Agnatha (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Agnatha" in English language version.

refsWebsite

Global rank English rank

29doi.org

2^nd place

26nih.gov

4^th place

20harvard.edu

18^th place

17^th place

8semanticscholar.org

11^th place

8^th place

5worldcat.org

5^th place

4books.google.com

3^rd place

3web.archive.org

1^st place

2handle.net

102^nd place

76^th place

1nerc.ac.uk

9,617^th place

5,568^th place

1aquaticcommunity.com

low place

1bristol.ac.uk

9,207^th place

5,645^th place

1sciencedirect.com

149^th place

178^th place

1berkeley.edu

580^th place

462^nd place

1researchgate.net

120^th place

125^th place

1jstor.org

26^th place

20^th place

1hal.science

low place

1palaeos.com

low place

1helsinki.fi

1,670^th place

2,355^th place

aquaticcommunity.com

"Hagfish". Aquaticcommunity.com. Retrieved 2013-06-30.

berkeley.edu

ucmp.berkeley.edu

Speer, Brian R. (1997). "Introduction to the Myxini". U.C. Museum of Paleontology. University of California, Berkeley. Archived from the original on 2017-12-15. Retrieved 2013-02-21.

books.google.com

Sarjeant WA, Halstead LB (1995). Vertebrate fossils and the evolution of scientific concepts: Writings in tribute to Beverly Halstead. Gordon and Breach. ISBN 978-2-88124-996-9.
Ahlberg PE (2001). Major events in early vertebrate evolution: Palaeontology, phylogeny, genetics, and development. Washington, DC: Taylor & Francis. p. 188. ISBN 978-0-415-23370-5.
Patterson, Colin (1987). Molecules and Morphology in Evolution: Conflict or compromise?. Cambridge, UK: Cambridge University Press. p. 142. ISBN 978-0-521-32271-3.
Hall, Brian Keith; Hanken, James (1993). The Skull. Chicago, IL: University of Chicago Press. p. 131. ISBN 978-0-226-31568-3.

bristol.ac.uk

donoghue.blogs.bristol.ac.uk

Sweet, W. C.; Donoghue, P. C. J. (2001). "Conodonts: past, present and future" (PDF). Journal of Paleontology. 75 (6): 1174–1184. Bibcode:2001JPal...75.1174S. doi:10.1666/0022-3360(2001)075<1174:CPPF>2.0.CO;2. ISSN 0022-3360. S2CID 53395896. Archived (PDF) from the original on 2022-10-30.

