-
other words, the
pygostyles of
oviraptorosaurs and
Confuciusornis were
likely weight-saving measures, and the
specialized "true"
pygostyles of ornithurans...
-
partial skeleton.
Baminornis is the
oldest known avialan to bear a
fused pygostyle. The
Baminornis holotype specimen, IVPP V33259, was
discovered in outcrops...
- to the
pygostyle. The
Ornithothoraces have a ploughshare-shaped
pygostyle,
while the more
primitive members had longer, rod-shaped
pygostyles. The earliest...
-
adaptation is the
fusing of
bones into
single ossifications, such as the
pygostyle.
Because of this,
birds usually have a
smaller number of
bones than other...
-
vibrissae around the gape. They have 13
flight feathers, no tail and a
small pygostyle.
Their gizzard is weak and
their cae**** is long and narrow. The eye of...
- maniraptoromorphs, and this
process culminated in the
appearance of the
pygostyle, an
ossification of
fused tail vertebrae. In the late Cretaceous, about...
-
pubis (innominate); 15.
ilium (innominate); 16.
caudal vertebrae; 17.
pygostyle; 18. synsacrum; 19. sca****; 20.
dorsal vertebrae; 21. humerus; 22. ulna;...
-
Caudal vertebrae compose the tail, and the
final few can be
fused into the
pygostyle in birds, or into the
coccygeal or tail bone in
chimpanzees (and humans)...
- new
group called Sauriurae. Said simply,
modern birds have short,
fused pygostyle tails,
while Archaeopteryx retained the long tail
characteristic of non-avian...
-
gastralia and a
pubic symphysis. They also
showed the
first fully modern pygostyles, and the type
specimen of
Yixianornis (IVPP 13631)
preserves eight elongated...
