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Alvarezsauridae is a
family of small, long-legged dinosaurs.
Although originally thought to
represent the
earliest known flightless birds, they are now...
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Alvarezsauroidea is a
group of
small maniraptoran dinosaurs. Alvarezsauroidea,
Alvarezsauridae, and
Alvarezsauria are
named for the
historian Gregorio Álvarez, not...
- the late
Cretaceous period of Mongolia. It is a
member of the
family Alvarezsauridae,
small coelurosaurian dinosaurs which are
characterized by
short but...
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pelvic girdle, and hindlimbs.
Patagonykus has been
classed with the
Alvarezsauridae, a
family which includes such taxa as the
Mongolian Mononykus and the...
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represent a
juvenile individual. Like
other members of the
family Alvarezsauridae, the
forelimbs of
Parvicursor were
short and stubby, with
hands all...
-
identified as a
separate species.
Albertonykus is the
smallest known alvarezsauridae ever
discovered in
North America,
measuring 1.1 m (3.6 ft) long and...
- well-developed notch. As in Maniraptora,
Oviraptorosauria and
other Alvarezsauridae, the
acromion is
subtriangular in shape. The
glenoid fossa is oriented...
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others specialized in
various directions,
becoming insectivorous (
Alvarezsauridae),
herbivorous (Therizinosauridae) and
carnivorous (Tyrannosauroidea...
- its
relative Shuvuuia feather traces were discovered,
proving that
Alvarezsauridae were
among the
theropod lineages with
feathery or
downy integument...
- feathers) †Alvarezsauroidea (small
hunters with
reduced forelimbs) †
Alvarezsauridae (insectivores with only one
enlarged digit) †Therizinosauria (tall...
