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Alvarezsauridae — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Alvarezsauridae
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-08T18:24:20.399Z
SHA-256 of the archived text: 8514a1e2f400ebf21da58c383b4d629c4bc8c7f955c097dd52440759d10f58d1
Stable URL of this page: https://metraipolis.com/documento/dc_f33fc9f014da

How to cite

Alvarezsauridae — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Alvarezsauridae (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_f33fc9f014da (Metraipolis archive dc_f33fc9f014da, sha256 8514a1e2f400ebf21da58c383b4d629c4bc8c7f955c097dd52440759d10f58d1)

BibTeX

@misc{dcf33fc9f014da,
  title = {Alvarezsauridae — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Alvarezsauridae},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_f33fc9f014da; sha256 8514a1e2f400ebf21da58c383b4d629c4bc8c7f955c097dd52440759d10f58d1},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Alvarezsauridae. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

Alvarezsauridae is a family of small, long-legged dinosaurs. Although originally thought to represent the earliest known flightless birds, they are now thought to be an early diverging branch of maniraptoran theropods. Alvarezsaurids were highly specialized, with tiny, stout forelimbs ending in compact, bird-like hands. Their skeletons suggest that they had massive breast and arm muscles, possibly adapted for digging or tearing. They had long, tube-shaped snouts filled with tiny teeth. They have generally been interpreted as myrmecophagous, adapted to prey on colonial insects such as termites, with the short arms acting as effective digging instruments to break into nests. Alternative hypotheses of ovivory interpret the manus as specialized shell-cracking apparatuses, using the large claws and robust forelimbs to puncture eggs. Alvarezsaurus, the type genus of the family, was named after the historian and physician Gregorio Álvarez. Fossils attributed to alvarezsaurids have been found in North America, South America, and Asia, and range in age from about 86 to 66 million years ago.

Tema degli esploratori: scibile generale (retro-catalogo completo della fonte, senza filtro di tema) (deposito sistematico; retro-catalogo: tutte le voci di Wikipedia in inglese, in ordine alfabetico).
Fonte: Wikipedia in inglese, voce «Alvarezsauridae» — https://en.wikipedia.org/wiki/Alvarezsauridae
Wikidata Q134179: «family of reptiles (fossil)» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q134179
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Alvarezsauridae?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1376492794, consultata il 2026-11-08T18:20:25.918Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: d90502ba14909bd27ef47ebe2b0300c7762440d9837495677973c5691ef21268