Ivesheadiomorphs: Difference between revisions
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[[File:Pseudovendia charnwoodensis.jpg|thumb|right|''Pseudovendia charnwoodensis''.]] |
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The '''Ivesheadiomorphs'' or '''pizza disks''' are a group of Ediacaran fossils that represent the partially-decayed remains of such taxa as ''[[Charnia]]'' and ''[[Charniodiscus]]''.{{ref doi|10.1111/j.1475-4983.2010.01024.x}} |
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The "'''ivesheadiomorphs'''" are a group of fossilised structures known from [[Ediacaran]] localities in [[England]] and [[Newfoundland (island)|Newfoundland]]. They are considered to be [[Taphonomy|taphomorphs]], representing the poorly preserved biological remains of various contemporary [[taxa]] such as ''[[Charnia]]'', ''[[Charniodiscus]]'', ''[[Bradgatia]]'', ''[[Primocandelabrum]]'', ''[[Pectinifrons]]'' and others, that were effaced by partial decay by micro-organisms following death on the seafloor before burial by sediment.<ref name="Liu2011">{{Cite journal | last1 = Liu | first1 = A. G. | last2 = McIlroy | first2 = D. | last3 = Antcliffe | first3 = J. B. | last4 = Brasier | first4 = M. D. | title = Effaced preservation in the Ediacara biota and its implications for the early macrofossil record | doi = 10.1111/j.1475-4983.2010.01024.x | journal = Palaeontology | issue = 3| volume = 54| pages = 607–630| year = 2010| url = https://www.academia.edu/402997| doi-access = free }}</ref> |
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Ivesheadiomorph structures were previously described as distinct organisms, namely ''Ivesheadia lobata'' ("pizza disk"), ''Blackbrookia oaksi'', ''Shepshedia palmata''<ref name="Boynton_Ford1995">{{Cite journal | author = H. E. Boynton, T. D. Ford| title = Ediacaran Fossils from the Precambrian (Charnian Supergroup) of Charnwood Forest, Leicestershire, England | journal = Mercian Geologist | volume = 4 | issue = 19 | pages = 165–182 | year = 1995}}</ref> and ''Pseudovendia charnwoodensis''.<ref name="Boynton_Ford1979">{{Cite journal | author = H. E. Boynton, T. D. Ford| title = ''Pseudovendia charnwoodensis'' — A new Precambrian arthropod from Charnwood Forest, Leicestershire | journal = Mercian Geologist | volume = 7 | pages = 175–177 | year = 1979}}</ref> However, all of these fossils have since been rejected as valid taxa.<ref name="Liu2011" /> |
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==See also== |
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* [[List of Ediacaran genera]] |
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==References== |
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[[Category:Ediacaran life]] |
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[[Category:Ediacaran Canada]] |
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[[Category:Ediacaran Europe]] |
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{{Ediacaran-stub}} |
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Latest revision as of 13:51, 1 February 2023
The "ivesheadiomorphs" are a group of fossilised structures known from Ediacaran localities in England and Newfoundland. They are considered to be taphomorphs, representing the poorly preserved biological remains of various contemporary taxa such as Charnia, Charniodiscus, Bradgatia, Primocandelabrum, Pectinifrons and others, that were effaced by partial decay by micro-organisms following death on the seafloor before burial by sediment.[1]
Ivesheadiomorph structures were previously described as distinct organisms, namely Ivesheadia lobata ("pizza disk"), Blackbrookia oaksi, Shepshedia palmata[2] and Pseudovendia charnwoodensis.[3] However, all of these fossils have since been rejected as valid taxa.[1]
See also
[edit]References
[edit]- ^ a b Liu, A. G.; McIlroy, D.; Antcliffe, J. B.; Brasier, M. D. (2010). "Effaced preservation in the Ediacara biota and its implications for the early macrofossil record". Palaeontology. 54 (3): 607–630. doi:10.1111/j.1475-4983.2010.01024.x.
- ^ H. E. Boynton, T. D. Ford (1995). "Ediacaran Fossils from the Precambrian (Charnian Supergroup) of Charnwood Forest, Leicestershire, England". Mercian Geologist. 4 (19): 165–182.
- ^ H. E. Boynton, T. D. Ford (1979). "Pseudovendia charnwoodensis — A new Precambrian arthropod from Charnwood Forest, Leicestershire". Mercian Geologist. 7: 175–177.
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