Class
Cephalaspidomorphi Kiaer, 1924
Selection of related publications
Märss, T., Wilson, M. V., Viljus, M. 2022. Endolymphatic structures in headshields of the osteostracan genus Tremataspis (Agnatha) from the Silurian of Estonia. Estonian Journal of Earth Sciences 71, 3, 135-156. DOI:10.3176/earth.2022.10
Bremer, O., Qu, Q., Sanchez, S., Märss, T., Fernandez, V., Blom, H. 2021. The emergence of a complex pore‐canal system in the dermal skeleton of Tremataspis (Osteostraci). Journal of Morphology 282, 8, 1141-1157. DOI:10.1002/jmor.21359
Tinn, O., Märss, T. 2018. The earliest osteostracan Kalanaspis delectabilis gen. et sp. nov. from the mid-Aeronian (mid-Llandovery, lower Silurian) of Estonia. Journal of Vertebrate Paleontology 38, 1, e1425212. DOI:10.1080/02724634.2017.1425212
Fadel, A., Žigaite, Ž., Blom, H., Perez-Huerta, A., Jeffries, T., Märss, T., Ahlberg, P. E. 2015. Palaeoenvironmental signatures revealed from rare earth element (REE) compositions of vertebrate microremains of the Vesiku Bone Bed (Homerian, Wenlock), Saaremaa Island, Estonia. Estonian Journal of Earth Sciences 64, 1, 36-41. DOI:10.3176/earth.2015.07
Märss, T., Afanassieva, O., Blom, H. 2014. Biodiversity of the Silurian osteostracans of the East Baltic. Earth and Environmental Science Transactions of the Royal Society of Edinburgh 105, 2, 73-148. DOI:10.1017/S1755691014000218
Afanassieva, O. B., Märss, T. 2014. New Data on the Exoskeleton of the Osteostracan Genus Aestiaspis (Agnatha) from the Silurian of Saaremaa Island (Estonia) and the Severnaya Zemlya Archipelago (Russia). Paleontologicheski Zhurnal 48, 1, 74-78. DOI:10.1134/S003103011401002X
Märss, T. 2006. Exoskeletal ultrasculpture of early vertebrates. Journal of Vertebrate Paleontology 26, 2, 235-252. DOI:10.1671/0272-4634(2006)26[235:EUOEV]2.0.CO;2
Miller, C. G., Märss, T., Blom, H. 2004. New anaspid material from the Late Silurian of Britain and Estonia. Acta Universitatis Latviensis 679, 46-56. Latvijas Universitāte.
Blom, H., Märss, T., Miller, C. G. 2003. A new birkeniid anaspid from the Upper Silurian of Skåne, south Sweden. GFF 125, 2, 57-61. DOI:10.1080/11035890301252057
Blom, H., Märss, T., Miller, C. G. 2002. Silurian and earliest Devonian birkeniid anaspids from the Northern Hemisphere. Transactions of the Royal Society of Edinburgh Earth Sciences 92, 3, 263-323. DOI:10.1017/S0263593300000250
Märss, T. 2002. Silurian and Lower Dewonian anaspids (Agnatha) from Severnaya Zemlya (Russia). Geodiversitas 24, 1, 123-137.
Otto, M., Laurin, M. 1999. Osteostracan tesserae from the Baltic Middle Devonian: morphology and microanatomy. Neues Jahrbuch für Mineralogie, Geologie und Paläontologie. Monatshefte: Abt. B. Geologie, Paläontologie 1999, 8, 464-476. DOI:10.1127/njgpm/1999/1999/464
Mark-Kurik, E., Janvier, P. 1997. A new tremataspidid (Vertebrata, Osteostraci, Thyestiida) from the Devonian of northern Urals, with remarks on tannuaspidids. Neues Jahrbuch für Geologie und Paläontologie. Abhandlungen 206, 3, 405-421. DOI:10.1127/njgpa/206/1997/405
Afanassieva, O. B., Märss, T. 1997. Exoskeleton Structure and the Distribution of Aestiaspis viitaensis (Agnatha) from the Silurian of Estonia. Paleontological Journal 31, 6, 641-647.