doi.org

Yang, Chuan; Li, Xian-Hua; Zhu, Maoyan; Condon, Daniel J.; Chen, Junyuan (2018). "Geochronological constraint on the Cambrian Chengjiang biota, South China" (PDF). Journal of the Geological Society. 175 (4): 659–666. Bibcode:2018JGSoc.175..659Y. doi:10.1144/jgs2017-103. ISSN 0016-7649. S2CID 135091168.
Märss, T.; Miller, C.G. (2004). "Thelodonts and distribution of associated conodonts from the Llandovery-lowermost Lochkovian of the Welsh Borderland". Palaeontology. 47 (5): 1211–1265. Bibcode:2004Palgy..47.1211M. doi:10.1111/j.0031-0239.2004.00409.x. [W. Kiessling/M. Krause/E. Ito]
Ruggiero, Michael; Gordon, Dennis P.; Orrell, Thomas M.; Bailly, Nicolas (April 2015). "A Higher Level Classification of All Living Organisms". PLOS One. 10 (4): e0119248. Bibcode:2015PLoSO..1019248R. doi:10.1371/journal.pone.0119248. PMC 4418965. PMID 25923521.
Heimberg, Alysha M.; Cowper-Sal·lari, Richard; Sémon, Marie; Donoghue, Philip C.J.; Peterson, Kevin J. (2010-11-09). "microRNAs reveal the interrelationships of hagfish, lampreys, and gnathostomes and the nature of the ancestral vertebrate". Proceedings of the National Academy of Sciences. 107 (45): 19379–19383. doi:10.1073/pnas.1010350107. PMC 2984222. PMID 20959416.
Mallatt, J.; Sullivan, J. (December 1998). "28S and 18S rDNA sequences support the monophyly of lampreys and hagfishes". Molecular Biology and Evolution. 15 (12): 1706–1718. doi:10.1093/oxfordjournals.molbev.a025897. PMID 9866205.
Delarbre C, Gallut C, Barriel V, Janvier P, Gachelin G (February 2002). "Complete mitochondrial DNA of the hagfish, Eptatretus burgeri: The comparative analysis of mitochondrial DNA sequences strongly supports the cyclostome monophyly". Molecular Phylogenetics and Evolution. 22 (2): 184–92. Bibcode:2002MolPE..22..184D. doi:10.1006/mpev.2001.1045. PMID 11820840.
Oisi Y, Ota KG, Kuraku S, Fujimoto S, Kuratani S (January 2013). "Craniofacial development of hagfishes and the evolution of vertebrates". Nature. 493 (7431): 175–80. Bibcode:2013Natur.493..175O. doi:10.1038/nature11794. hdl:20.500.14094/D1005717. PMID 23254938. S2CID 4403344.
Janvier, P. (November 2010). "MicroRNAs revive old views about jawless vertebrate divergence and evolution". Proceedings of the National Academy of Sciences of the United States of America. 107 (45): 19137–19138. Bibcode:2010PNAS..10719137J. doi:10.1073/pnas.1014583107. PMC 2984170. PMID 21041649. Although I was among the early supporters of vertebrate paraphyly, I am impressed by the evidence provided by Heimberg et al. and prepared to admit that cyclostomes are, in fact, monophyletic. The consequence is that they may tell us little, if anything, about the dawn of vertebrate evolution, except that the intuitions of 19th century zoologists were correct in assuming that these odd vertebrates (notably, hagfishes) are strongly degenerate and have lost many characters over time.
Stock, D.W.; Whitt, G.S. (August 1992). "Evidence from 18S ribosomal RNA sequences that lampreys and hagfishes form a natural group". Science. 257 (5071): 787–789. Bibcode:1992Sci...257..787S. doi:10.1126/science.1496398. PMID 1496398.
Stock, D.W.; Whitt, G.S. (August 1992). "Evidence from 18S ribosomal RNA sequences that lampreys and hagfishes form a natural group". Science. 257 (5071): 787–9. Bibcode:1992Sci...257..787S. doi:10.1126/science.1496398. PMID 1496398.
Ota KG, Fujimoto S, Oisi Y, Kuratani S (June 2011). "Identification of vertebra-like elements and their possible differentiation from sclerotomes in the hagfish". Nature Communications. 2 (6): 373. Bibcode:2011NatCo...2..373O. doi:10.1038/ncomms1355. PMC 3157150. PMID 21712821.
Sweet, W. C.; Donoghue, P. C. J. (2001). "Conodonts: past, present and future" (PDF). Journal of Paleontology. 75 (6): 1174–1184. Bibcode:2001JPal...75.1174S. doi:10.1666/0022-3360(2001)075<1174:CPPF>2.0.CO;2. ISSN 0022-3360. S2CID 53395896. Archived (PDF) from the original on 2022-10-30.
Baker CV (December 2008). "The evolution and elaboration of vertebrate neural crest cells". Current Opinion in Genetics & Development. 18 (6): 536–543. doi:10.1016/j.gde.2008.11.006. PMID 19121930.
