About: Hyperoartia   Sponge Permalink

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Hyperoartia is a group of jawless fishes that includes the modern lampreys and their fossil relatives, the jawless fishes of the class Anaspida. Example of hyperoartian from early in their fossil record are Endeiolepis and Euphanerops, fishes with hypocercal tails that lived during the Late Devonian Period. Some paleontologists still classify these forms among the jawless armored fishes.

AttributesValues
rdfs:label
  • Hyperoartia
rdfs:comment
  • Hyperoartia is a group of jawless fishes that includes the modern lampreys and their fossil relatives, the jawless fishes of the class Anaspida. Example of hyperoartian from early in their fossil record are Endeiolepis and Euphanerops, fishes with hypocercal tails that lived during the Late Devonian Period. Some paleontologists still classify these forms among the jawless armored fishes.
sameAs
dbkwik:paleontolog...iPageUsesTemplate
subdivision ranks
  • subgroups
Name
  • Hyperoartians
fossil range
Image caption
  • Sea lamprey from Sweden
subdivision
  • *Anaspida *Petromyzontiformes
Color
  • pink
Image width
  • 250(xsd:integer)
unranked classis
  • Hyperoartia
Phylum
regnum
  • Animalia
abstract
  • Hyperoartia is a group of jawless fishes that includes the modern lampreys and their fossil relatives, the jawless fishes of the class Anaspida. Example of hyperoartian from early in their fossil record are Endeiolepis and Euphanerops, fishes with hypocercal tails that lived during the Late Devonian Period. Some paleontologists still classify these forms among the jawless armored fishes. The only hyperoartians surviving today are lampreys, classified in the Petromyzontiformes. The discovery of the fossil Priscomyzon, pushed back the oldest known occurrence of true lampreys to the Late Devonian. The evidence of phylogeny, however, suggests that the lamprey lineage diverged much earlier from other vertebrates, rather than arising from ostracoderm fishes. The origin of Hyperoartia may therefore extend back to the early Paleozoic, if not earlier.
is unranked ordo of
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