Very reptilian; undifferentiated teeth, multiple bones in jaw and 1 ear bone.
Synapsids and Therapsids
First mammals
Dimetradon
Not a dinosaur but a synapsid; "mammal-like reptile"
Morganucodon
First appeared around 205 mya.
10-13 inches in length
Ate insects and other small animals
Shrew-like
Small, insectivorous and nocturnal
Mammals during the age of dinosaurs
Small size
Insectivorous
Burrowing
Nocturnal
Why did all major groups of mammals survive the asteroid?
Monotremes
Most "primitive"
Lay eggs
No nipples
Placentals
Also called Eutheris.
Most evolved
Have placenta
Live birth
Have nipples
Marsupials
In between placentals and monotremes.
No eggs or placenta
Have nipples.
Afrotheria, Xenarthra, Boreoeutheria
Major clades of Eutheria
Afrosoricida, Macroscelidea, Tubulidentata, Hydracoidea, Proboscidea, Sirenia
Orders of Afrotheria
Afrosoricida
Golden Moles, tenrecs
Macroscelidea
Elephant shrews
Tubulidentata
Aardvark
Hydracoidea
Hyraxes
Proboscidea
Elephants
Sirenia
Manatees, Dugongs
Cingulata and Pilosa
Orders of Xenarthra
Cingulata
Armadillos
Pilosa
Anteaters and sloths
Euarchontoglires and Laurasiatheria
Superorders of Boreoeutheria
Euarchonta and Gilres
Euarchontoglires includes
Scandentia, Dermoptera and Primates
Orders of Euarchonta
Scandentia
Tree Shrews
Dermoptera
Colugos
Primates
Lemurs, monkeys, apes
Lagomorpha and Rodentia
Orders of Gilres
Lagomorpha
Rabbits, Hares, pika
Rodentia
Rodents
Erinaceomorpha, Soricomorpha, Pholidota, Chiroptera, Cetartiodactyla, Perissodactyla, Carnivora
Orders of Laurasiatheria
Erinaceomorpha
Hedgehogs, gymnures, moonrats
Soricomorpha
Shrews, moles, selenodons
Pholidota
pangolins
Chiroptera
Bats
Cetartiodactyla
Whales, even-toed ungulates
Perissodactyla
Odd-toed ungulates
Carnivora
Carnivores
Tachyglossidae and Ornithorhynchidae
Families of Monotremata
Tachyglossidae
Echidnas
Ornithorhynchidae
Platypus
Didelphimorphia, Paucituberculata, Microbiotheria, Dasyuromorphia, Peramelemorphia, Notoryctemorphia, Diprotodontia
Orders of Metatheria
Didelphimorphia and Paucituberculata
Ameridelphia marsupials
Microbiotheria, Dasyuromorphia, Peramelemorphia, Notoryctemorphia and Diprotondontia
Australidelphia Marsupials
Didelphidae
Family of Didelphimorphia
Opossums
Caenolestidae
Family of Paucituberculata
Shrew Opossums
Microbiotheriidae
Family of Microbiotheria
Monkey of the mountain
Thylacinidae, Myrmecobiidae and Dasyuridae
Families of Dasyuromorphia
Thyacinidae
Thylacine (Tasmanian Tiger)
Likely extinct
Myrmecobiidae
Numbat
Dasyuridae
Tasmanian devil, quolls, antechinus, sminthopsis
Peramelidae and Thylacomyidae
Families of Peramelemorphia
Peramelidae
Bandicoots
Thylacomyidae
Bilbies
Notoryctidae
Family of Notoryctemorphia
Marsupial mole
Vombatiformes, Macropodiformes and Phalangeriformes
Suborders of Diprotodontia
Vombatidae and Phascolarctidae
Families of Vombatiformes
Vombatidae
Wombats
Phascolarctidae
Koalas
Hypsiprimnodontidae, Macropodidae and Potoroidae
Familes of Macropodiformes
Burramyidae, Phalangeridae, Pseudocheiridae, Petauridae, Tarsipedidae and Acrobatidae
Familes of Phalangeriformes
Burramyidae
Pygmy Possums
Phalangeridae
Cuscuses and brushtail possums
Pseudocheiridae
Ring-tailed possums
Petauridae
Gliders, striped possums.
Includes sugar glider
Tarsipedidae
Honey Possum
Acrobatidae
Feathertail glider and feather-tailed possum
Hypsiprimnodontidae
Musky Rat-Kangaroo
Macropodidae
Kangaroos, wallabies, tre kangaroos, quokkas and pademelons
Macropodidae
Large wallabies
Potoroidae
Bettongs, potoroos and rat-kangaroos