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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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previously considered to have
belonged to
Opisthias or Theretairus,
recent studies have
doubted this referral, thus
placing it as an
indeterminate sphenodont....
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frogs such as Eobatrachus, salamanders, turtles,
sphenodonts, lizards,
terrestrial and
aquatic crocodylomorphs like Goniopholis, and...
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excludes them from the
clade of
sphenodonts which are
capable of such movement, the so-called "eupropalinal
sphenodonts" such as the tuatara, (formally...
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included bivalves, snails, ray-finned fishes, frogs, salamanders, turtles,
sphenodonts, lizards,
terrestrial and
aquatic crocodylomorphs, and
several species...
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types of
early mammals, as well as
tritylodont synapsids, lizard-like
sphenodonts, and
early lissamphibians.[citation needed]
Geology portal Paleontology...
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preserving fish
including dipnoans and gar,
chelid turtles, squamates,
sphenodonts,
neosuchian crocodilians, and a wide
variety of dinosaurs. Vertebrates...
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rhynchocephalians (
sphenodonts and
their ancestors). This
suggests that the
ancestral condition of the
skull in
lepidosaurs was more
similar to
sphenodonts than to...
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ossification may have
evolved multiple times,
having been
found in the Jur****ic
sphenodont Sapheosaurus as well as in the
therapsid Ni****odon mfumukasi. The epiphysis...
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Paleontology or
palaeontology is the
study of
prehistoric life
forms on
Earth through the
examination of
plant and
animal fossils. This
includes the study...
