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Deltatheridium (meaning
triangle beast or
delta beast) is an
extinct species of metatherian. It
lived in what is now
Mongolia during the
Upper Cretaceous...
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marsupial was
Deltatheridium known from
specimens from the
Campanian age of the Late
Cretaceous in Mongolia. This
study placed both
Deltatheridium and Pucadelphys...
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North America. This
order can be
defined as all
metatherians closer to
Deltatheridium than to Marsupialia. When they were
first identified in the 1920s, they...
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including dinosaurs; a
recorded attack on an
Archaeornithoides by a
Deltatheridium predates its description. More
evidence suggesting Repenomamus was suited...
- have been carnivoramorphs. Most
carnivorous mammals, from dogs to
deltatheridiums,
share several dental adaptations, such as carn****ialiforme teeth,...
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Deltatheroides Deltatheridium...
- be a back
tooth from the left,
upper jaw of a
carnivore similar to a
Deltatheridium, an
ancient marsupial relative that
lived in what is now
Mongolia between...
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consist in six genera:
Atokatheridium Kielan-Jaworowska & Cifelli, 2001
Deltatheridium Gregory & Simpson, 1926
Deltatheroides Gregory & Simpson, 1926 Gurbanodelta...
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characterized by
molar features. †Kielantherium †Deltatheroida
including †
Deltatheridium -
incertae sedis (it may
represent a metatherian) Crown-group Theria...
- and four molars, and the
mandible was
slightly curved.
Compared to
Deltatheridium,
Asiatherium was even more marsupial-like, due to its
molars having...
