Cristozoa
Proposed clade of chordates
| Cristozoa | |
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Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Clade: | Cristozoa |
| Included groups | |
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Cristozoa (also known as crest animals) is a grouping of animals possessing a neural crest and derivatives.[1]
It includes all the Craniata, as well as their immediate precraniate precursors. The precraniate crest animals, such Haikouella and Yunnanozoon, are all extinct and found only in Early Cambrian strata of Yunnan (southwestern China).[1][2]
References
- ^ a b Chen, J. ‐Y. (2008). "Early crest animals and the insight they provide into the evolutionary origin of craniates". Genesis. 46 (11): 623–639. doi:10.1002/dvg.20445. PMID 19003927.
- ^ Chen (2009). "The sudden appearance of diverse animal body plansduring the Cambrian explosion". The International Journal of Developmental Biology. 53 (5–6): 733–751. doi:10.1387/ijdb.072513cj. PMID 19557680.
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Extant animal phyla
- Domain
- Archaea
- Bacteria
- Eukaryota
- (major groups
- Excavata
- Diaphoretickes
- Hacrobia
- Cryptista
- Rhizaria
- Alveolata
- Stramenopiles
- Plants
- Hacrobia
- Amorphea
- Amoebozoa
- Opisthokonta
- Animals
- Fungi
- Mesomycetozoea)
| Animalia |
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| Major groups within phyla |
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- Phyla with ≥1000 extant species bolded
- Potentially dubious phyla †
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