-
Pygostyle describes a
skeletal condition in
which the
final few
caudal vertebrae are
fused into a
single ossification,
supporting the tail
feathers and...
-
partial skeleton.
Baminornis is the
oldest known avialan to bear a
fused pygostyle. The
Baminornis holotype specimen, IVPP V33259, was
discovered in outcrops...
-
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...
- maniraptoromorphs, and this
process culminated in the
appearance of the
pygostyle, an
ossification of
fused tail vertebrae. In the late Cretaceous, about...
- new
group called Sauriurae. Said simply,
modern birds have short,
fused pygostyle tails,
while Archaeopteryx retained the long tail
characteristic of non-avian...
- to the
pygostyle. The
Ornithothoraces have a ploughshare-shaped
pygostyle,
while the more
primitive members had longer, rod-shaped
pygostyles. The earliest...
-
quill ****s (the
anchor points for wing
feathers on the forelimb) or a
pygostyle (the
fused vertebrae at the tail tip
which often supports large feathers)...
- have
referred to as a "
pygostyle", but
which Witmer found was
anatomically different and
evolved separately from the
pygostyle of
birds (a bone which...
- the
lumbar region and sacrum), six free tail (caudal) vertebrae, and a
pygostyle. The neck had well-developed
areas for
muscle and
ligament attachment...
-
pubis (innominate); 15.
ilium (innominate); 16.
caudal vertebrae; 17.
pygostyle; 18. synsacrum; 19. sca****; 20.
dorsal vertebrae; 21. humerus; 22. ulna;...
