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Spirulida

order of molluscs

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionDec 15, 2024
Entity authorityQ1370442 ↗
Source-derived summary

Spirulida is an order of cephalopods comprising one extant species (Spirula spirula) and several extinct taxa.

Fossil record

Oldest representative: Carboniferous, though contested: see Shimanskya

Oldest uncontested representative: Late Jurassic

Classification

Taxa marked with † are extinct.

Editorial summary

The public source identifies “Spirulida” as order of molluscs. This brief keeps that definition visible, then builds a research path around Spirulida, order and molluscs.

Editorial reviewA practical starting point whose main value is the path it opens into stronger specialist and primary sources. The current 37-word lead offers orientation but no explicit four-digit date, so chronology should not be assumed. The selected authority fields contribute no independent date. Its value is orientation rather than verdict, with Spirulida, order and molluscs providing the first useful test.
Editorial analysis

Why this record matters

A short description can identify a subject without explaining its stakes. For “Spirulida”, the useful work is to connect “order of molluscs” to the records capable of establishing context and consequence.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Dec 15, 2024. The linked authority identifier is Q1370442. None of the 0 selected statements returned an explicit reference.

Critical limits

Overview language is designed for orientation and should not be treated as a substitute for the evidence cited beneath it. 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

Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.

Best used for
  • Subject orientation
  • Search vocabulary
  • Locating named sources
Verify next

The closest primary source, responsible institution and strongest cited specialist reference.

Three-step research path

  1. Establish the record: confirm the title “Spirulida”, its source revision and the description used here.
  2. Expand the search: follow Spirulida primary sources, Spirulida archive and Spirulida 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 “Spirulida”?
  2. What terminology or title could unlock a more precise catalogue search?
  3. Which institution is responsible for the underlying evidence?
Subject index

Search terms from this dossier

Source & attribution

This entry incorporates text from “Spirulida” 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.