- It is also
thought that
early avialans were
either cranially akinetic or had
otherwise limited cranial kinesis.
Avialans diversified into a wide variety...
-
Unlike Archaeopteryx and the non-
avialan feathered dinosaurs, who
primarily ate meat,
studies suggest that the
first avialans were omnivores. The Late Jur****ic...
- backward-pointing hip
characterizes the therizinosaurs, dromaeosaurids,
avialans, and some
primitive troodontids. The fact that the backward-pointing hip...
- all
avialan species with ten or
fewer free
vertebrae in the tail. The
group was
named in 2002 by
Gregory S. Paul to
distinguish short-tailed
avialans from...
-
length of the humerus. In Fujianvenator, the
ratio is
closer to 40%. In
avialans, an
enlarged sca**** is
generally ****ociated with the
muscles necessary...
- This is an
incomplete list that
briefly describes vertebrates that were
extant during the Maastrichtian, a
stage of the Late
Cretaceous Period which extended...
- diet,
including seed-eating (some troodontids) and insect-eating (many
avialans and alvarezsaurs). Oviraptorosaurs,
ornithomimosaurs and
advanced troodontids...
- a
natural group which includes the most
recent common ancestor of all
avialans closer to
modern birds than to Sinornis.
Clarke et al. (2006)
found that...
- anchiornithids, and
possibly the scansoriopterygids, the
group also
contains the
avialans,
which include diverse extinct taxa as well as the over 10,000 species...
-
Avialans of the Two
Medicine Formation Genus Species Location Stratigraphic position Material Notes Images Gettyia G.
gloriae Upper "Tarsometatarsus" An...