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Aegirocassis — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Aegirocassis
License (as archived): CC-BY-SA-4.0
Archived: 2026-11-07T16:46:24.758Z
SHA-256 of the archived text: 42b07285b24c22db82505ed9afbea1f49fdfc85ef5692182bffb9427844aa698
Stable URL of this page: https://metraipolis.com/documento/dc_057f36aa4673

How to cite

Aegirocassis — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Aegirocassis (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_057f36aa4673 (Metraipolis archive dc_057f36aa4673, sha256 42b07285b24c22db82505ed9afbea1f49fdfc85ef5692182bffb9427844aa698)

BibTeX

@misc{dc057f36aa4673,
  title = {Aegirocassis — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Aegirocassis},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_057f36aa4673; sha256 42b07285b24c22db82505ed9afbea1f49fdfc85ef5692182bffb9427844aa698},
  year = {2026}
}

Archived text

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

Aegirocassis (″Aegir's helmet″) is an extinct genus of giant radiodont arthropod belonging to the family Hurdiidae that lived 480 million years ago during the early Ordovician in the Fezouata Formation of Morocco. It is known by a single species, Aegirocassis benmoulai. Van Roy initiated scientific study of the fossil, the earliest known of a "giant" filter-feeder discovered to date. Aegirocassis is considered to have evolved from early predatory radiodonts. This animal is characterized by its long, forward facing head sclerite, and the endites on its frontal appendages that bore copious amounts of baleen-like auxiliary spines. This animal evolving filter-feeding traits was most likely a result of the Great Ordovician Biodiversification Event, when environmental changes caused a diversification of plankton, which in turn allowed for the evolution of new suspension feeding lifeforms. Alongside the closely related Pseudoangustidontus, an unnamed hurdiid from Wales, the middle Ordovician dinocaridid Mieridduryn, and the Devonian hurdiid Schinderhannes, this radiodont is one of the few dinocaridids known from post-Cambrian rocks.

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 «Aegirocassis» — https://en.wikipedia.org/wiki/Aegirocassis
Wikidata Q19652298: «genus of Ordovician radiodont» (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q19652298
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Aegirocassis?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 1363938472, consultata il 2026-11-07T16:42:40.289Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 8514aee0eecd7c0c79c2feb6944872feb7e94d8e142ba30814d9b33b603274ad