Ivesheadiomorphs: Difference between revisions
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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 [[taphomorphs]] that represent 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}}</ref> |
The "'''ivesheadiomorphs'''" are a group of fossilised structures known from [[Ediacaran]] localities in [[England]] and [[Newfoundland (island)|Newfoundland]]. They are considered to be [[taphomorphs]] that represent 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" /> |
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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Revision as of 13:48, 2 January 2021
| Ivesheadiomorpha Temporal range: Early-Late Ediacaran
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| Scientific classification | |
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| Phylum: | †Ivesheadiomorpha Boynton & Ford, 1996
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The "ivesheadiomorphs" are a group of fossilised structures known from Ediacaran localities in England and Newfoundland. They are considered to be taphomorphs that represent 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
References
- ^ 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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