-
Ornithurae (meaning "bird tails" in Gr****) is a
natural group which includes the
common ancestor of Ichthyornis, Hesperornis, and all
modern birds as well...
-
Phylogenetic Taxonomy, and
Systematics of
Ichthyornis and
Apatornis (Avialae:
Ornithurae)" (PDF).
Bulletin of the
American Museum of
Natural History. 286: 1–179...
- Luis
Chiappe in 1999 as the
common ancestor of Patagopteryx, Vorona, and
Ornithurae, plus all of its descendants.
Because one
definition is node-based and...
-
phylogenetic taxonomy, and
systematics of
Ichthyornis and
Apatornis (Avialae:
Ornithurae)".
Bulletin of the
American Museum of
Natural History. 286: 1–179. doi:10...
- feathers. The
other pygostyle type is plowshare-shaped. It is
found in
Ornithurae (living
birds and
their closest relatives), and in
almost all
flying species...
- the
basis of an
isolated left leg. It is the oldest-known
member of the
Ornithurae, the
group which includes modern birds (Neornithes) and
extinct related...
-
Phylogenetic Taxonomy, and
Systematics of
Ichthyornis and
Apatornis (Avialae:
Ornithurae)" (PDF).
Bulletin of the
American Museum of
Natural History. 286: 1–179...
- Most
analyses have
found it to be
either an
unresolved member of the
Ornithurae, or a more
primitive member of Ornithuromorpha. One 2006 study, for example...
-
cervical vertebrae, that were
previously known only in
members of the
Ornithurae. A
phylogenetic analysis by Zhou et al.
reduces to just
three the number...
-
alternative position for
vegaviids as stem-birds in the more
inclusive clade Ornithurae. In 2018 Mayr and
colleagues did a
review of
vegaviid systematics stating...
