-
Solnhofen Formation of Germany, is
usually considered the
earliest known avialan which may have had the
capability of
powered flight; a
minority of studies...
-
relatives are the crocodilians.
Birds are
descendants of the
primitive avialans (whose
members include Archaeopteryx)
which first appeared during the Late...
-
avialan) IVPP V13476 (2003)
Yixianosaurus longim**** (2003;
possibly avialan)
Dilong paradoxus (2004)
Pedopenna daohugouensis (2005;
possibly avialan)...
- backward-pointing hip
characterizes the therizinosaurs, dromaeosaurids,
avialans, and some
primitive troodontids. The fact that the backward-pointing hip...
- bony
projections at the back of the mouth;
exclusive to Asia)
Paraves (
avialans and
their closest relatives) †Scansoriopterygidae (small tree-climbing...
-
Avialans of the Two
Medicine Formation Genus Species Location Stratigraphic position Material Notes Images Gettyia G.
gloriae Upper "Tarsometatarsus" An...
- as the
oldest known bird (member of the
group Avialae).
Older potential avialans have
since been identified,
including Anchiornis, Xiaotingia, and Aurornis...
-
believed to be a
basal avialan based on
recent phylogenetic analyses, however, it was
originally proposed to be a
member of the
avialan sister taxon, Deinonychosauria...
- a
natural group which includes the most
recent common ancestor of all
avialans closer to
modern birds than to the enantiornithines. This
group was defined...
- of
lizard of
uncertain taxonomic placement,
originally identified as an
avialan dinosaur (bird, in the
broad sense). It
contains two
known species, O....
