-
identified diapsids, the araeoscelidians,
appeared about three hundred million years ago
during the late
Carboniferous period. All
diapsids other than...
-
though not
diapsids in a
purely anatomical sense,
qualify as
members of the
clade Diapsida due to
their likely diapsid ancestry. Some
diapsids, particularly...
- pliosaurs,
developed a
similar mechanism in
their pelvis.
Other than
being diapsids,
their affinities to
other reptiles have long been contentious. Sometimes...
-
classification as
diapsids. All
known diapsids excrete uric acid as
nitrogenous waste (uricotelic), and
there is no
known case of a
diapsid reverting to the...
- thus
defining Reptilia as a more
restricted crown group encomp****ing
diapsids and
parareptiles (apart from mesosaurs,
which he
considered to be the most...
- turtles) and
diapsids (all
other living reptiles) – and all
descendants of that
common ancestor. This view of
placing turtles outside of
diapsids is now outdated...
-
Sauria is the
clade of
diapsids containing the most
recent common ancestor of
Archosauria (which
includes crocodilians and birds) and
Lepidosauria (which...
-
probably better at
conserving water than
early synapsids because:
Modern diapsids (lizards, snakes, crocodilians, birds)
excrete uric acid,
which can be...
- in
synapsids (mammals and
their extinct relatives)
there is one; and in
diapsids (including birds, crocodilians, squamates, and tuataras),
there are two...
-
bones at the back of the skull.
While all but the
earliest eureptiles were
diapsids, with two
openings at the back of the skull,
parareptiles were generally...
