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Prehistoric fish are early fish that are known only from fossil records. They are the earliest known vertebrates, and include the first and extinct fish that lived through the Cambrian to the Quaternary. The study of prehistoric fish is called paleoichthyology. A few living forms, such as the coelacanth are also referred to as prehistoric fish, or even living fossils, due to their current rarity and similarity to extinct forms. Fish which have become recently extinct are not usually referred to as prehistoric fish. They were very different from what we have today. They likely were larger and had tougher scales.

Lists of various prehistoric fishes include:

• List of prehistoric jawless fish
• List of placoderms
• List of acanthodians
• List of prehistoric cartilaginous fish
• List of prehistoric bony fish
• List of sarcopterygians

See also

• Evolution of fish
• Prehistoric life
• Vertebrate paleontology

References

1. Shu, D-G., Conway Morris, S., Han, J.; et al. (January 2003). "Head and backbone of the Early Cambrian vertebrate Haikouichthys". Nature. 421 (6922): 526–529. Bibcode:2003Natur.421..526S. doi:10.1038/nature01264. PMID 12556891. S2CID 4401274.{{cite journal}}: CS1 maint: multiple names: authors list (link)

Further reading

• Janvier, Philippe (1998) Early Vertebrates, Oxford, New York: Oxford University Press. ISBN 0-19-854047-7
• Long, John A. (1996) The Rise of Fishes: 500 Million Years of Evolution, Baltimore: The Johns Hopkins University Press. ISBN 0-8018-5438-5

External links

• Fossil Fish

v t e Evolution of fish
Fish Timeline of fish evolution
Forerunners	Basal member †Pikaia Cephalochordate †Cathaymyrus Lancelet Olfactores †Haikouella Tunicate †Myllokunmingiidae? (†Haikouichthys, †Myllokunmingia) †Zhongxiniscus?
Jawless fish	Cyclostomata Hagfish Hyperoartia Lamprey †Conodonts †Protoconodonta? †Paraconodontida †Conodonta †Ostracoderms †Pteraspidomorphi †Thelodonti †Anaspida †Cephalaspidomorphi †Galeaspida †Pituriaspida †Osteostraci
Jawed fish	†Placoderms †Antiarchi †Arthrodira †Brindabellaspida †Petalichthyida †Phyllolepida †Ptyctodontida †Rhenanida †Acanthothoraci †Pseudopetalichthyida? †Stensioellida? †Acanthodii †Acanthodiformes †"Climatiiformes" †Diplacanthiformes †Ischnacanthiformes Cartilaginous Elasmobranchii †Ctenacanthiformes †Hybodontiformes †Phoebodontiformes †Xenacanthida Ray Shark Holocephali †Eugeneodontida †Iniopterygiformes †Petalodontiformes †Symmoriiformes Chimaera Bony Lobe-finned †Onychodontiformes Coelacanth Rhipidistia †Porolepiformes Lungfish Tetrapodomorpha Ray-finned †"Palaeonisciformes" Cladistia Polypteriformes Chondrostei Acipenseriformes Neopterygii †Pycnodontiformes Halecomorphi Ginglymodi Teleost
Lists	Lists of prehistoric fish spiny sharks placoderms cartilaginous bony lobe-finned List of transitional fossils
Related	Prehistoric life Transitional fossils Vertebrate paleontology
† extinct

v t e Fish
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Lists	Aquarium life Blind Fish common names Fish families Glossary of ichthyology Largest Smallest Threatened rays sharks Prehistoric more lists...
Category WikiProject

• Lists of species lists
• Lists of prehistoric fish
• Paleontology lists