Haikouichthys
Extinct genus of jawless fishes / From Wikipedia, the free encyclopedia
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Haikouichthys /ˌhaɪkuˈɪkθɪs/ is an extinct genus of craniate (animals with notochords and distinct heads) that lived 518 million years ago, during the Cambrian explosion of multicellular life. Haikouichthys had a defined skull and other characteristics that have led paleontologists to label it a true craniate, and even to be popularly characterized as one of the earliest fishes. Cladistic analysis indicates that the animal is probably a basal chordate or a basal craniate;[2] but it does not possess sufficient features to be included uncontroversially even in either stem group.[3][4] It was formally described in 1999.[5]
Quick Facts Scientific classification, Binomial name ...
Haikouichthys | |
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Restoration | |
Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Chordata |
Infraphylum: | Agnatha |
Order: | †Myllokunmingiida |
Family: | †Myllokunmingiidae |
Genus: | †Haikouichthys Luo et al., 1999 |
Species: | †H. ercaicunensis |
Binomial name | |
†Haikouichthys ercaicunensis Luo et al., 1999 | |
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