Cyclostomi
Superclass of jawless fishes / From Wikipedia, the free encyclopedia
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"Cyclostomata" redirects here. For the order of bryozoans, see Cyclostomatida.
Cyclostomi, often referred to as Cyclostomata /sɪkloʊˈstɒmətə/, is a group of vertebrates that comprises the living jawless fishes: the lampreys and hagfishes. Both groups have jawless mouths with horny epidermal structures that function as teeth called ceratodontes, and branchial arches that are internally positioned instead of external as in the related jawed fishes.[1] The name Cyclostomi means "round mouths".[2][3][4] It was named by Joan Crockford-Beattie.[5]
Quick Facts Scientific classification, Classes ...
Cyclostomi | |
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Sea lamprey from Sweden | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Infraphylum: | Agnatha |
Superclass: | Cyclostomi Duméril, 1806 |
Classes | |
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