Hirano, Masayuki; Das, Sabyasachi; Guo, Peng; Cooper, Max D. (2011-01-01). "Chapter 4 – The Evolution of Adaptive Immunity in Vertebrates". In Alt, Frederick W. (ed.). Advances in Immunology. Vol. 109. Academic Press. pp. 125–157. doi:10.1016/b978-0-12-387664-5.00004-2. ISBN 9780123876645. PMID 21569914. Retrieved 2019-12-03.
Wu, Fenfang; Chen, Liyong; Ren, Yong; Yang, Xiaojing; Yu, Tongzhou; Feng, Bo; Chen, Shangwu; Xu, Anlong (October 2016). "An inhibitory receptor of VLRB in the agnathan lamprey". Scientific Reports. 6 (1): 33760. Bibcode:2016NatSR...633760W. doi:10.1038/srep33760. ISSN 2045-2322. PMC 5071834. PMID 27762335.
Marlétaz, Ferdinand; Timoshevskaya, Nataliya; Timoshevskiy, Vladimir A.; Parey, Elise; Simakov, Oleg; Gavriouchkina, Daria; Suzuki, Masakazu; Kubokawa, Kaoru; Brenner, Sydney; Smith, Jeramiah J.; Rokhsar, Daniel S. (2024). "The hagfish genome and the evolution of vertebrates". Nature. 627 (8005): 811–820. Bibcode:2024Natur.627..811M. doi:10.1038/s41586-024-07070-3. ISSN 1476-4687. PMC 10972751. PMID 38262590.
Shu, Degan (April 2003). "A paleontological perspective of vertebrate origin". Chinese Science Bulletin. 48 (8): 725–735. Bibcode:2003ChSBu..48..725S. doi:10.1007/BF03187041. S2CID 85163902.
van der Laan, Richard (2016). "Family-group names of fossil fishes". European Journal of Taxonomy (466). doi:10.5852/ejt.2018.466.
Sweet, Walter C.; Cooper, Barry J. (December 2008). "C.H. Pander's introduction to conodonts, 1856". Episodes. 31 (4): 429–432. doi:10.18814/epiiugs/2008/v31i4/009. Retrieved 3 January 2019.
Gabbott, S.E.; R. J. Aldridge; J. N. Theron (1995). "A giant conodont with preserved muscle tissue from the Upper Ordovician of South Africa". Nature. 374 (6525): 800–803. Bibcode:1995Natur.374..800G. doi:10.1038/374800a0. S2CID 4342260.
Quinton, Page C. (2016). "Effects of extraction protocols on the oxygen isotope composition of conodont elements". Chemical Geology. 431: 36–43. Bibcode:2016ChGeo.431...36Q. doi:10.1016/j.chemgeo.2016.03.023.
Bergström, S. M.; Carnes, J. B.; Ethington, R. L.; Votaw, R. B.; Wigley, P. B. (1974). "Appalachignathus, a New Multielement Conodont Genus from the Middle Ordovician of North America". Journal of Paleontology. 48 (2): 227–235. Bibcode:2001JPal...75.1174S. doi:10.1666/0022-3360(2001)075<1174:CPPF>2.0.CO;2. JSTOR 1303249. S2CID 53395896.
Ginot, Samuel; Goudemand, Nicolas (December 2020). "Global climate changes account for the main trends of conodont diversity but not for their final demise" (PDF). Global and Planetary Change. 195: 103325. Bibcode:2020GPC...19503325G. doi:10.1016/j.gloplacha.2020.103325. S2CID 225005180.
Du, Yixing; Onoue, Tetsuji; Tomimatsu, Yuki; Wu, Qiangwang; Rigo, Manuel (2023). "Lower Jurassic conodonts from the Inuyama area of Japan: implications for conodont extinction". Frontiers in Ecology and Evolution. 11. doi:10.3389/fevo.2023.1135789. hdl:11577/3479836. ISSN 2296-701X.
Turner S, Tarling DH (1982). "Thelodont and other agnathan distributions as tests of Lower Paleozoic continental reconstructions". Palaeogeography, Palaeoclimatology, Palaeoecology. 39 (3–4): 295–311. Bibcode:1982PPP....39..295T. doi:10.1016/0031-0182(82)90027-X.
Donoghue PC, Forey PL, Aldridge RJ (May 2000). "Conodont affinity and chordate phylogeny". Biological Reviews of the Cambridge Philosophical Society. 75 (2): 191–251. doi:10.1111/j.1469-185X.1999.tb00045.x. PMID 10881388. S2CID 22803015.
Ferrón HG, Botella H (2017). "Squamation and ecology of thelodonts". PLOS ONE. 12 (2): e0172781. Bibcode:2017PLoSO..1272781F. doi:10.1371/journal.pone.0172781. PMC 5328365. PMID 28241029.
Delsuc F, Philippe H, Tsagkogeorga G, Simion P, Tilak MK, Turon X, López-Legentil S, Piette J, Lemaire P, Douzery EJ (April 2018). "A phylogenomic framework and timescale for comparative studies of tunicates". BMC Biology. 16 (1): 39. doi:10.1186/s12915-018-0499-2. PMC 5899321. PMID 29653534.
Miyashita, Tetsuto; Coates, Michael I.; Farrar, Robert; Larson, Peter; Manning, Phillip L.; Wogelius, Roy A.; et al. (2019). "Hagfish from the Cretaceous Tethys Sea and a reconciliation of the morphological–molecular conflict in early vertebrate phylogeny". Proceedings of the National Academy of Sciences of the United States of America. 116 (6): 2146–2151. Bibcode:2019PNAS..116.2146M. doi:10.1073/pnas.1814794116. PMC 6369785. PMID 30670644.

