Hostname: page-component-8448b6f56d-jr42d Total loading time: 0 Render date: 2024-04-19T22:56:54.541Z Has data issue: false hasContentIssue false
  • English
  • Français

New cranial material of Discosauriscus pulcherrimus (Seymouriamorpha, Discosauriscidae) from the Lower Permian of the Boskovice Basin (Czech Republic)

Published online by Cambridge University Press:  20 November 2018

Jozef KLEMBARA  and
Marika MIKUDÍKOVÁ
Jozef KLEMBARA*
Affiliation:
Laboratory of Evolutionary Biology, Department of Ecology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, 842 15 Bratislava, Slovakia. Email: jozef.klembara@uniba.sk
Marika MIKUDÍKOVÁ
Affiliation:
Department of Geology and Palaeontology, Faculty of Natural Sciences, Comenius University in Bratislava, Ilkovičova 6, 842 15 Bratislava, Slovakia. State Geological Institute of Dionýz Štúr, Mlynská dolina 1, 817 04 Bratislava, Slovakia.
*
*Corresponding author
Get access Rights & Permissions [Opens in a new window]

Abstract

We describe four newly discovered and three-dimensionally preserved specimens of the discosauriscid seymouriamorph Discosauriscus pulcherrimus from the Lower Permian lacustrine sediments of the Boskovice Basin (Czech Republic). Their excellent preservation revealed new cranial features that allowed us to present a new skull reconstruction of middle-sized specimens of this tetrapod. The new features include: (1) the sculpturing of the anterior wedge-like process of the parasphenoid consisting of irregular ridges, grooves, low elevations and pits; and (2) the presence of a pair of semicircular crests on the posterodorsal surface of the parasphenoidal plate. We discuss the intraspecific variability of several characters, such as the type of dermal cranial ornamentation, and the morphology of the sensory grooves, nasolacrimal canal, dentition on the pterygoids and parasphenoid. The lengths of the skulls of four new specimens range from about 18 to 31mm and represent larval ontogenetic stages.

Keywords

individual variabilitymorphologyontogenyskull reconstruction
Type
Articles
Information
Earth and Environmental Science Transactions of The Royal Society of Edinburgh , Volume 109 , Issue 1-2: Fossils, Function and Phylogeny: Papers on Early Vertebrate Evolution in Honour of Professor Jennifer A. Clack , March 2018 , pp. 225 - 236
Copyright
Copyright © The Royal Society of Edinburgh 2018 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

