Skip to main content
×
Home
    • Aa
    • Aa

A new Tolypelepidid (Agnatha, Heterostraci) from the Late Silurian of Poland

  • Marek Dec (a1)
Abstract
Abstract

Tolypelepis mielnikensis n. sp. from a core sample of the Late Silurian (Pridoli) succession in Mielnik, Poland shares tolypelepidid features such as a subdivision of the dorsal shield into epitega, and ornamentation of short dentine ridges grouped into scale-like units with a coarser, higher median ridge encircled by narrower and lower ridges. A constriction of the dorsal shield anterior to the orbit level with the orbital notches significantly deeper than in other tolypelepidids discriminates it from other Tolypelepis species.

Copyright
References
Hide All
Berg L.S., 1937, A classification of fish-like vertebrates: Bulletin of the Academy of Sciences of URSS: Biology Series, v. 4, p. 12771280.
Blieck A., Elliott D.K., and Gagnier P.Y., 1991, Some questions concerning the phylogenetic relationships of heterostracans, Ordovician to Devonian jawless vertebrates, in Chang, M.M., Liu, Y.H., and Zhang, G.R., eds., Early Vertebrates and Related Problems of Evolutionary Biology: Beijing, Science Press, p. 117.
Denison R.H., 1964, The Cyathaspididae: a family of Silurian and Devonian jawless vertebrates: Fieldiana Geology, v. 13, p. 30473.
Dineley D.L., and Loeffler E.J., 1976, Ostracoderm faunas of the Delorme and associated Siluro-Devonian formations, North West Territories, Canada: Special Papers in Palaeontology, v. 18, p. 1214.
Elliott D.K., and Blieck A., 2010, A new Ctenaspis (Agnatha, Heterostraci) from the Early Devonian of Nevada, with comments on paleobiology and biogeographic significance, in Elliott, D.K., Maisey, J.G., Yu, X., and Miao, D., eds., Morphology, Phylogeny, and Paleobiology of Fossil Fishes: Munchen, Verlag Dr. F. Pfeil, p. 2538.
Elliott D.K., and Swift S., 2010, A New species of Ariaspis (Agnatha, Heterostraci) from the Late Silurian of the Canadian Arctic: Journal of Vertebrate Paleontology, v. 30, p. 18741878.
Goodrich E.S., 1909, Vertebrata craniata. First fascicle: cyclostomes and fisches, in A Treatese on Zoology, London, v. 9.
Greeniaus J.W., and Wilson M.V.H., 2003, Fossil juvenile Cyathaspididae (Heterostraci) reveal rapid cyclomorial development of the dermal skeleton: Journal of Vertebrate Paleontology, v. 23, p. 483487.
Hoppe K.H., 1931, Die Coelolepiden und Acanthodier des Obersilurs der Indel Ösel: Palaeontographia, v. 76, p. 3594.
Janvier P., 1996. Early Vertebrates: Oxford, Oxford Science Publications, Clarendon Press, 393 pp.
Kiaer J., 1932, The Downtonian and Devonian vertebrates of Spitsbergen. IV: Suborder Cyathaspida: Skrifter Svalbard Ishavet, v. 52, p. 726.
Kozłowski W., and Sobień K., 2012, Mid-Ludfordian coeval carbon isotope, natural gamma ray and magnetic susceptibility excursions in the Mielnik IG-1 borehole (Eastern Poland)—Dustiness as a possible link between global climate and the Silurian carbon isotope record: Palaeogeography, Palaeoclimatology, Palaeoecology, v. 339–341, p. 7497.
Lankester E.R., 1868, A monograph of the fishes of the Old Red Sandsone o Britain. Part I. The Cephalaspidiae: Monograph of the Palaeontographical Society, London, p. 162.
Loeffler E.J., and Jones B., 1977, Additional Late Silurian Ostracoderms from the Leopold Formation of Somerset Island North West Territories, Canada: Palaeontology, v. 20, p. 661674.
Mark-Kurik E., 1969, Distribution of vertebrates in the Silurian of Etonia: Lethaia, v. 2, p. 145152.
Mark-Kurik E., and Noppel T., 1970, Additional notes on the distribution of vertebrates in the Silurian of Estonia, ENSV TA Toimetised. Keemia: Geoloogia, v. 19, p. 171173.
Märss T., 1977, Structure of Tolypelepis from the Baltic Upper Silurian: Eesti NSV Teaduste Akadeemia Toimetised, Keemia: Geoloogia, v. 26, p. 5769.
Märss T., 1997, Vertebrates of the Přidoli and Silurian-Devonian boundary beds in Europe: Modern Geology, v. 21, p. 1742.
Nestor H., 1990, Locality 7: 4 Ohesaare cliff; pp. 175–178 in Kaljo, D., and Nestor, H., eds., Field meeting, Estonia 1990, an Excursion Guidebook: Tallinn, Institute of Geology, Estonian Academy of Sciences, p. 175–178.
Pander C.H., 1856. Monographie der fossilen Fische des silurischen Systems der russisch-baltischen Gouvernements: St. Petersburg, 91 p.
Rohon J.V., 1893, Die obersilurischen Fische von Oesel. II Theil: Selachii, Dipnoi, Ganoidei, Pteraspidae und Cephalaspidae, Mémoires de l'Académie Impériale des Sciences de St.-Petersbourg, v. 41, p. 1124.
Scotese C.R., 2001, Atlas of Earth History, vol 1, Paleogeography, Paleomap Project, Arlington, Texas, 52 pp. Available at www.scotese.com.
Schmidt 1893, Ueber neue silurische Fischfunde auf Oesel: Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, v. 1, p. 99101.
Soehn K.L., and Wilson M.H.V., 1990, A complete, articulated heterostracan from Wenlockian (Silurian) beds of the Delorme Group, Mackenzie Mountains, Northwest Territories, Canada: Journal of Vertebrate Paleontology, v. 10, p. 405419.
Stensiö E.A., 1958, Les cyclostomes fossiles ou ostracodermes, in Grassé, P., Traite de Zoologie: Paris, Masson, p. 173425.
Urbanek A., 1997, Late Ludfordian and early Přidolí monograptids from the Polish Lowland: Palaeontologica Polonica, v. 56, p. 87232.
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

Journal of Paleontology
  • ISSN: 0022-3360
  • EISSN: 1937-2337
  • URL: /core/journals/journal-of-paleontology
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Altmetric attention score

Full text views

Total number of HTML views: 1
Total number of PDF views: 11 *
Loading metrics...

Abstract views

Total abstract views: 141 *
Loading metrics...

* Views captured on Cambridge Core between September 2016 - 24th October 2017. This data will be updated every 24 hours.