hal.science

univ-lyon1.hal.science

Ginot, Samuel; Goudemand, Nicolas (December 2020). "Global climate changes account for the main trends of conodont diversity but not for their final demise" (PDF). Global and Planetary Change. 195: 103325. Bibcode:2020GPC...19503325G. doi:10.1016/j.gloplacha.2020.103325. S2CID 225005180.

handle.net

hdl.handle.net

Oisi Y, Ota KG, Kuraku S, Fujimoto S, Kuratani S (January 2013). "Craniofacial development of hagfishes and the evolution of vertebrates". Nature. 493 (7431): 175–80. Bibcode:2013Natur.493..175O. doi:10.1038/nature11794. hdl:20.500.14094/D1005717. PMID 23254938. S2CID 4403344.
Du, Yixing; Onoue, Tetsuji; Tomimatsu, Yuki; Wu, Qiangwang; Rigo, Manuel (2023). "Lower Jurassic conodonts from the Inuyama area of Japan: implications for conodont extinction". Frontiers in Ecology and Evolution. 11. doi:10.3389/fevo.2023.1135789. hdl:11577/3479836. ISSN 2296-701X.

harvard.edu

ui.adsabs.harvard.edu

Yang, Chuan; Li, Xian-Hua; Zhu, Maoyan; Condon, Daniel J.; Chen, Junyuan (2018). "Geochronological constraint on the Cambrian Chengjiang biota, South China" (PDF). Journal of the Geological Society. 175 (4): 659–666. Bibcode:2018JGSoc.175..659Y. doi:10.1144/jgs2017-103. ISSN 0016-7649. S2CID 135091168.
Märss, T.; Miller, C.G. (2004). "Thelodonts and distribution of associated conodonts from the Llandovery-lowermost Lochkovian of the Welsh Borderland". Palaeontology. 47 (5): 1211–1265. Bibcode:2004Palgy..47.1211M. doi:10.1111/j.0031-0239.2004.00409.x. [W. Kiessling/M. Krause/E. Ito]
Ruggiero, Michael; Gordon, Dennis P.; Orrell, Thomas M.; Bailly, Nicolas (April 2015). "A Higher Level Classification of All Living Organisms". PLOS One. 10 (4): e0119248. Bibcode:2015PLoSO..1019248R. doi:10.1371/journal.pone.0119248. PMC 4418965. PMID 25923521.
Delarbre C, Gallut C, Barriel V, Janvier P, Gachelin G (February 2002). "Complete mitochondrial DNA of the hagfish, Eptatretus burgeri: The comparative analysis of mitochondrial DNA sequences strongly supports the cyclostome monophyly". Molecular Phylogenetics and Evolution. 22 (2): 184–92. Bibcode:2002MolPE..22..184D. doi:10.1006/mpev.2001.1045. PMID 11820840.
Oisi Y, Ota KG, Kuraku S, Fujimoto S, Kuratani S (January 2013). "Craniofacial development of hagfishes and the evolution of vertebrates". Nature. 493 (7431): 175–80. Bibcode:2013Natur.493..175O. doi:10.1038/nature11794. hdl:20.500.14094/D1005717. PMID 23254938. S2CID 4403344.
Janvier, P. (November 2010). "MicroRNAs revive old views about jawless vertebrate divergence and evolution". Proceedings of the National Academy of Sciences of the United States of America. 107 (45): 19137–19138. Bibcode:2010PNAS..10719137J. doi:10.1073/pnas.1014583107. PMC 2984170. PMID 21041649. Although I was among the early supporters of vertebrate paraphyly, I am impressed by the evidence provided by Heimberg et al. and prepared to admit that cyclostomes are, in fact, monophyletic. The consequence is that they may tell us little, if anything, about the dawn of vertebrate evolution, except that the intuitions of 19th century zoologists were correct in assuming that these odd vertebrates (notably, hagfishes) are strongly degenerate and have lost many characters over time.
Stock, D.W.; Whitt, G.S. (August 1992). "Evidence from 18S ribosomal RNA sequences that lampreys and hagfishes form a natural group". Science. 257 (5071): 787–789. Bibcode:1992Sci...257..787S. doi:10.1126/science.1496398. PMID 1496398.
