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Haloarcula quadrata

species of archaea

Specimen drawers, botanical folios and brass scientific instruments under study light
Science and natureInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionSep 14, 2026
Entity authorityQ16641164 ↗
Source-derived summary

Haloarcula quadrata is a species of archaea discovered in a brine pool in the Sinai Peninsula of Egypt. It was one of the first strains of prokaryotes whose cells show a flat, box-like shape.

They were categorized as Haloarcula on the basis of their polar lipid composition.

Morphology and metabolism

The cells move using single or multiple flagella but lack gas vacuoles. Species within the genus Haloarcula are Gram negative and extremely halophilic, and they can use any of several sources of carbon.

Editorial summary

This brief starts where responsible research should: with the source description of “Haloarcula quadrata” as species of archaea. Everything that follows is an evidence route, not borrowed authority.

Editorial reviewA practical orientation to terminology and classification, particularly when read beside dated observations, specimens or technical literature. The current 83-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. The account is most persuasive where Haloarcula, quadrata and species can be independently traced.
Editorial analysis

Why this record matters

The subject matters to the science & nature register because the source frames it as species of archaea. Its deeper value depends on whether names, dates, institutions and citations support that framing.

Evidence profile

Stable identifiers, scientific names and standards terminology offer the best bridge between this overview and specialist evidence. The source revision retrieved here is dated Sep 14, 2026. The linked authority identifier is Q16641164. None of the 0 selected statements returned an explicit reference.

Critical limits

A general summary may omit uncertainty, sample limits or methodological disagreement that is explicit in the technical record. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
Verify next

Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “Haloarcula quadrata”, its source revision and the description used here.
  2. Expand the search: follow Haloarcula quadrata primary sources, Haloarcula quadrata archive and Haloarcula research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “Haloarcula quadrata”?
  2. Which observation, specimen, dataset or publication supports the account?
  3. Is the terminology current, historical or disputed?
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Source & attribution

This entry incorporates text from “Haloarcula quadrata” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.