- Eutheria. The
oldest uncontested metatherians are now 110
million year old
fossils from
western North America.
Metatherians were
widespread in Asia and North...
-
Theria includes the
eutherians (including the
placental mammals) and the
metatherians (including the marsupials) but
excludes the egg-laying
monotremes and...
-
called metatherians,
probably split from
those of
placentals (eutherians)
during the mid-Jur****ic period,
though no
fossil evidence of
metatherians themselves...
- Jur****ic or
early Cretaceous; it is
found in the
eutherian Eomaia and the
metatherian Sinodelphys, both
dated to 125 million
years ago.
Epipubic bones, a feature...
- an
extinct genus of small,
primitive mammal that was a
member of the
metatherians, a
group of
mammals that
includes modern-day marsupials. Its fossils...
-
combination of
features from both
early eutherians (stem-placentals) and
early metatherians (stem-marsupials). This is
responsible for the
generic name of Ambolestes:...
- as
Repenomamus and Gobiconodon,
early therians began to
expand into
metatherians and eutherians, and
cimolodont multituberculates went on to
become common...
- mammals – the
eutherians (placentals) in the
Northern Hemisphere and the
metatherians (marsupials, now
mainly restricted to
Australia and to some
extent South...
-
comparing Thylacosmilus to both
extinct and
modern carnivorans and
metatherians,
suggest that it
weighed between 80 and 120
kilograms (180 and 260 lb)...
- "Phylogeny and
Diversity of
South American Metatherians", A
Brief History of
South American Metatherians, Dordrecht:
Springer Netherlands, pp. 155–183...