Stock, D.W.; Whitt, G.S. (August 1992). "Evidence from 18S ribosomal RNA sequences that lampreys and hagfishes form a natural group". Science. 257 (5071): 787–9. Bibcode:1992Sci...257..787S. doi:10.1126/science.1496398. PMID 1496398.
Ota KG, Fujimoto S, Oisi Y, Kuratani S (June 2011). "Identification of vertebra-like elements and their possible differentiation from sclerotomes in the hagfish". Nature Communications. 2 (6): 373. Bibcode:2011NatCo...2..373O. doi:10.1038/ncomms1355. PMC 3157150. PMID 21712821.
Sweet, W. C.; Donoghue, P. C. J. (2001). "Conodonts: past, present and future" (PDF). Journal of Paleontology. 75 (6): 1174–1184. Bibcode:2001JPal...75.1174S. doi:10.1666/0022-3360(2001)075<1174:CPPF>2.0.CO;2. ISSN 0022-3360. S2CID 53395896. Archived (PDF) from the original on 2022-10-30.
Wu, Fenfang; Chen, Liyong; Ren, Yong; Yang, Xiaojing; Yu, Tongzhou; Feng, Bo; Chen, Shangwu; Xu, Anlong (October 2016). "An inhibitory receptor of VLRB in the agnathan lamprey". Scientific Reports. 6 (1): 33760. Bibcode:2016NatSR...633760W. doi:10.1038/srep33760. ISSN 2045-2322. PMC 5071834. PMID 27762335.
Marlétaz, Ferdinand; Timoshevskaya, Nataliya; Timoshevskiy, Vladimir A.; Parey, Elise; Simakov, Oleg; Gavriouchkina, Daria; Suzuki, Masakazu; Kubokawa, Kaoru; Brenner, Sydney; Smith, Jeramiah J.; Rokhsar, Daniel S. (2024). "The hagfish genome and the evolution of vertebrates". Nature. 627 (8005): 811–820. Bibcode:2024Natur.627..811M. doi:10.1038/s41586-024-07070-3. ISSN 1476-4687. PMC 10972751. PMID 38262590.
Shu, Degan (April 2003). "A paleontological perspective of vertebrate origin". Chinese Science Bulletin. 48 (8): 725–735. Bibcode:2003ChSBu..48..725S. doi:10.1007/BF03187041. S2CID 85163902.
Gabbott, S.E.; R. J. Aldridge; J. N. Theron (1995). "A giant conodont with preserved muscle tissue from the Upper Ordovician of South Africa". Nature. 374 (6525): 800–803. Bibcode:1995Natur.374..800G. doi:10.1038/374800a0. S2CID 4342260.
Quinton, Page C. (2016). "Effects of extraction protocols on the oxygen isotope composition of conodont elements". Chemical Geology. 431: 36–43. Bibcode:2016ChGeo.431...36Q. doi:10.1016/j.chemgeo.2016.03.023.
Bergström, S. M.; Carnes, J. B.; Ethington, R. L.; Votaw, R. B.; Wigley, P. B. (1974). "Appalachignathus, a New Multielement Conodont Genus from the Middle Ordovician of North America". Journal of Paleontology. 48 (2): 227–235. Bibcode:2001JPal...75.1174S. doi:10.1666/0022-3360(2001)075<1174:CPPF>2.0.CO;2. JSTOR 1303249. S2CID 53395896.
Ginot, Samuel; Goudemand, Nicolas (December 2020). "Global climate changes account for the main trends of conodont diversity but not for their final demise" (PDF). Global and Planetary Change. 195: 103325. Bibcode:2020GPC...19503325G. doi:10.1016/j.gloplacha.2020.103325. S2CID 225005180.
Turner S, Tarling DH (1982). "Thelodont and other agnathan distributions as tests of Lower Paleozoic continental reconstructions". Palaeogeography, Palaeoclimatology, Palaeoecology. 39 (3–4): 295–311. Bibcode:1982PPP....39..295T. doi:10.1016/0031-0182(82)90027-X.
Ferrón HG, Botella H (2017). "Squamation and ecology of thelodonts". PLOS ONE. 12 (2): e0172781. Bibcode:2017PLoSO..1272781F. doi:10.1371/journal.pone.0172781. PMC 5328365. PMID 28241029.
Miyashita, Tetsuto; Coates, Michael I.; Farrar, Robert; Larson, Peter; Manning, Phillip L.; Wogelius, Roy A.; et al. (2019). "Hagfish from the Cretaceous Tethys Sea and a reconciliation of the morphological–molecular conflict in early vertebrate phylogeny". Proceedings of the National Academy of Sciences of the United States of America. 116 (6): 2146–2151. Bibcode:2019PNAS..116.2146M. doi:10.1073/pnas.1814794116. PMC 6369785. PMID 30670644.

