Australosphenida and Mammal

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Difference between Australosphenida and Mammal

Australosphenida vs. Mammal

The Australosphenida are a proposed infraclass of mammals within subclass Yinotheria. Mammals are the vertebrates within the class Mammalia (from Latin mamma "breast"), a clade of endothermic amniotes distinguished from reptiles (including birds) by the possession of a neocortex (a region of the brain), hair, three middle ear bones, and mammary glands.

Ambondro mahabo

Ambondro mahabo is a mammal from the middle Jurassic (about 167 million years ago) of Madagascar.

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Cladotheria

Cladotheria is a group (legion) of mammals that includes the ancestor of Dryolestoidea, Peramuridae and Zatheria (living therians plus all of its ancestors).

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Class (biology)

In biological classification, class (classis) is a taxonomic rank, as well as a taxonomic unit, a taxon, in that rank.

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Cretaceous

The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period million years ago (mya) to the beginning of the Paleogene Period mya.

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Docodonta

Docodonta is an order of extinct mammaliaforms that lived during the mid- to late-Mesozoic era.

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Echidna

Echidnas, sometimes known as spiny anteaters, belong to the family Tachyglossidae in the monotreme order of egg-laying mammals.

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Eutriconodonta

Eutriconodonta is an order of early mammals.

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Genus

A genus (genera) is a taxonomic rank used in the biological classification of living and fossil organisms, as well as viruses, in biology.

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Jurassic

The Jurassic (from Jura Mountains) was a geologic period and system that spanned 56 million years from the end of the Triassic Period million years ago (Mya) to the beginning of the Cretaceous Period Mya.

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Late Triassic

The Late Triassic is the third and final of three epochs of the Triassic Period in the geologic timescale.

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Marsupial

Marsupials are any members of the mammalian infraclass Marsupialia.

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Mesozoic

The Mesozoic Era is an interval of geological time from about.

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Monotreme

Monotremes are one of the three main groups of living mammals, along with placentals (Eutheria) and marsupials (Metatheria).

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Multituberculata

Multituberculata (commonly known as multituberculates, named for the multiple tubercles of their teeth) is an extinct taxon of rodent-like allotherian mammals that existed for approximately 166 million years, the longest fossil history of any mammal lineage.

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Phylogenetics

In biology, phylogenetics (Greek: φυλή, φῦλον – phylé, phylon.

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Placentalia

Placentalia ("Placentals") is one of the three extant subdivisions of the class of animals Mammalia; the other two are Monotremata and Marsupialia.

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Platypus

The platypus (Ornithorhynchus anatinus), sometimes referred to as the duck-billed platypus, is a semiaquatic egg-laying mammal endemic to eastern Australia, including Tasmania.

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Prototheria

Prototheria (from Greek πρώτος, prōtos, first, + θήρ, thēr, wild animal) is the subclass to which the order Monotremata belongs.

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Theria

Theria (Greek: θηρίον, wild beast) is a subclass of mammals amongst the Theriiformes (the sister taxa to Yinotheria).

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Yinotheria

Yinotheria is a proposed basal mammalian subclass clade that contains a few fossils of the Mesozoic and the extant monotremes.

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