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Euryapsida

Index Euryapsida

Euryapsida is a polyphyletic (unnatural, as the various members are not closely related) group of reptiles that are distinguished by a single temporal fossa, an opening behind the orbit, under which the post-orbital and squamosal bones articulate. [1]

8 relations: Anapsid, Diapsid, Ichthyosaur, Orbit (anatomy), Polyphyly, Reptile, Sauropterygia, Synapsid.

Anapsid

An anapsid is an amniote whose skull does not have openings near the temples.

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Diapsid

Diapsids ("two arches") are a group of amniote tetrapods that developed two holes (temporal fenestra) in each side of their skulls about 300 million years ago during the late Carboniferous period.

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Ichthyosaur

Ichthyosaurs (Greek for "fish lizard" – ιχθυς or ichthys meaning "fish" and σαυρος or sauros meaning "lizard") are large marine reptiles.

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Orbit (anatomy)

In anatomy, the orbit is the cavity or socket of the skull in which the eye and its appendages are situated.

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Polyphyly

A polyphyletic group is a set of organisms, or other evolving elements, that have been grouped together but do not share an immediate common ancestor.

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Reptile

Reptiles are tetrapod animals in the class Reptilia, comprising today's turtles, crocodilians, snakes, amphisbaenians, lizards, tuatara, and their extinct relatives.

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Sauropterygia

Sauropterygia ("lizard flippers") is an extinct, diverse taxon of aquatic reptiles that developed from terrestrial ancestors soon after the end-Permian extinction and flourished during the Mesozoic before they became extinct at the end of that era.

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Synapsid

Synapsids (Greek, 'fused arch'), synonymous with theropsids (Greek, 'beast-face'), are a group of animals that includes mammals and every animal more closely related to mammals than to other living amniotes.

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Redirects here:

Enalio-Saurians, Enaliosaur, Enaliosauria, Euryapsid, Euryapsids, Parapsid, Parapsida.

References

[1] https://en.wikipedia.org/wiki/Euryapsida

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