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Xenungulata ("strange ungulates") is an
order of
extinct and
primitive South American hoofed mammals that
lived from the Late
Paleocene to
Early Eocene...
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group to the
South American native ungulate group Xenungulata. A
close relationship with
Xenungulata was
first proposed in 1985, with the
proposed clade...
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ranked as orders—Astrapotheria, Litopterna, Notoungulata, Pyrotheria, and
Xenungulata—as well as the
primitive "condylarth"
groups Didolodontidae and Kollpaniinae...
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deposits of Brazil, Peru and Argentina. Some
experts place the
clade Xenungulata (which
contains several genera,
including Carodnia)
within Pyrotheria...
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Meridiungulata (along with Notoungulata, Litopterna,
Pyrotheria and
Xenungulata). In turn,
Meridungulata is
believed to
belong to the
extant superorder...
- This is an
incomplete list of
prehistoric mammals. It does not
include extant mammals or
recently extinct mammals. For
extinct primate species, see: list...
- Order: †Litopterna Ameghino, 1889 Order: †Notoungulata Roth, 1903 Order: †
Xenungulata? Order: †Pyrotheria? Order: †Astrapotheria? Clade: Perissodactylamorpha...
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Xenungulata, Pyrotheria, Astrapotheria, and
other minor groups...
- †Eoastrapostylopidae
Family †Trigonostylopidae
Family †Astrapotheriidae
Order †
Xenungulata Family †Carodniidae
Order †Pyrotheria
Family †Pyrotheriidae Mirorder...
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Xenungulata, Pyrotheria, Astrapotheria, and
other minor groups...