helsinki.fi

Haaramo, Mikko (2007). "Chordata – lancets, tunicates, and vertebrates". Mikko's Phylogeny Archive. Retrieved 30 December 2016.

jstor.org

Bergström, S. M.; Carnes, J. B.; Ethington, R. L.; Votaw, R. B.; Wigley, P. B. (1974). "Appalachignathus, a New Multielement Conodont Genus from the Middle Ordovician of North America". Journal of Paleontology. 48 (2): 227–235. Bibcode:2001JPal...75.1174S. doi:10.1666/0022-3360(2001)075<1174:CPPF>2.0.CO;2. JSTOR 1303249. S2CID 53395896.

nerc.ac.uk

nora.nerc.ac.uk

Yang, Chuan; Li, Xian-Hua; Zhu, Maoyan; Condon, Daniel J.; Chen, Junyuan (2018). "Geochronological constraint on the Cambrian Chengjiang biota, South China" (PDF). Journal of the Geological Society. 175 (4): 659–666. Bibcode:2018JGSoc.175..659Y. doi:10.1144/jgs2017-103. ISSN 0016-7649. S2CID 135091168.

nih.gov

pubmed.ncbi.nlm.nih.gov

Ruggiero, Michael; Gordon, Dennis P.; Orrell, Thomas M.; Bailly, Nicolas (April 2015). "A Higher Level Classification of All Living Organisms". PLOS One. 10 (4): e0119248. Bibcode:2015PLoSO..1019248R. doi:10.1371/journal.pone.0119248. PMC 4418965. PMID 25923521.
Heimberg, Alysha M.; Cowper-Sal·lari, Richard; Sémon, Marie; Donoghue, Philip C.J.; Peterson, Kevin J. (2010-11-09). "microRNAs reveal the interrelationships of hagfish, lampreys, and gnathostomes and the nature of the ancestral vertebrate". Proceedings of the National Academy of Sciences. 107 (45): 19379–19383. doi:10.1073/pnas.1010350107. PMC 2984222. PMID 20959416.
Mallatt, J.; Sullivan, J. (December 1998). "28S and 18S rDNA sequences support the monophyly of lampreys and hagfishes". Molecular Biology and Evolution. 15 (12): 1706–1718. doi:10.1093/oxfordjournals.molbev.a025897. PMID 9866205.
Delarbre C, Gallut C, Barriel V, Janvier P, Gachelin G (February 2002). "Complete mitochondrial DNA of the hagfish, Eptatretus burgeri: The comparative analysis of mitochondrial DNA sequences strongly supports the cyclostome monophyly". Molecular Phylogenetics and Evolution. 22 (2): 184–92. Bibcode:2002MolPE..22..184D. doi:10.1006/mpev.2001.1045. PMID 11820840.
Oisi Y, Ota KG, Kuraku S, Fujimoto S, Kuratani S (January 2013). "Craniofacial development of hagfishes and the evolution of vertebrates". Nature. 493 (7431): 175–80. Bibcode:2013Natur.493..175O. doi:10.1038/nature11794. hdl:20.500.14094/D1005717. PMID 23254938. S2CID 4403344.
Janvier, P. (November 2010). "MicroRNAs revive old views about jawless vertebrate divergence and evolution". Proceedings of the National Academy of Sciences of the United States of America. 107 (45): 19137–19138. Bibcode:2010PNAS..10719137J. doi:10.1073/pnas.1014583107. PMC 2984170. PMID 21041649. Although I was among the early supporters of vertebrate paraphyly, I am impressed by the evidence provided by Heimberg et al. and prepared to admit that cyclostomes are, in fact, monophyletic. The consequence is that they may tell us little, if anything, about the dawn of vertebrate evolution, except that the intuitions of 19th century zoologists were correct in assuming that these odd vertebrates (notably, hagfishes) are strongly degenerate and have lost many characters over time.
