Is Monotremata an order?
TherapsidMonotreme / OrderTherapsida is a major group of eupelycosaurian synapsids that includes mammals and their ancestors. Many of the traits today seen as unique to mammals had their origin within early therapsids, including Wikipedia
Why is Monotremata considered a mammal?
Like other mammals, monotremes possess a segmented jaw, have three bones that comprise the middle ear, are warm blooded, and lactate. Although these animals are often referred to as primitive or ancestral, they are not the ancestors of all mammals.
What is the order of Mammalia?
TherapsidMammal / OrderTherapsida is a major group of eupelycosaurian synapsids that includes mammals and their ancestors. Many of the traits today seen as unique to mammals had their origin within early therapsids, including Wikipedia
What phylum is class Mammalia?
Phylum Chordata
The taxon to which mammals belong is the Class Mammalia, which is in the Phylum Chordata in the Kingdom Animalia. Placing mammals in one Class indicates that they are more closely related to one another than any mammal is to an animal in a different Class.
Do marsupials belong to Diprotodontia?
Introduction. The Diprotodontia includes a wide variety of uniquely Australian and familiar marsupials including kangaroos, wallabies, possums, wombats, and koalas, along with many less-recognized groups/names (e.g., antechinids, dasyurids, quolls, and more).
Which one of the following characters is not generally found in the class Mammalia?
Ten pairs of cranial nerves is not a character of the class Mammalia.
How many animals are monotremes?
five
The monotremes are a group of highly specialised egg-laying predatory mammals, containing the platypus and echidnas. There are only five living species of monotreme, contained within two families: Family Ornithorhynchidae: the platypus, a single species in a single genus, Ornithorhynchus anatinus.
Are monotremes the first mammals?
Although these animals are often referred to as primitive or ancestral, they are not the ancestors of all mammals. Instead, monotremes formed a very early radiation of mammals that originally evolved from early synapsids, which are considered to have been reptile-like mammals (Figure 1).
How many animals are in the class Mammalia?
Class Mammalia includes the red squirrel, and every other mammal (animals with fur, that produce milk and look after their young). We have cut out all other vertebrates – fish, reptiles, amphibians and birds. There are probably around 4,800 species of mammal alive today.
What are the three orders of class Mammalia?
Mammals are divided into three groups – monotremes, marsupials and placentals, all of which have fur, produce milk and are warm-blooded. Monotremes are the platypus and echidnas and the females lay soft-shelled eggs.
Which of the following are examples of class Mammalia *?
Monotremes, marsupials (e.g. kangaroos) and placentals (e.g. primates, elephants, dolphins, cattle, etc.) are examples of mammals. With the exception of the monotremes (which are oviparous), most female mammals are viviparous.
Which organisms are classified into the class Mammalia?