Mammalia 2

The earliest-known eutherian mammal hunting on a tree fern. A shrew-like animal that snagged insects from ferns lining the shores of freshwater lakes

when the dinosaurs roamed

 

 

⭕️⭕️C – Mammalia: Animals with hair, give birth to live

 

young, nourish young with milk. There are ⬛️20

 

orders of mammals,      (20 Orders)

160 Subclass🔹Theria Mammals that give birth to live young (i.e., non-egg-laying)

   {Subclass METATHERIA (Marsupials)}

   {Subclass PROTOTHERIA (Monotremes)}

👤 125 Subclass EUTHERIA (Placental)

        {SO Euarchontoglires➡️ ScandentiaTupaiidae➡️Glires➡️Rodentia Lagomorph}

124-101 MagnorderBoreoeutheria Superorder Euarchontoglire

100 Supraprimates: primates, colugos, tree shrews, rodents, and rabbits

99-80 GrandorderEuarchont Primates, colugos, and tree shrews

79.6 Mirorder🔹PRIMATOMORPHA  2 orders

             {Order Dermoptera (Cynocephalus volans/Colugos}

 

below are some of the most

 

commonly seen.

 

ORDER

 

🔹O – Chiroptera: Forelimbs modified for flight.

 

Ex. bats.

 

🔹O – Insectivora: Typically small body size.

 

Small eyes. Elongate snout. Simple cheek

 

teeth. Pelage of one hair type. Ex. shrews

 

and moles.

 

🔹O – Rodentia: Typically small body size. One

 

pair of upper and lower incisors.

 

Ex. mice, rats, chipmunks, squirrels,

 

marmots, porcupines.

 

🔹O – Lagomorpha: Long ears. Indistinct or small

 

tail. Soles of feet covered with fur. Two

 

pair of upper incisors (second pair behind

 

the first pair. Ex. rabbits, hares, pikas.

 

🔹O – Carnivora: Medium to large body size. Limbs

 

variable in structure. Claws. Large,

 

pointed, curved canine teeth. Ex. weasels,

 

mongooses, raccoons, cats, hyaenas, dogs,

 

bears.

 

🔹O – Perissodactyla: Limbs similar. Hoofs. Odd

 

number of toes. Ex. horses, zebras,

 

tapirs, rhinoceroses.

 

🔹O – Artiodactyla: Limbs similar. Hoofs. Even

 

number of toes. Ex. pigs, peccaries,

 

hippopotamuses, camels, deer, giraffes,

 

cattle, sheep, antelopes.

 

⭕️⭕️O – Primates: Opposable thumb. Finger nails.

 

Large brain case. Ex. lemurs, monkeys,

 

marmosets, apes, humans.

Burnt

I am an Amateur Gynaecologist with a love of Maidenhair Ferns and a fondness for interpreting Vermeer's Paintings as Metaphors ...

Recommended Articles