Panarthropoda
Panarthropoda Temporal range:
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Superphylum: | Ecdysozoa |
(unranked): | Panarthropoda Nielsen, 1995 |
Phyla | |
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Panarthropoda is a proposed animal clade combining the extant phyla Arthropoda, Tardigrada and Onychophora,[1] Not all studies support it,[2] but most do, including neuroanatomical,[3] mitogenomic[4] and palaeontological[5][6] studies. Originally, they were considered to be closely related to the annelids, grouped together as the Articulata, but newer studies place them among the Ecdysozoa.
Common characteristics of the Panarthropoda include the presence of legs and claws, a ventral nervous system, and a segmented body.
Panarthropoda |
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Sialomorpha a genus of mite and tardigrade like microinvertebrate discovered in Dominican amber in 2019 also belongs to this group, thought its exact placement is uncertain.[7]
See also
References
- ^ Telford, M. J (27 April 2008). "The evolution of the Ecdysozoa". Philosophical Transactions of the Royal Society B: Biological Sciences. 363 (1496): 1529–1537. doi:10.1098/rstb.2007.2243. PMC 2614232. PMID 18192181.
- ^ Dunn, C. W.; Hejnol, A.; Matus, D. Q.; Pang, K.; Browne, W. E.; Smith, S. A.; Seaver, E.; Rouse, G. W.; Obst, M.; Edgecombe, G. D.; Sørensen, M. V.; Haddock, S. H. D.; Schmidt-Rhaesa, A.; Okusu, A.; Kristensen, R. M. B.; Wheeler, W. C.; Martindale, M. Q.; Giribet, G. (10 April 2008). "Broad phylogenomic sampling improves resolution of the animal tree of life". Nature. 452 (7188): 745–749. doi:10.1038/nature06614. PMID 18322464.
- ^ Persson, Dennis K. (November 2012). "Neuroanatomy of Halobiotus crispae (Eutardigrada: Hypsibiidae): Tardigrade brain structure supports the clade panarthropoda". Journal of Morphology. 273 (11): 1227–1245. doi:10.1002/jmor.20054. PMID 22806919.
- ^ Rota-Stabelli, O.; Kayal, E.; Gleeson, D.; Daub, J.; Boore, J.; Telford, M.; Pisani, D.; Blaxter, M.; Lavrov, D. (2010). "Ecdysozoan mitogenomics: evidence for a common origin of the legged invertebrates, the Panarthropoda". Genome Biology and Evolution. 2: 425–440. doi:10.1093/gbe/evq030. PMC 2998192. PMID 20624745.
- ^ Smith, Martin R.; Ortega-Hernández, Javier (2014). "Hallucigenia's onychophoran-like claws and the case for Tactopoda" (PDF). Nature. 514 (7522): 363–366. doi:10.1038/nature13576. PMID 25132546.
- ^ Ou, Qiang (2012). "Cambrian lobopodians and extant onychophorans provide new insights into early cephalization in Panarthropoda". Nature Communications. 3: 1261. doi:10.1038/ncomms2272. PMC 3535342. PMID 23232391.
- ^ Poinar, George; Nelson, Diane R. (2019). "A new microinvertebrate with features of mites and tardigrades in Dominican amber". Invertebrate Biology. 138 (4): e12265. doi:10.1111/ivb.12265. ISSN 1744-7410.