-
thought to be an
early diverging branch of
maniraptoran theropods.
Alvarezsaurids were
highly specialized. They had tiny but
stout forelimbs, with compact...
- sub-triangular and
laterodistally directed,
features seen in
other alvarezsaurids like Shuvuuia.
Spinal processes were
entirely absent or
poorly developed...
-
immunological reactivity in feather-like
structures of the
Cretaceous Alvarezsaurid,
Shuvuuia deserti".
Journal of
Experimental Zoology Part B. 285 (2)...
- Ornithomimus. Some paleontologists, like Paul Sereno,
consider the
enigmatic alvarezsaurids to be
close relatives of the
ornithomimosaurs and
place them together...
- in the
alvarezsaurid subfamily Parvicursorinae.
There may be a second, yet-unnamed,
species of Parvicursor. Two
specimens of tiny
alvarezsaurids were described...
- forelimbs, each with a
single greatly enlarged second digit.
Although alvarezsaurids were once
thought to have only a
single digit on each forelimb, more...
- and
colleagues in 2010, to
contain the
family Alvarezsauridae and non-
alvarezsaurid alvarezsauroids, such as Haplocheirus,
which is the
basalmost of the...
-
represents one of the few
known alvarezsaurids from
North America. At 66
million years old, it is the
youngest known alvarezsaurid and is one of the youngest...
- and
powerfully constructed.
Although originally Shuvuuia and
other alvarezsaurids were
thought to have only a
single digit on the
front limb,
newer specimens...
-
found their new
genus to be an
alvarezsaurid with an
unresolved relationship to
Alvarezsaurus and more
derived alvarezsaurids. However, Makovicky, Apesteguía...
