Pacifastacus nigrescens

species of crustacean
Taxon fossil_taxon Q2087241
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Pacifastacus nigrescens

Summary

Pacifastacus nigrescens is a fossil taxon[1]. It ranks in the top 4% of fossil_taxon entities by monthly Wikipedia readership (11 views/month).[2]

Key Facts

  • Pacifastacus nigrescens's image is recorded as Pacifastacus nigrescens.jpeg[3].
  • Pacifastacus nigrescens's instance of is recorded as fossil taxon[4].
  • Pacifastacus nigrescens's taxon rank is recorded as species[5].
  • Pacifastacus nigrescens's IUCN conservation status is recorded as extinct species[6].
  • Pacifastacus nigrescens's parent taxon is recorded as Pacifastacus[7].
  • Pacifastacus nigrescens's taxon name is recorded as Pacifastacus nigrescens[8].
  • Pacifastacus nigrescens's IUCN taxon ID is recorded as 15867[9].
  • Pacifastacus nigrescens's Freebase ID is recorded as /m/02x1jsm[10].
  • Pacifastacus nigrescens's ITIS TSN is recorded as 97331[11].
  • Pacifastacus nigrescens's Encyclopedia of Life ID is recorded as 1019396[12].
  • Pacifastacus nigrescens's GBIF taxon ID is recorded as 2226996[13].
  • Pacifastacus nigrescens's WoRMS-ID for taxa is recorded as 885107[14].
  • Pacifastacus nigrescens's short name is recorded as {'lang': 'mul', 'text': 'P. nigrescens'}[15].
  • Pacifastacus nigrescens's taxon common name is recorded as {'lang': 'en', 'text': 'Sooty Crayfish'}[16].
  • Pacifastacus nigrescens's iNaturalist taxon ID is recorded as 71070[17].
  • Pacifastacus nigrescens's IRMNG ID is recorded as 10908010[18].
  • Pacifastacus nigrescens's SeaLifeBase ID is recorded as 26031[19].
  • Pacifastacus nigrescens's NAS ID is recorded as 198[20].
  • Pacifastacus nigrescens's Microsoft Academic ID is recorded as 2779646594[21].
  • Pacifastacus nigrescens's NBIC scientific name ID is recorded as 210469[22].
  • Pacifastacus nigrescens's Open Tree of Life ID is recorded as 2974329[23].
  • Pacifastacus nigrescens's NatureServe Explorer ID is recorded as 2.112853[24].
  • Pacifastacus nigrescens's Catalogue of Life ID is recorded as 7W7FS[25].

Why It Matters

Pacifastacus nigrescens ranks in the top 4% of fossil_taxon entities by monthly Wikipedia readership (11 views/month).[2] It has Wikipedia articles in 8 language editions, a strong signal of global cultural recognition.[26]

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] . Integrated Taxonomic Information System. Retrieved . wikidata.org.
  4. [6] . The IUCN Red List of Threatened Species 2022.2. Retrieved . wikidata.org.
  5. [7] . wikidata.org.
  6. [8] . Integrated Taxonomic Information System. Retrieved . wikidata.org.
  7. [9] . IUCN Red List. Retrieved . wikidata.org.
  8. [10] . Freebase Data Dumps. wikidata.org.
  9. [11] . Integrated Taxonomic Information System. Retrieved . wikidata.org.
  10. [12] . Q82486. Retrieved . wikidata.org.
  11. [13] . Global Biodiversity Information Facility. Retrieved . wikidata.org.
  12. [14] . World Register of Marine Species. Retrieved . wikidata.org.
  13. [15] . wikidata.org.
  14. [16] . IUCN Red List. Retrieved . wikidata.org.
  15. [17] . wikidata.org.
  16. [18] . Interim Register of Marine and Nonmarine Genera. Retrieved . wikidata.org.
  17. [19] . SeaLifeBase. Retrieved . wikidata.org.
  18. [20] . wikidata.org.
  19. [21] . wikidata.org.
  20. [22] . wikidata.org.
  21. [23] . Open Tree of Life reference taxonomy version 3.6. Retrieved . wikidata.org.
  22. [24] . wikidata.org.
  23. [25] . wikidata.org.

Class ancestry

  1. [1] . Wikidata. wikidata.org.

Aggregate / graph-position facts

  1. [2] . Wikimedia Foundation. dumps.wikimedia.org.
  2. [26] . Wikidata sitelinks. wikidata.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). Pacifastacus nigrescens. Retrieved May 3, 2026, from https://4ort.xyz/entity/pacifastacus-nigrescens
MLA “Pacifastacus nigrescens.” 4ort.xyz Knowledge Graph, 4ort.xyz, 3 May. 2026, https://4ort.xyz/entity/pacifastacus-nigrescens.
BibTeX @misc{4ortxyz_pacifastacus-nigrescens_2026, author = {{4ort.xyz Knowledge Graph}}, title = {{Pacifastacus nigrescens}}, year = {2026}, url = {https://4ort.xyz/entity/pacifastacus-nigrescens}, note = {Accessed: 2026-05-03}}
LLM prompt According to 4ort.xyz Knowledge Graph (aggregator of Wikidata, Wikipedia, and authoritative open-data sources): Pacifastacus nigrescens — https://4ort.xyz/entity/pacifastacus-nigrescens (retrieved 2026-05-03)

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