A basal ornithopod dinosaur from the Cenomanian of the Czech Republic
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10389941" target="_blank" >RIV/00216208:11310/18:10389941 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1080/14772019.2017.1371258" target="_blank" >https://doi.org/10.1080/14772019.2017.1371258</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1080/14772019.2017.1371258" target="_blank" >10.1080/14772019.2017.1371258</a>
Alternative languages
Result language
angličtina
Original language name
A basal ornithopod dinosaur from the Cenomanian of the Czech Republic
Original language description
During their long evolutionary history, neornithischian dinosaurs diverged into several clades with distinctive adaptations. However, the early evolution within Neornithischia and the resolution of the phylogenetic relationships of taxa situated near the base of the clade remain problematic. This is especially true for those taxa traditionally placed at the base of Ornithopoda, either as hypsilophodontids' or at the base of the diverse clade Iguanodontia. Recent studies are improving our understanding of the anatomy and relationships of these taxa, with discoveries of several new non-ankylopollexian ornithopods from South America and Europe providing key insights into early ornithopod evolution and palaeobiogeography. Here, we describe a new basal ornithopod, Burianosaurus augustai gen. et sp. nov., based on a well-preserved femur from the upper Cenomanian strata (Korycany Beds of the Peruc-Korycany Formation) of the Czech Republic. The new taxon is diagnosed by a unique suite of characters and represents the only occurrence of a Cenomanian non-avian dinosaur in Central Europe north of the Alpine Tethyan areas. Histological examination of the type specimen reveals the presence of a loosely packed Haversian system which suggests relatively mature bone from a possible young adult. Phylogenetic analyses of two different data sets, selected to test the placement of B. augustai in various parts of the neornithischian tree, reconstruct B. augustai as a basal ornithopod, firmly nested outside Ankylopollexia. These results also support a diverse Elasmaria as a basal clade within Ornithopoda and reconstruct Hypsilophodon outside Ornithopoda as the sister taxon to Cerapoda. However, the relationships of hypsilophodontids' within Neornithischia remain contentious.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10505 - Geology
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Systematic Palaeontology
ISSN
1477-2019
e-ISSN
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Volume of the periodical
16
Issue of the periodical within the volume
11
Country of publishing house
GB - UNITED KINGDOM
Number of pages
13
Pages from-to
967-979
UT code for WoS article
000434707700004
EID of the result in the Scopus database
2-s2.0-85048994438