Mark-Kurik, E., Janvier, P. 1995. Early Devonian osteostracans from Severnaya Zemlya, Russia. Journal of Vertebrate Paleontology 15, 3, 449-462. DOI:10.1080/02724634.1995.10011241
Janvier, P., Lelievre, H. 1994. A new tremataspid osteostracan, Aestiaspis viitaensis n. g., n. sp., from the Silurian of Saaremaa, Estonia. Proceedings of the Estonian Academy of Sciences. Geology 43, 3, 122-128. DOI:10.3176/geol.1994.3.02
Afanassieva, O. B. 1990. Novyj Brenneviaspis (Agnatha) iz nižnedevonskih otloženij Podolii. Paleontologicheski Zhurnal 4, 128-131.
Märss, T. 1986. Silurian Vertebrates of Estonia and West Latvia. Fossilia Baltica 1. Fossilia Baltica 1, 1-104. Valgus.
Belles-Isles, M., Janvier, P. 1984. Nouveaux Ostéostracés du Dévonien Inférieur de Podolie (RSS d 'Ukraine). Acta Palaeontologica Polonica 29, 3-4, 195-208.
Märss, T. 1977. Structure of Tolypelepis from the Baltic Upper Silurian. Eesti NSV Teaduste Akadeemia Toimetised. Keemia, Geoloogia / Известия Академии наук Эстонской ССР. Химия. Геология 26, 1, 57-69. DOI:10.3176/chem.geol.1977.1.09
Ritchie, A. 1967. Ateleaspis tessellata Traquair, a non-cornuate cephalaspid from the Upper Silurian of Scotland. Zoological Journal of the Linnean Society 47, 311, 69–81. DOI:10.1111/j.1096-3642.1967.tb01396.x
Rohon, J. V. 1892. Die obersilurischen Fische von Oesel. I Theil. Thyestidae und Tremataspidae. Mémoires de l´Académie Impériale des Sciences de St.-Petersbourg 38, 13, 1-88.
Eichwald, E. 1858. Beitrag zur geographischen Verbreitung der fossilen Thiere Russlands. Alte Periode (Fortsetzung. S. Bulletin 1851. N 1. pag. 192). Klasse der Krustazeen. Klasse der Fische. Klasse der Reptilen. Bulletin of the Moscow Society of Naturalists. Geological series 30, IV, 305-354.
List of species
2. Afanassiaspis porata Otto et Laurin, 1999 | Pärnu Stage
3. Ateleaspis robustus (Kiaer, 1911) | Ludlow
5. Balticaspis latvica Lyarskaya, 1981 | Eifelian
6. Birkenia robusta Blom, Märss et Miller, 2002 | Rootsiküla Stage
7. Dartmuthia gemmifera Patten, 1931 | Paadla Stage
9. Eldaaspis miklii Märss, Afanassieva et Blom, 2014 | Rootsiküla Stage
10. Hirella denisoni Heintz, 1969 | Ludlow
11. Hoburgilepis papillata Blom, Märss et Miller, 2002 | Ludfordian
12. Kalanaspis delectabilis Tinn et Märss, 2018 | Raikküla Stage
14. Meelaidaspis gennadii Märss, Afanassieva et Blom, 2014 | Rootsiküla Stage
16. Ohesaareaspis ponticulata Märss, Afanassieva et Blom, 2014 | Ohesaare Stage
18. Procephalaspis oeselensis (Robertson, 1939) | Paadla Stage
20. Ramsaasalepis porosa Blom, Märss et Miller, 2003 | Přidoli
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Classification
| Organism group | Biota |
| Kingdom | Animalia |
| Phylum | Chordata |
| Subphylum | Vertebrata |
| Superclass | Agnatha |
| Class | incertae sedis |
| Cephalaspidomorphi | |
| Subclass | Anaspida |
| Galeaspida | |
| Osteostraci | |
| Petromyzoniformes | |
| Class | Pteraspidomorphi |