7. References

Boy, J. A. 2007. Als die Saurier noch klein waren: tetrapoden im Permokarbon. In Schindler, T. & Heidtke, U. H. J. (eds) Kohlesümpfe, seen und halbwüsten, 258–286. Bad Dürkheim: Pollichia.Google Scholar
Fritsch, A. 1880. Fauna der Gaskohle und der Kalksteine der Permformation Böhmens. I/2. Prague: F. Řivnáč, 93–126.Google Scholar
Heyler, D. 1969. Les vertébrés de l'Autunien de France. Cahiers de Paléontologie 166, 1–259.Google Scholar
Klembara, J. 1995. The external gills and ornamentation of the skull roof bones of the Lower Permian tetrapod Discosauriscus austriacus (Makowsky 1876) with remarks to its ontogeny. Paläontologische Zeitschrift 69, 265–281.Google Scholar
Klembara, J. 1997. The cranial anatomy of Discosauriscus kuhn, a seymouriamorph tetrapod from the Lower Permian of the Boskovice Furrow (Czech Republic). Philosophical Transactions of the Royal Society of London, Series B 352, 257–302.Google Scholar
Klembara, J. 2009. New cranial and dental features of Discosauriscus austriacus (Seymouriamorpha, Discosauriscidae) and the ontogenetic conditions of Discosauriscus. Special Papers in Palaeontology 81, 61–69.Google Scholar
Klembara, J., Berman, D. S., Henrici, A. C., Čerňanský, A. & Werneburg, R. 2006. Comparison of cranial anatomy and proportions of similarly sized Seymouria sanjuanensis and Discosauriscus austriacus. Annals of Carnegie Museum 75, 37–49.Google Scholar
Klembara, J., Berman, D. S., Henrici, A. C., Čerňanský, A., Werneburg, R. & Martens, T. 2007. First description of skull of Lower Permian Seymouria sanjuanensis (Seymouriamorpha: Seymouriidae) at an early juvenile growth stage. Annals of Carnegie Museum 76, 53–72.Google Scholar
Klembara, J. & Bartík, I. 2000. The postcranial skeleton of Discosauriscus kuhn, a seymouriamorph tetrapod from the Lower Permian of the Boskovice Furrow (Czech Republic). Transactions of the Royal Society of Edinburgh: Earth Sciences 90, 287–316.Google Scholar
Klembara, J. & Meszároš, Š. 1992. New finds of Discosauriscus austriacus (Makowsky 1876) from the Lower Permian of the Boskovice Furrow (Czecho-Slovakia). Geologica Carpathica 43, 305–312.Google Scholar
Klembara, J. & Ruta, M. 2005a. The seymouriamorph tetrapod Ariekanerpeton sigalovi from the Lower Permian of Tadzhikistan. Part I: cranial anatomy and ontogeny. Transactions of the Royal Society of Edinburgh: Earth Sciences 96, 43–70.Google Scholar
Klembara, J. & Ruta, M. 2005b. The seymouriamorph tetrapod Ariekanerpeton sigalovi from the Lower Permian of Tadzhikistan. Part II: postcranial anatomy and relationships. Transactions of the Royal Society of Edinburgh: Earth Sciences 96, 71–93.Google Scholar
Kuhn, O. 1933. Labyrinthodontia. In Quenstedt, W. (ed.) Fossilium catalogus, I. Animalia, 61, 1–114. Berlin: W. Junk.Google Scholar
Romer, A. S. 1947. Review of the Labyrinthodontia. Bulletin of the Museum of Comparative Zoology, Harvard 99, 1–368.Google Scholar
Špinar, Z. V. 1952. Revize nekterých moravských diskosauriscidů (Labyrinthodontia). Rozpravy Ústředního Ústavu Geologického, Svazek 15, 1–115.Google Scholar
Steyer, J. S., Sanchez, S., Debriette, P. J., Valli, M. F., Escuille, F., Pohl, B., Dechambre, R. P., Vacant, R., Spence, C. & de Ploëg, G. 2012. A new vertebrate Lagerstätte from the Lower Permian of France (Franchesse, Massif Central): palaeoenvironmental implications for the Bourbon-l'Archambault basin. Bulletin de la Société géologique de France 183, 509–515.Google Scholar
Watson, D. M. S. 1917. A sketch classification of the pre-Jurassic tetrapod vertebrates. Proceedings of the Zoological Society of London 1917, 167–186.Google Scholar
Watson, D. M. S. 1954. On Bolosaurus and the origin and classification of reptiles. Bulletin of Museum of Comparative Zoology, Harvard College 111, 295–449.Google Scholar
Werneburg, R. 1985. Zur taxonomie der jungpaläozoischen familie Discosauriscidae (Romer 1947) (Batrachosauria, Amphibia). Freiberger Forschungshefte C 400, 117–133.Google Scholar
Werneburg, R. 1988. Die amphibienfauna der Oberhöfer Schichten (Unterrotliegendes, Unterperm) des Thüringer Waldes. Veröffentlichungn Naturhistorisches Museum Schloss Bertholdsburg Schleusingen 3, 2–27.Google Scholar
Werneburg, R. 1989. Labyrinthodontier (Amphibia) aus dem Oberkarbon und Unterperm Mitteleuropas – Systematik, Phylogenie und Biostratigraphie. Freiberger Forschungshefte C436, 7–57.Google Scholar
Werneburg, R. & Kiersnowski, H. 1996. A discosauriscid amphibian from the Rotliegend of the Intrasudetic Basin in Poland and its biostratigraphic importance. Acta Universitatis Wratislaviensis, Prace Geologiczno-Mineralogiczne 52, 117–125.Google Scholar
White, T. E. 1939. Osteology of Seymouria baylorensis Broili. Bulletin of Museum of Comparative Zoology, Harvard College 85, 325–409.Google Scholar