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Rhynchocephalia (/ˌrɪŋkoʊsɪˈfeɪliə/; lit. 'beak-heads') is an
order of lizard-like
reptiles that
includes only one
living species, the
tuatara (Sphenodon...
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resemblance to lizards, it is part of a
distinct lineage, the
order Rhynchocephalia. The name
tuatara is
derived from the Māori
language and
means "peaks...
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members of the
order Rhynchocephalia. The only
surviving member of the
Rhynchocephalia is the tuatara.
Squamata and
Rhynchocephalia form the
subclass Lepidosauria...
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subclass or
superorder of reptiles,
containing the
orders Squamata and
Rhynchocephalia.
Squamata includes lizards and snakes.
Squamata contains over 9,000...
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Michael J.; Ruta,
Marcello (May 2017). "Macroevolutionary
patterns in
Rhynchocephalia: Is the
tuatara (Sphenodon punctatus) a
living fossil?". Palaeontology...
- (turtles),
Crocodilia (crocodilians),
Squamata (lizards and snakes), and
Rhynchocephalia (the tuatara). As of May 2023,
about 12,000
living species of reptiles...
- it is
excluded from Neosphenodontia.
Position of
Clevosaurus within Rhynchocephalia,
after DeMar et al. 2022. Sues, H. D.; Reisz, R. (1995). "First record...
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suggested to
represent a late
surviving lepidosauromorph outside both
Rhynchocephalia and Squamata,
though some
studies have
recovered it as a stem-squamate...
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Rhynchocephalia Squamata...
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Rhynchocephalia reported from the
Allen Formation Genus Species Location Stratigraphic position Material Notes Images Lamarquesaurus L.
cabazai Cerro...
