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Agnatha

Agnatha

Additional Functions

Grouping

Belong­ing to

Gaeabionta  ⇒ Domäne: Eukaryota  ⇒ Reich: Animalia  ⇒ Mittelreich: Eumetazoa  ⇒ Klade: Triploblastica  ⇒ Klade: Nephrozoa  ⇒ Abzweig: Deuterostomia  ⇒ Stamm: Chordata  ⇒ Unterstamm: Vertebrata

Taxo­nomic seg­ment

Überklasse

This mentioned taxonomy is an attempt to make an conclusive assignment from the different classifications of various scientists. Because the taxonomy may change due to the latest investigative methods and other findings, our map is a guide only.

Name from

Corre­spond­ing author (Name, Year)

Cope, 1889

Other languages

scientific

Agnatha

Misspelling

scientific

Agnathi

Cope, 1889
Ref.: G. Säve-Söderbergh. 1934. Some points of view concerning the evolution of the Vertebrates and the classification of this group. Arkiv för Zoologi 26A(17):1-20

Detailed description

Zusammen mit den Kiefermäulern (Gnathostomata) bilden die Kieferlosen den Stamm der Wirbeltiere. Die kieferlosen Wirbeltiere nehmen nur einen kleinen Teil ein.

Agnatha waren im Altpaläozoikum kieferlose fossile Panzerfische (Ostracodermen). Rezent sind sie in Form der Cyclostomen (Rundmäuler, wie das Neunauge) vertreten.

Lebenszeitraum in Million Jahren (Ma)

Start age: 516 Ma - End age: 393.3 Ma
391.8
411.2
421.3
428.2
443.7
460.9
478.6
496
506.5
521
Eifelian
Emsian
Pragian
Lochkovian
Ludfordian
Gorstian
Homerian
Sheinwoodian
Telychian
Aeronian
Rhuddanian
Hirnantian
Katian
Sandbian
Darriwilian
Dapingian
Floian
Tremadocian
Stage 10
Stage 9
Paibian
Guzhangian
Drumian
Stage 5
Stage 4
Stage 3
Middle Devonian
Lower Devonian
Pridoli
Ludlow
Wenlock
Llandovery
Upper Ordovician
Middle Ordovician
Lower Ordovician
Furongian
Series 3
Series 2
Devonian
Silurian
Ordovician
Cambrian

Reference- and Source indication, Literature

Automatic Links to external internet sources (Responsibility is with the operator)

Search for taxonomy at PaleobioDB.org
Search for taxonomy at Fossilworks
Search for taxonomy at The Taxonomicon

Next lower taxonomy level

On the same taxonomic level (siblings) (Count: 22)

Occurrences (3)

Locations with GPS information

References by PBDB, License: CC BY

  • P. J. Wagner, 2020 - Paleozoic Gastropod, Rostroconch, Helcionelloid and Tergomyan Database (2006 - 2020) - (), - (compendium, English)
  • J. A. Long, 2011 - - The Rise of Fishes: 500 Million Years of Evolution (Second Edition) (), 1-287 (book, English)
  • R. W. Gess, 2006 - A lamprey from the Devonian period of South Africa - Nature (443), 981-984 (journal article, English)
  • T. Märss, 2004 - Thelodonts and distribution of associated conodonts from the Llandovery-lowermost Lochkovian of the Welsh Borderland - Palaeontology (47), 1211-1265 (journal article, English)
  • D. Shu, 2003 - A paleontological perspective of vertebrate origins - Chinese Science Bulletin (48), 725-735 (journal article, English)
  • N. Takezaki, 2003 - Molecular phylogeny of early vertebrates: monophyly of the agnathans as revealed by sequences of 35 genes - Molecular Biology and Evolution (20), 287-292 (journal article, English)
  • T. M. Marss, 2002 - New thelodont (Agnatha) and possible chondrichthyan (Gnathostomata) taxa established in the Silurian and Lower Devonian of the Canadian Arctic Archipelago - Proceedings of the Estonian Academy of Sciences, Geology (51), 88-120 (journal article, English)
  • J. J. Sepkoski, Jr., 2002 - A compendium of fossil marine animal genera - Bulletins of American Paleontology (363), 1-560 (serial monograph, English)
  • T. Marss, 2002 - Ordovician and Lower Silurian thelodonts from Severnaya Zemlya Archipelago (Russia) - Geodiversitas (24), 381-404 (journal article, English)
  • V. Karatajute-Talima, 2002 - Upper Silurian thelodonts from Severnaya Zemlya Archipelago (Russia) - Geodiversitas (24), 405-443 (journal article, English)
  • K. L. Soehn, 2001 - New and biostratigraphically useful thelodonts from the Silurian of the Mackenzie Mountains, Northwest Territories, Canada - Journal of Vertebrate Paleontology (21), 651-659 (journal article, English)
  • B.-D. Erdtmann, 2000 - A possible agnathan plate from the lower Arenig (Lower Ordovician) of South Bolivia - Journal of Vertebrate Paleontology (20), 394-399 (journal article, English)
  • D. Shu, 1999 - Lower Cambrian vertebrates from south China - Nature (402), 42-46 (journal article, English)
  • T. Märss, 1998 - Articulated thelodonts (Agnatha) of Scotland - (88), 143-195 (journal article, English)
  • V. Karatajute-Talimaa, 1997 - Taxonomy of loganiid thelodonts - Modern Geology (21), 1-15 (journal article, English)
  • R. J. Aldridge, 1996 - Late Llandovery thelodonts and conodonts from the Kilbride Formation, Co. Galway, western Ireland - Geological Journal (31), 359-367 (journal article, English)
  • H. C. Stetson, 1931 - Studies on the morphology of the Heterostraci - Journal of Geology (39), 141-154 (journal article, English)