-
posterior skull is
little modified in
tetanurans,
except within Spinosauridae. In the
postcranial skeleton,
tetanurans transition between the most primitive...
-
large theropod dinosaurs. They were a
relatively primitive group of
basal tetanurans containing two main subfamilies,
Megalosaurinae and Afrovenatorinae, along...
- compsognathid-like teeth.
Megaraptorans were
originally placed as
basal tetanurans as part of the
family Neovenatoridae within the
allosauroid clade Carcharodontosauria...
-
clade containing Allosauroidea and Coelurosauria, and
excluding other tetanurans such as megalosauroids, but this
definition was
published slightly later...
- an
intriguing combination of
derived tetanuran synapomorphies and
primitive features shared with non-
tetanurans,
which suggest they
occupy a
basal position...
- dinosaurs,
including birds.
Although many
phylogenetic analyses found basal tetanurans that were
outside both
Megalosauroidea and Avetheropoda, the core dichotomy...
- the Late Jur****ic of
North America Skeleton of Monolophosaurus, a
basal tetanuran from the
Middle Jur****ic of
China Restoration of Yi qi, a scansoriopterygid...
-
Megalosauroidea (meaning 'great/big
lizard forms') is a
superfamily (or clade) of
tetanuran theropod dinosaurs that
lived from the
Middle Jur****ic to the Late Cretaceous...
- was
prominent in
Duriavenator compared to
other basal (early diverging)
tetanurans, and the two
processes above together form a
subnarial (below the nostril)...
- medius. The
referral was not
accepted in the most
recent review of
basal tetanurans, and
Allosaurus medius was
simply listed as a
dubious species of theropod...