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Taxa

Clitellata

Class

Clitellata is a class of annelid worms characterized by the clitellum, a collar like structure that forms a reproductive cocoon during part of the life cycle. The class comprises around 8,000 species. Unlike the class Polychaeta, clitellates lack parapodia and have less developed heads.

Facts
Taxonomic Rank
Class 2
Member Count Band
Over 1000 Species 3
Era First Appeared
Silurian 4
Classification
Living or Extinct
Yes 1
Connections

Parent Taxon Of

Common Earthworm, Species
Source Common Earthworm (Wikidata)
Giant Gippsland Earthworm, Species
Source Giant Gippsland Earthworm (Wikidata)
Hirudo Medicinalis, Species
Source Hirudo Medicinalis (Wikidata)
Lumbricus Terrestris, Species
Source Common Earthworm (Wikidata)
Medicinal Leech, Species
Source Hirudo Medicinalis (Wikidata)
Sources
1. Wikidata (taxon extant/extinct status)
Wikimedia Foundation / Wikidata contributorsQ839350, descriptionView the Source
2. Wikipedia: Clitellata
  • Taxonomic rank (Wikipedia confirms the entity; rank from slug/structure-wave classification)
  • In Group: Annelid Classes, Lead
    The Clitellata are a class of annelid worms, characterized by having a clitellum, the 'collar' that forms a reproductive cocoon during part of their life cycles.
View the Source
3. Catalogue of Life (ChecklistBank): Taxon metrics for Clitellata
Catalogue of Life (ChecklistBank)Taxon metrics, speciesExtantCount
Quote, Taxon metrics, speciesExtantCount
"speciesExtantCount": 4582
View the Source
4. Paleobiology Database: Taxon record for Clitellata
Paleobiology DatabaseTaxon record, first appearance (firstapp_max_ma, early_interval)
Quote, Taxon record, first appearance (firstapp_max_ma, early_interval)
"taxon_name": "Clitellata" ... "firstapp_max_ma": 438.6 ... "early_interval": "Telychian"
View the Source
Wikidata: Clitellata
Wikidata Q839350, class allow-list match (w-wdresolver-0926)View the Source
Hirudo Medicinalis (Wikidata)
Wikidata
  • Parent Taxon Of: Medicinal Leech, Wikidata parent-taxon (P171) chain
  • Parent Taxon Of: Hirudo Medicinalis, Wikidata parent-taxon (P171) chain
View the Source
Giant Gippsland Earthworm (Wikidata)
WikidataParent Taxon Of: Giant Gippsland Earthworm, Wikidata parent-taxon (P171) chainView the Source
Common Earthworm (Wikidata)
Wikidata
  • Parent Taxon Of: Lumbricus Terrestris, Wikidata parent-taxon (P171) chain
  • Parent Taxon Of: Common Earthworm, Wikidata parent-taxon (P171) chain
View the Source
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