- Eutheria. The
oldest uncontested metatherians are now 110
million year old
fossils from
western North America.
Metatherians were
widespread in Asia and North...
-
called metatherians,
probably split from
those of
placentals (eutherians)
during the mid-Jur****ic period,
though no
fossil evidence of
metatherians themselves...
- Theriiformes.
Theria includes the
eutherians (including the placentals) and the
metatherians (including the marsupials) but
excludes the egg-laying
monotremes and...
- mammals – the
eutherians (placentals) in the
Northern Hemisphere and the
metatherians (marsupials, now
mainly restricted to
Australia and to some
extent South...
- as
Repenomamus and Gobiconodon,
early therians began to
expand into
metatherians and eutherians, and
cimolodont multituberculates went on to
become common...
-
years ago) and is at most no
older than
Oligocene in age. Many
extinct metatherians, such as Alphadon, Peradectes, Herpetotherium, and Pucadelphys, were...
-
Standhardt (2012). "The
phylogeny and
evolution of Cretaceous–Palaeogene
metatherians:
cladistic analysis and
description of new
early Palaeocene specimens...
- 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...
- The
second appearance is in Deltatheroida, a
lineage of
Cretaceous metatherians. At
least one genus, Lotheridium,
possessed long canines, and
given both...
- González Ruiz,
Laureano R.; Tejedor,
Marcelo F. (10 July 2024). "New
metatherians from
Collon Cura
Formation at
Cerro Zeballos (Middle Miocene), Chubut...
