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Taxa

Pleuronectiformes

Fish Orders

Pleuronectiformes is the traditional order name for the flatfish, a group of ray finned fish whose laterally compressed body lies on one side on the seafloor with both eyes migrated to the upward facing side during development, a distinctive adaptation among vertebrates. Some current classifications instead place the flatfish as the suborder Pleuronectoidei within the order Carangiformes, and families differ in which side they lie on: members of Pleuronectidae rest on the left with eyes on the right, while Paralichthyidae lie on the right with eyes on the left, and the more primitive genus Psettodes can develop either way.

Facts
Taxonomic Rank
Order 2
Member Count Band
100 to 1000 Species 3
Era First Appeared
Cretaceous 4
Classification
Living or Extinct
Yes 1
Connections

Parent Taxon Of

Atlantic Halibut, Species
Source Wikidata: Atlantic Halibut
Common Dab, Species
Source Common Dab (Wikidata)
Common sole, Species
Source Common sole (Wikidata)
European Plaice, Species
Source European Plaice (Wikidata)
Sources
1. Wikidata (taxon extant/extinct status)
Wikimedia Foundation / Wikidata contributorsQ59577, descriptionView the Source
2. Wikipedia: Flatfish
  • Taxonomic rank (Wikipedia confirms the entity; rank from slug/structure-wave classification)
  • In Group: Perch-Like and Related Marine Fish Orders, Lead
    Flatfish are a group of ray-finned fish belonging to the suborder Pleuronectoidei of the order Carangiformes.
View the Source
3. Catalogue of Life (ChecklistBank): Taxon metrics for Pleuronectiformes
Catalogue of Life (ChecklistBank)Taxon metrics, speciesExtantCount
Quote, Taxon metrics, speciesExtantCount
"speciesExtantCount": 823
View the Source
4. Paleobiology Database: Taxon record for Pleuronectiformes
Paleobiology DatabaseTaxon record, first appearance (firstapp_max_ma, early_interval)
Quote, Taxon record, first appearance (firstapp_max_ma, early_interval)
"taxon_name": "Pleuronectiformes" ... "firstapp_max_ma": 125.77 ... "early_interval": "Barremian"
View the Source
Wikidata: Pleuronectiformes
Wikidata Q59577, class allow-list match (w-wdresolver-0926)View the Source
Wikidata: Atlantic Halibut
Parent Taxon Of: Atlantic Halibut, Wikidata parent-taxon (P171) chainView the Source
European Plaice (Wikidata)
WikidataParent Taxon Of: European Plaice, Wikidata parent-taxon (P171) chainView the Source
Common Dab (Wikidata)
WikidataParent Taxon Of: Common Dab, Wikidata parent-taxon (P171) chainView the Source
Common sole (Wikidata)
WikidataParent Taxon Of: Common sole, Wikidata parent-taxon (P171) chainView the Source
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