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Hemicidaridae

family of extinct sea urchins
Taxon fossil_taxon Q15535510
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Hemicidaridae

Summary

Hemicidaridae is a fossil taxon[1]. Hemicidaridae ranks in the top 4% of fossil_taxon entities by monthly Wikipedia readership (4 views/month).[2]

Key Facts

  • Hemicidaridae's image is recorded as Hemicidaridae - Asterocidaris species.JPG[3].
  • Hemicidaridae's instance of is recorded as fossil taxon[4].
  • Hemicidaridae's taxon rank is recorded as family[5].
  • Hemicidaridae's parent taxon is recorded as Carinacea[6].
  • Hemicidaridae's taxon name is recorded as Hemicidaridae[7].
  • Hemicidaridae's Commons category is recorded as Hemicidaridae[8].
  • Hemicidaridae's start time is recorded as -189600000-00-00T00:00:00Z[9].
  • Hemicidaridae's end time is recorded as -112600000-00-00T00:00:00Z[10].
  • Hemicidaridae's Fossilworks taxon ID is recorded as 168412[11].
  • Hemicidaridae's GBIF taxon ID is recorded as 3249603[12].
  • Hemicidaridae's WoRMS-ID for taxa is recorded as 510759[13].
  • Hemicidaridae's topic's main category is recorded as Category:Hemicidaridae[14].
  • Hemicidaridae's Google Knowledge Graph ID is recorded as /g/1ylhlhkyn[15].
  • Hemicidaridae's IRMNG ID is recorded as 111788[16].
  • Hemicidaridae's Echinoid Directory ID is recorded as 1454[17].
  • Hemicidaridae's NBIC scientific name ID is recorded as 206113[18].
  • Hemicidaridae's Open Tree of Life ID is recorded as 4950517[19].
  • Hemicidaridae's Catalogue of Life ID is recorded as 7NJLN[20].
  • Hemicidaridae's Yale LUX ID is recorded as concept/fedca464-4a2b-4ca7-948a-c31b6e1229b7[21].

Why It Matters

Hemicidaridae ranks in the top 4% of fossil_taxon entities by monthly Wikipedia readership (4 views/month).[2]

References

Programmatic citations — every numbered marker resolves to a verifiable graph row below.

Direct Wikidata claims

  1. [3] ↑ . wikidata.org.
  2. [4] ↑ . wikidata.org.
  3. [5] ↑ . wikidata.org.
  4. [6] ↑ . wikidata.org.
  5. [7] ↑ . wikidata.org.
  6. [8] ↑ . wikidata.org.
  7. [9] ↑ . wikidata.org.
  8. [10] ↑ . wikidata.org.
  9. [11] ↑ . Fossilworks. Retrieved . wikidata.org.
  10. [12] ↑ . Global Biodiversity Information Facility. Retrieved . wikidata.org.
  11. [13] ↑ . World Register of Marine Species. Retrieved . wikidata.org.
  12. [14] ↑ . wikidata.org.
  13. [15] ↑ . wikidata.org.
  14. [16] ↑ . Interim Register of Marine and Nonmarine Genera. Retrieved . wikidata.org.
  15. [17] ↑ . wikidata.org.
  16. [18] ↑ . wikidata.org.
  17. [19] ↑ . Open Tree of Life reference taxonomy version 3.6. Retrieved . wikidata.org.
  18. [20] ↑ . wikidata.org.
  19. [21] ↑ . wikidata.org.

Class ancestry

  1. [1] ↑ . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] ↑ . Wikimedia Foundation. dumps.wikimedia.org.

📑 Cite this page

Use these citations when quoting this entity in research, articles, AI prompts, or wherever provenance matters. We aggregate Wikidata + Wikipedia + authoritative open-data sources; the stitched, scored, cross-referenced view is what 4ort.xyz contributes.

APA 4ort.xyz Knowledge Graph. (2026). Hemicidaridae. Retrieved May 3, 2026, from https://4ort.xyz/entity/hemicidaridae
MLA “Hemicidaridae.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/hemicidaridae.
BibTeX @misc{4ortxyz_hemicidaridae_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Hemicidaridae}}, year = {2026}, url = {https://4ort.xyz/entity/hemicidaridae}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Hemicidaridae — https://4ort.xyz/entity/hemicidaridae (retrieved 2026-05-03)

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