Stock, D.W.; Whitt, G.S. (August 1992). "Evidence from 18S ribosomal RNA sequences that lampreys and hagfishes form a natural group". Science. 257 (5071): 787–789. Bibcode:1992Sci...257..787S. doi:10.1126/science.1496398. PMID 1496398.
Stock, D.W.; Whitt, G.S. (August 1992). "Evidence from 18S ribosomal RNA sequences that lampreys and hagfishes form a natural group". Science. 257 (5071): 787–9. Bibcode:1992Sci...257..787S. doi:10.1126/science.1496398. PMID 1496398.
Ota KG, Fujimoto S, Oisi Y, Kuratani S (June 2011). "Identification of vertebra-like elements and their possible differentiation from sclerotomes in the hagfish". Nature Communications. 2 (6): 373. Bibcode:2011NatCo...2..373O. doi:10.1038/ncomms1355. PMC 3157150. PMID 21712821.
Baker CV (December 2008). "The evolution and elaboration of vertebrate neural crest cells". Current Opinion in Genetics & Development. 18 (6): 536–543. doi:10.1016/j.gde.2008.11.006. PMID 19121930.
Hirano, Masayuki; Das, Sabyasachi; Guo, Peng; Cooper, Max D. (2011-01-01). "Chapter 4 – The Evolution of Adaptive Immunity in Vertebrates". In Alt, Frederick W. (ed.). Advances in Immunology. Vol. 109. Academic Press. pp. 125–157. doi:10.1016/b978-0-12-387664-5.00004-2. ISBN 9780123876645. PMID 21569914. Retrieved 2019-12-03.
Wu, Fenfang; Chen, Liyong; Ren, Yong; Yang, Xiaojing; Yu, Tongzhou; Feng, Bo; Chen, Shangwu; Xu, Anlong (October 2016). "An inhibitory receptor of VLRB in the agnathan lamprey". Scientific Reports. 6 (1): 33760. Bibcode:2016NatSR...633760W. doi:10.1038/srep33760. ISSN 2045-2322. PMC 5071834. PMID 27762335.
Marlétaz, Ferdinand; Timoshevskaya, Nataliya; Timoshevskiy, Vladimir A.; Parey, Elise; Simakov, Oleg; Gavriouchkina, Daria; Suzuki, Masakazu; Kubokawa, Kaoru; Brenner, Sydney; Smith, Jeramiah J.; Rokhsar, Daniel S. (2024). "The hagfish genome and the evolution of vertebrates". Nature. 627 (8005): 811–820. Bibcode:2024Natur.627..811M. doi:10.1038/s41586-024-07070-3. ISSN 1476-4687. PMC 10972751. PMID 38262590.
Donoghue PC, Forey PL, Aldridge RJ (May 2000). "Conodont affinity and chordate phylogeny". Biological Reviews of the Cambridge Philosophical Society. 75 (2): 191–251. doi:10.1111/j.1469-185X.1999.tb00045.x. PMID 10881388. S2CID 22803015.
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Yang, Chuan; Li, Xian-Hua; Zhu, Maoyan; Condon, Daniel J.; Chen, Junyuan (2018). "Geochronological constraint on the Cambrian Chengjiang biota, South China" (PDF). Journal of the Geological Society. 175 (4): 659–666. Bibcode:2018JGSoc.175..659Y. doi:10.1144/jgs2017-103. ISSN 0016-7649. S2CID 135091168.
Sweet, W. C.; Donoghue, P. C. J. (2001). "Conodonts: past, present and future" (PDF). Journal of Paleontology. 75 (6): 1174–1184. Bibcode:2001JPal...75.1174S. doi:10.1666/0022-3360(2001)075<1174:CPPF>2.0.CO;2. ISSN 0022-3360. S2CID 53395896. Archived (PDF) from the original on 2022-10-30.
Wu, Fenfang; Chen, Liyong; Ren, Yong; Yang, Xiaojing; Yu, Tongzhou; Feng, Bo; Chen, Shangwu; Xu, Anlong (October 2016). "An inhibitory receptor of VLRB in the agnathan lamprey". Scientific Reports. 6 (1): 33760. Bibcode:2016NatSR...633760W. doi:10.1038/srep33760. ISSN 2045-2322. PMC 5071834. PMID 27762335.
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