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Placental mammals (infraclass
Placentalia /plæsənˈteɪliə/) are one of the
three extant subdivisions of the
class Mammalia, the
other two
being Monotremata...
- right' and θηρίον, thēríon 'beast'; lit. 'true beasts'), also
called Pan-
Placentalia, is the
clade consisting of
placental mammals and all
therian mammals...
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protein characters, as well as the
fossil record.
Mammal classification Placentalia Exceptional clades whose males lack the
usual boreoeutherian ****...
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presumably in the Cretaceous.
Together with Boreoeutheria, they make up
Placentalia. The
monophyly of this
grouping is
supported by some
genetic evidence...
- However, the
chorioallantoic placenta is
small compared to
those of the
Placentalia, and
lacks chorionic villi.
Bandicoots can
reach 11 to 31 in (28 to 79 cm)...
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clade Placentalia – but only
Mammalia and
Theria are in the table.
Legitimate arguments might arise if the
commonly used
clades Eutheria and
Placentalia were...
- a
living crown-group (respectively the Monotremata,
Marsupialia and
Placentalia) plus any
fossil species which are more
closely related to that crown-group...
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Chordata Clade:
Amniota Clade:
Synapsida Clade:
Mammaliaformes class:
Mammalia Linnaeus, 1758
Living subgroups Monotremata Theria Marsupialia Placentalia...
- v t e
Extant Pilosa species by
suborder Kingdom Animalia Phylum Chordata class Mammalia Infraclass Placentalia Superorder Xenarthra Category...
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Tribosphenida Subclass:
Theria Parker & Haswell, 1897
Subgroups Eutheria Placentalia Metatheria Marsupialia †Juramaia †Patagomaia †Spelaeomolitor †Tingamarra...