Acosmia

Acosmia
	Fossil specimen
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	incertae sedis
Genus:	†Archotuba; Chen & Zhoi 1997
Species:	†A. maotiania
Binomial name
	†Acosmia maotiania; Chen & Zhoi 1997

Acosmia is a genus of Chengjiang biota priapulid (marine worm) in the family Acosmiidae. It is represented by a single rare species, Acosmia maotiania.[1] Later studies proposed it is a stem-group ecdysozoan.[2]

References

Hou, Xian-Guag; Aldridge, Richard; Bergstrom, Jan; Siveter, David J; Siveter, Derek; Feng, Xiang-Hong (2008-04-15). The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life. ISBN 9780470999943.
Howard, Richard J.; Edgecombe, Gregory D.; Shi, Xiaomei; Hou, Xianguang; Ma, Xiaoya (2020-11-23). "Ancestral morphology of Ecdysozoa constrained by an early Cambrian stem group ecdysozoan". BMC Evolutionary Biology. 20 (1): 156. doi:10.1186/s12862-020-01720-6. ISSN 1471-2148. PMC 7684930. PMID 33228518.

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[1] Hou, Xian-Guag; Aldridge, Richard; Bergstrom, Jan; Siveter, David J; Siveter, Derek; Feng, Xiang-Hong (2008-04-15). The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life. ISBN 9780470999943.

[2] Howard, Richard J.; Edgecombe, Gregory D.; Shi, Xiaomei; Hou, Xianguang; Ma, Xiaoya (2020-11-23). "Ancestral morphology of Ecdysozoa constrained by an early Cambrian stem group ecdysozoan". BMC Evolutionary Biology. 20 (1): 156. doi:10.1186/s12862-020-01720-6. ISSN 1471-2148. PMC 7684930. PMID 33228518.