Back Xenacoelomorpha Afrikaans مجوفات الشكل الغريبة Arabic Xenacoelomorpha Azerbaijani Xenacoelomorpha BS Xenacelomorfs Catalan Xenacoelomorpha German Xenacoelomorpha Spanish Siuglejad Estonian شگفتبیکاواکریختان Persian Xenacoelomorpha Finnish
| Xenacoelomorpha | |
|---|---|
| |
| Xenoturbella japonica, a xenacoelomorph member (xenoturbellids) | |
| |
| Proporus sp., another xenacoelomorph member (acoelomorphs) | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Subkingdom: | Eumetazoa |
| Clade: | ParaHoxozoa |
| Clade: | Bilateria |
| Phylum: | Xenacoelomorpha Philippe et al. 2011[1] |
| Subphyla | |
Xenacoelomorpha[2] (/ˌzɛnəˌsɛloʊˈmɔːrfə/) is a small phylum of bilaterian invertebrate animals, consisting of two sister groups: xenoturbellids and acoelomorphs. This new phylum was named in February 2011 and suggested based on morphological synapomorphies (physical appearances shared by the animals in the clade),[3] which was then confirmed by phylogenomic analyses of molecular data (similarities in the DNA of the animals within the clade).[2][4]
- ^ Tyler, S.; Schilling, S.; Hooge, M.; Bush, L.F. (2006–2016). "Xenacoelomorpha". Turbellarian taxonomic database. Version 1.7. Archived from the original on 9 February 2019. Retrieved 3 February 2016.
- ^ a b Philippe, H.; Brinkmann, H.; Copley, R. R.; Moroz, L. L.; Nakano, H.; Poustka, A. J.; Wallberg, A.; Peterson, K. J.; Telford, M. J. (10 February 2011). "Acoelomorph flatworms are deuterostomes related to Xenoturbella". Nature. 470 (7333): 255–258. Bibcode:2011Natur.470..255P. doi:10.1038/nature09676. PMC 4025995. PMID 21307940.
- ^ Lundin, K (1998). "The epidermal ciliary rootlets of Xenoturbella bocki (Xenoturbellida) revisited: new support for a possible kinship with the Acoelomorpha (Platyhelminthes)". Zoologica Scripta. 27 (3): 263–270. doi:10.1111/j.1463-6409.1998.tb00440.x. S2CID 85324766.
- ^ Hejnol, A.; Obst, M.; Stamatakis, A.; Ott, M.; Rouse, G. W.; Edgecombe, G. D.; et al. (2009). "Assessing the root of bilaterian animals with scalable phylogenomic methods". Proceedings of the Royal Society B: Biological Sciences. 276 (1677): 4261–4270. doi:10.1098/rspb.2009.0896. PMC 2817096. PMID 19759036.