Information about Pistosaurus
| Pistosaurus Fossil range: Mid Triassic | ||||||||||||
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) Pistosaurus longaevus from the middle Triassic of Europe Pistosaurus longaevus from the middle Triassic of Europe | ||||||||||||
| Conservation status | ||||||||||||
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Extinct (fossil) | ||||||||||||
| Scientific classification | ||||||||||||
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Pistosaurus longaevus is an extinct genus of aquatic sauropterygian reptile belonging to the plesiosaur order. It was about 3 m (10 ft) long.
Previously Pistosaurus was classified as an advanced nothosaur, the presumed ancestors of plesiosaurs, but it has since been reclassified as a primitive plesiosaur. This makes it the oldest plesiosaur known, and the only one from the Triassic period. Pistosaurus shows physical traits of both nothosaurs (palate and body shape) and plesiosaurs (stiff vertebral column). Its flippers and long neck also resembled a plesiosaur's.
The Triassic is a geologic period that extends from about 251 to 199 Ma (million years ago). As the first period of the Mesozoic Era, the Triassic follows the Permian and is followed by the Jurassic. Both the start and end of the Triassic are marked by major extinction events.
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conservation status of a species is an indicator of the likelihood of that species continuing to survive either in the present day or the future. Many factors are taken into account when assessing the conservation status of a species: not simply the number remaining, but the
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- For other uses of the term, see Fossil (disambiguation)
FOSSIL is a standard for allowing serial communication for telecommunications programs under the DOS operating system.
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Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Chordata
Bateson, 1885
Typical Classes
See below
Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Bateson, 1885
Typical Classes
See below
Chordates (phylum Chordata) are a group of animals that includes the vertebrates, together with several closely related invertebrates.
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Sauropsida ("lizard-face") is a group of amniotes that includes reptiles, dinosaurs, and birds. Among amniotes, sauropsida is distinguished from theropsida ("beast-face"), also called synapsids.
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Taxonomy
Classification to order level, after Benton, 2004...... Click the link for more information.
Plesiosauria
de Blainville, 1835
Suborders
Plesiosauroidea
Pliosauroidea
Plesiosauria (IPA /ˈplisiəˌsɔɹ/) (Greek: plesios meaning 'near to' and
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de Blainville, 1835
Suborders
Plesiosauroidea
Pliosauroidea
Plesiosauria (IPA /ˈplisiəˌsɔɹ/) (Greek: plesios meaning 'near to' and
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Sauropterygia
Owen, 1860
Orders
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Owen, 1860
Orders
- ?Thalattosauriformes
- Placodontia
- Nothosauroidea
- Plesiosauria
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Sauropsida*
Goodrich, 1916
Subclasses
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Goodrich, 1916
Subclasses
- Anapsida
- Diapsida
- Reptilia Laurenti, 1768
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Plesiosauroidea
Gray, 1825
Families
Cimoliasauridae
Cryptoclididae
Elasmosauridae
Plesiosauridae
Polycotylidae
Plesiosaurs (IPA /ˈplisɪəˌsɔɹ/
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Gray, 1825
Families
Cimoliasauridae
Cryptoclididae
Elasmosauridae
Plesiosauridae
Polycotylidae
Plesiosaurs (IPA /ˈplisɪəˌsɔɹ/
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Nothosauria
Baur, 1889
Suborders
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Baur, 1889
Suborders
- Suborder Pachypleurosauria
- Pachypleurosauridae
- '''Suborder Nothosauria
- Simosauridae
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Not to be confused with palette or pallet.
The palate (IPA: /ˈpælət/ or /ˈpælɪt/..... Click the link for more information.
vertebral column (backbone or spine) is a column of 34 vertebrae, the sacrum, intervertebral discs, and the coccyx situated in the dorsal aspect of the torso, separated by spinal discs. It houses the spinal cord in its spinal canal.
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Herod_Archelaus
