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{{Short description|Order of jawless fishes}}
{{refimprove|date=April 2016}}
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{{Automatic taxobox

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{{taxobox
| fossil_range =
| fossil_range =
| image = Origin of Vertebrates Fig 013.jpg
| image = Origin of Vertebrates Fig 013.jpg
| image_caption = ''[[Auchenaspis]]'' (''[[Thyestes (fish)|Thyestes]]'') ''verrucosus'', natural size. ''[https://en.wikisource.org/wiki/Origin_of_Vertebrates/Chapter_I The Origin of Vertebrates]'' by [[Walter Holbrook Gaskell]] 1908, Fig. 13, from Woodward)
| image_caption = ''[[Auchenaspis]]'' sp.<ref name=auchenaspis></ref> from ''[https://en.wikisource.org/wiki/Origin_of_Vertebrates/Chapter_I The Origin of Vertebrates]'' by [[Walter Holbrook Gaskell]] 1908, Fig. 13, from Woodward)
| regnum = [[Animal]]ia
| taxon = Thyestiida
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| authority = Janvier 1996
| phylum = [[Chordata]]
| classis = †[[Osteostraci]]
| ordo = †'''Thyestiida'''
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| ordo_authority = Janvier 1996
| subdivision_ranks = Families
| subdivision_ranks = Families
⚫
| subdivision = * †[[Tannuaspididae]]<ref name=Mark-Kurik>A new tremataspidid (Vertebrata, Osteostraci, Thyestiida) from the Devonian of northern Urals, with remarks on tannuaspidids. Elga Mark-Kurik and Philippe Janvier, Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 01/1997; 206(3), pages 405-421</ref>
| subdivision =
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* †[[Tannuaspididae]]<ref name=Mark-Kurik>A new tremataspidid (Vertebrata, Osteostraci, Thyestiida) from the Devonian of northern Urals, with remarks on tannuaspidids. Elga Mark-Kurik and Philippe Janvier, Neues Jahrbuch fur Geologie und Palaontologie - Abhandlungen 01/1997; 206(3), pages 405-421</ref>
* †[[Thyestiidae]]
* †[[Thyestiidae]]
* †[[Tremataspididae]]
* †[[Tremataspididae]]
| synonyms =
| synonyms =
}}
}}
'''Thyestiida''' was an order of bony-armored jawless fish in the class [[Osteostraci]].


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'''Thyestiida''' is an order of bony-armored jawless fish in the [[extinct taxon|extinct]] [[vertebrate]] class [[Osteostraci]].<ref>The origin and early evolution of the Osteostraci (Vertebrata): A phylogeny for the Thyestiida. Robert S. Sansom, Journal of Systematic Palaeontology, Volume 6, Issue 3, 2008, pages 317-332, {{doi|10.1017/S1477201907002386}}</ref>

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[[File:Osteostraci Janvier.gif|thumb|left|The osteostracans reconstructed here belong to the major clade [[Cornuata]], whose generalised morphology is exemplified by the [[zenaspidid]] ''[[Zenaspis]]'' (bottom left). Some highly derived head-shield morphologies are exemplified by the [[Benneviaspidida|benneviaspidid]]s ''[[Hoelaspis]]'' (top right) and ''[[Tauraspis]]'' (top left), or the '''thyestiid''' ''[[Tremataspis]]'' (bottom right). The latter, of the family [[Tremataspididae]], has lost the paired fins, possibly as a consequence of an adaptation to burrowing habits.<ref>[[Philippe Janvier|Janvier, Philippe]] (1997) [http://tolweb.org/Osteostraci/14842 Osteostraci] ''The Tree of Life Web Project''.</ref>]]
{{cladogram
{{cladogram
| title = Thyestiida
| title = Thyestiida
| caption = Cladogram, according to Sansom, 2009<ref name=SRS09>{{Cite journal | last1 = Sansom | first1 = R. S. | doi = 10.1017/S1477201908002551 | title = Phylogeny, classification and character polarity of the Osteostraci (Vertebrata) | journal = Journal of Systematic Palaeontology | volume = 7 | pages = 95–115| year = 2009 }}</ref>
| caption = Cladogram
| clades = {{clade| style=font-size:75%;line-height:75%;
| clades = {{clade| style=font-size:75%;line-height:75%;
| label1 = [[Thyestiida]]
| label1 = Thyestiida
| 1 = {{clade
| 1 = {{clade
| label1=
| label1=
|1= ''[[Illemoraspis]]''<ref>The anatomy, affinity and phylogenetic significance of Ilemoraspis kirkinskayae (Osteostraci) from the Devonian of Siberia. Robert S. Sansom, Sergei A. Rodygin and Philip C. J. Donoghue, Journal of Vertebrate Paleontology, Volume 28, Issue 3, 2008, pages 613-625, {{doi|10.1671/0272-4634(2008)28[613:TAAAPS]2.0.CO;2}}</ref>
|1= ''[[Illemoraspis]]''
|label2=
|label2=
|2={{clade
|2={{clade
|1=''[[Procephalaspis]]''
|1=''[[Procephalaspis]]''
|2={{clade
|2={{clade
|1=''[[Auchenaspis]]''<ref name=auchenaspis>A review of the problematic Osteostracan genus Auchenaspis and its role in Thyestidian evolution. Robert Sansom, Palaeontology, Volume 50, Issue 4, pages 1001–1011, July 2007, {{doi|10.1111/j.1475-4983.2007.00686.x}}</ref>
|1=''[[Auchenaspis]]''
|2={{clade
|2={{clade
|1=''[[Thyestes (fish)|Thyestes]]''
|1=''[[Thyestes (fish)|Thyestes]]''
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}}
}}
}}
}}
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[[File:Osteostraci Janvier.gif|thumb|left|The osteostracans reconstructed here belong to the major clade [[Cornuata]], whose generalised morphology is exemplified by the [[zenaspidid]] ''[[Zenaspis]]'' (bottom left). Some highly derived head-shield morphologies are exemplified by the [[Benneviaspidida|benneviaspidid]]s ''[[Hoelaspis]]'' (top right) and ''[[Tauraspis]]'' (top left), or the [[Thyestiida|thyestiid]] ''[[Tremataspis]]'' (bottom right). The latter has lost the paired fins, possibly as a consequence of an adaptation to burrowing habits.<ref>[[Philippe Janvier|Janvier, Philippe]] (1997) [http://tolweb.org/Osteostraci/14842 Osteostraci] ''The Tree of Life Web Project''.</ref>]]


