Acosmia: Difference between revisions
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'''''Acosmia''''' is an extinct genus of [[marine worm]] from the [[Cambrian]] aged [[Chengjiang biota]] of Yunnan, China. It is represented by a single rare species, '''''Acosmia maotiania'''''.<ref>{{Cite book|url=https://books.google.com/books?id=LZD-MQtfMt0C&dq=Acosmia+maotiania&pg=PA68|title=The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life|isbn=9780470999943|last1=Hou|first1=Xian-Guag|last2=Aldridge|first2=Richard|last3=Bergstrom|first3=Jan|last4=Siveter|first4=David J|last5=Siveter|first5=Derek|last6=Feng|first6=Xiang-Hong|date=2008-04-15|publisher=John Wiley & Sons }}</ref> It was likely a burrowing animal that fed by [[Deposit feeder|deposit feeding]]. While originally suggested to be a [[priapulid]] (penis worm), a 2020 study proposed to be a stem-group [[ecdysozoa]]n, due to lacking the radial pharygneal armature that characterises modern ecdysozoans, including priapulids.<ref>{{Cite journal |last1=Howard |first1=Richard J. |last2=Edgecombe |first2=Gregory D. |last3=Shi |first3=Xiaomei |last4=Hou |first4=Xianguang |last5=Ma |first5=Xiaoya |date=2020-11-23 |title=Ancestral morphology of Ecdysozoa constrained by an early Cambrian stem group ecdysozoan |journal=BMC Evolutionary Biology |language=en |volume=20 |issue=1 |pages=156 |doi=10.1186/s12862-020-01720-6 |issn=1471-2148 |pmc=7684930 |pmid=33228518 |bibcode=2020BMCEE..20..156H |doi-access=free }}</ref> |
'''''Acosmia''''' is an extinct genus of [[marine worm]] from the [[Cambrian]] aged [[Chengjiang biota]] of Yunnan, China. It is represented by a single rare species, '''''Acosmia maotiania''''', that reached 45 mm in length and 9 mm in width.<ref>{{Cite book|url=https://books.google.com/books?id=LZD-MQtfMt0C&dq=Acosmia+maotiania&pg=PA68|title=The Cambrian Fossils of Chengjiang, China: The Flowering of Early Animal Life|isbn=9780470999943|last1=Hou|first1=Xian-Guag|last2=Aldridge|first2=Richard|last3=Bergstrom|first3=Jan|last4=Siveter|first4=David J|last5=Siveter|first5=Derek|last6=Feng|first6=Xiang-Hong|date=2008-04-15|publisher=John Wiley & Sons }}</ref> It was likely a burrowing animal that fed by [[Deposit feeder|deposit feeding]].<ref name=Howard2020/> While originally suggested to be a [[priapulid]] (penis worm), a 2020 study proposed to be a stem-group [[ecdysozoa]]n, due to lacking the radial pharygneal armature that characterises modern ecdysozoans, including priapulids.<ref name=Howard2020>{{Cite journal |last1=Howard |first1=Richard J. |last2=Edgecombe |first2=Gregory D. |last3=Shi |first3=Xiaomei |last4=Hou |first4=Xianguang |last5=Ma |first5=Xiaoya |date=2020-11-23 |title=Ancestral morphology of Ecdysozoa constrained by an early Cambrian stem group ecdysozoan |journal=BMC Evolutionary Biology |language=en |volume=20 |issue=1 |pages=156 |doi=10.1186/s12862-020-01720-6 |issn=1471-2148 |pmc=7684930 |pmid=33228518 |bibcode=2020BMCEE..20..156H |doi-access=free }}</ref> |
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==References== |
==References== |
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Revision as of 09:04, 16 June 2024
| Acosmia Temporal range:
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| Fossil specimen | |
Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Superphylum: | Ecdysozoa |
| Genus: | †Acosmia Chen & Zhoi 1997 |
| Species: | †A. maotiania
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| Binomial name | |
| †Acosmia maotiania Chen & Zhoi 1997
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Acosmia is an extinct genus of marine worm from the Cambrian aged Chengjiang biota of Yunnan, China. It is represented by a single rare species, Acosmia maotiania, that reached 45 mm in length and 9 mm in width.[1] It was likely a burrowing animal that fed by deposit feeding.[2] While originally suggested to be a priapulid (penis worm), a 2020 study proposed to be a stem-group ecdysozoan, due to lacking the radial pharygneal armature that characterises modern ecdysozoans, including priapulids.[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. John Wiley & Sons. ISBN 9780470999943.
- ^ a b 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. Bibcode:2020BMCEE..20..156H. doi:10.1186/s12862-020-01720-6. ISSN 1471-2148. PMC 7684930. PMID 33228518.
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