-
occupied by
lizards today were held by
rhynchocephalians during the Tri****ic and Jur****ic.
Rhynchocephalians underwent a
great decline during the Cretaceous...
- also
found in many
other advanced rhynchocephalians. The
teeth of the tuatara, and
almost all
other rhynchocephalians, are
described as acrodont, as they...
-
attached to the apex of the jaw bone,
similar to
other primitive rhynchocephalians like Diphydontosaurus.
These teeth underwent replacement. The frontal...
-
containing all
descendants of the last
common ancestor of
squamates and
rhynchocephalians.
Lepidosaurs can be
distinguished from
other reptiles via several...
-
Ichthyornis was a toothed, seabird-like
ornithuran from the Late
Cretaceous Rhynchocephalians (which
today only
includes the tuatara)
disappeared from
North America...
-
rhynchocephalians, however,
their position is disputed, with some
studies recovering them as less
closely related to
squamates than
rhynchocephalians...
- Pelecymala, the most
diverse and long-lasting
group of
herbivorous rhynchocephalians were the opisthodonts. Some more
generalized opisthodonts, such as...
-
clade Lepidosauria.
Squamates are a
monophyletic sister group to the
rhynchocephalians,
members of the
order Rhynchocephalia. The only
surviving member of...
-
preserve a
nearly complete skeleton. It is
amongst the
smallest known rhynchocephalians, with a
skull length of 2.05
centimetres (0.81 in) and a snout–vent...
- the most
primitive rhynchocephalians,
being outside the
clade Sphenodontia,
which contains the vast
majority of
rhynchocephalians.
Cladogram after Sues...