== References ==
== References ==
{{reflist}}
{{Reflist}}
⚫
* The origin and early evolution of the Osteostraci (Vertebrata): A phylogeny for the Thyestiida. Robert S. Sansom, Journal of Systematic Palaeontology, Volume 6, Issue 3, 2008, pages 317-332, {{doi|10.1017/S1477201907002386}}


== External links ==
== External links ==
<!-- * {{wikispecies-inline}}
<!-- * {{Wikispecies-inline}}
* {{commons-inline}} -->
* {{commons-inline}} -->
* [http://fossilworks.org/cgi-bin/bridge.pl?a=taxonInfo&taxon_no=259750 Thyestiida] at [[Fossilworks|fossilworks.org]] (retrieved 21 April 2016)
* [https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=259750 Thyestiida] at [[Fossilworks|fossilworks.org]] (retrieved 21 April 2016)

{{Osteostraci}}
{{Taxonbar|from=Q15255592}}


[[Category:Osteostraci]]
[[Category:Osteostraci]]
[[Category:Prehistoric jawless fish orders]]
[[Category:Prehistoric jawless fish orders]]


{{paleo-fish-stub}}


{{stub}}
{{Paleo-jawless-fish-stub}}

Latest revision as of 09:08, 18 November 2024

Thyestiida
Auchenaspis sp.[2] from The Origin of Vertebrates by Walter Holbrook Gaskell 1908, Fig. 13, from Woodward)
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: †Osteostraci
Order: †Thyestiida
Janvier 1996
Families

Thyestiida is an order of bony-armored jawless fish in the extinct vertebrate class Osteostraci.[3]

The osteostracans reconstructed here belong to the major clade Cornuata, whose generalised morphology is exemplified by the zenaspidid Zenaspis (bottom left). Some highly derived head-shield morphologies are exemplified by the benneviaspidids Hoelaspis (top right) and Tauraspis (top left), or the thyestiid Tremataspis (bottom right). The latter, of the family Tremataspididae, has lost the paired fins, possibly as a consequence of an adaptation to burrowing habits.[4]
Thyestiida
Thyestiida
Cladogram, according to Sansom, 2009[7]

References

[edit]
  1. ^ a b A new tremataspidid (Vertebrata, Osteostraci, Thyestiida) from the Devonian of northern Urals, with remarks on tannuaspidids. Elga Mark-Kurik and Philippe Janvier, Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen 01/1997; 206(3), pages 405-421
  2. ^ a b A review of the problematic Osteostracan genus Auchenaspis and its role in Thyestidian evolution. Robert Sansom, Palaeontology, Volume 50, Issue 4, pages 1001–1011, July 2007, doi:10.1111/j.1475-4983.2007.00686.x
  3. ^ The origin and early evolution of the Osteostraci (Vertebrata): A phylogeny for the Thyestiida. Robert S. Sansom, Journal of Systematic Palaeontology, Volume 6, Issue 3, 2008, pages 317-332, doi:10.1017/S1477201907002386
  4. ^ Janvier, Philippe (1997) Osteostraci The Tree of Life Web Project.
  5. ^ The anatomy, affinity and phylogenetic significance of Ilemoraspis kirkinskayae (Osteostraci) from the Devonian of Siberia. Robert S. Sansom, Sergei A. Rodygin and Philip C. J. Donoghue, Journal of Vertebrate Paleontology, Volume 28, Issue 3, 2008, pages 613-625, doi:10.1671/0272-4634(2008)28[613:TAAAPS2.0.CO;2]
  6. ^ New data on the exoskeleton of the osteostracan genus Aestiaspis (Agnatha) from the Silurian of Saaremaa Island (Estonia) and the Severnaya Zemlya Archipelago (Russia). O. B. Afanassieva and T. Märss, Paleontological Journal February 2014, Volume 48, Issue 1, pages 74-78, doi:10.1134/S003103011401002X
  7. ^ Sansom, R. S. (2009). "Phylogeny, classification and character polarity of the Osteostraci (Vertebrata)". Journal of Systematic Palaeontology. 7: 95–115. doi:10.1017/S1477201908002551.
[edit]


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