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Tetrapoda
Sign in to saveAlso known as tetrapods, tetrapod, tetrapod animal, tetrapod animals
A tetrapod (; ) is any vertebrate animal of the clade Tetrapoda (). Tetrapods include all extant and extinct amphibians and amniotes, with the latter in turn evolving into two major clades, the sauropsids (reptiles, including dinosaurs and therefore birds) and synapsids (extinct "pelycosaurs", therapsids and all extant mammals, including humans).
Tetrapods are vertebrate animals that include all amphibians, reptiles (including dinosaurs and birds), and mammals—both living species and extinct ones. They matter because this group encompasses the vast majority of large land animals throughout Earth's history, including humans, and represents one of the most successful and diverse branches of the vertebrate family tree.
AI-generated from the Wikipedia summary — may contain errors.
Species
四足類
Tetrapoda
GENUS
- KingdomAnimalia
- PhylumArthropoda
- ClassArachnida
Als Landwirbeltiere oder Tetrapoda (altgriechisch τέτρα tetra, deutsch ‚vier‘ und πόδ- pod-, deutsch ‚Fuß‘) bzw. Tetrapoden fasst man in der biologischen Systematik die Wirbeltiere zusammen, die vier Gliedmaßen (Extremitäten) haben. Zu diesen Vierfüßern gehören die Amphibien (Amphibia), die Sauropsiden (Sauropsida) — inklusive der Reptilien im klassischen Sinne (Reptilia, paraphyletisch) und der Vögel (Aves) — und die Säugetiere (Mammalia) einschließlich des Menschen. Heute zählen etwa 35.000 Tierarten zu den Tetrapoden. Im Lauf der Evolution haben einige Gruppen der Landwirbeltiere auch Gewässer und den Luftraum als Lebensraum erobert. Aufgrund der Anpassung an diese Lebensräume sowie an spezielle Lebensweisen ist die Bezeichnung „Vierfüßer“ nicht immer streng wörtlich zu nehmen. So sind bei den Schlangen alle vier Beine sekundär wieder verloren gegangen. Bei den Vögeln und Fledertieren (und auch bei den ausgestorbenen Flugsauriern) haben sich die Vorderbeine zu jeweils verschieden gebauten Flügeln entwickelt. Während die Amphibien als „primitivste“ Tetrapoden als Larven im Wasser leben und erst als erwachsene Tiere an Land gehen, sind einige Vertreter der „höheren“ Landwirbeltier
via GBIF
Wikidata facts
- Image
- Feuer Salamander 2.jpg
Show 6 more facts
- taxon name
- Tetrapoda
- Commons category
- Tetrapoda
- taxon common name
- teitreapód
- earliest date
- 390000000-
- start time
- 367500000-
- IPA transcription
- ˌtɛt͡ʃɹəˈpɑdə
Sources (1)
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~52 min read
Article
47 sectionsContents
- Definitions
- Apomorphy-based definitions
- Crown group tetrapods
- Biodiversity
- Classification
- History of classification
- Modern classification
- Evolution
- History
- Palaeozoic
- Devonian stem-tetrapods
- Carboniferous
- Permian
- Mesozoic
- Cenozoic
- Phylogeny
- Stem group
- Crown group
- Origins of modern amphibians
- Temnospondyl hypothesis (TH)
- Lepospondyl hypothesis (LH)
- Polyphyly hypothesis (PH)
- Anatomy and physiology
- Skull
- Neck
- Dentition
- Axial skeleton
- Girdles
- Limbs
- Locomotion
- Feeding
- Respiration
- Gills
- Lungs
- Recoil aspiration
- Cutaneous respiration
- Carbon dioxide metabolism
- Circulation
- Senses
- Olfaction
- Lateral line system
- Vision
- Balance
- Hearing
- See also
- References
- Further reading
A tetrapod (; ) is any vertebrate animal of the clade Tetrapoda (). Tetrapods include all extant and extinct amphibians and amniotes, with the latter in turn evolving into two major clades, the sauropsids (reptiles, including dinosaurs and therefore birds) and synapsids (extinct "pelycosaurs", therapsids and all extant mammals, including humans).
Hox gene mutations have resulted in some tetrapods becoming limbless (snakes, legless lizards, and caecilians) or two-limbed (cetaceans, sirenians, some lizards, kiwis, and the extinct moa and elephant birds). Nevertheless, they still qualify as tetrapods through their ancestry, and some retain a pair of vestigial spurs that are remnants of the hindlimbs.
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