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Fossil Record A palaeontological open-access journal of the Museum für Naturkunde
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Volume 10, issue 1
Foss. Rec., 10, 17-37, 2007
https://doi.org/10.1002/mmng.200600016
© Author(s) 2007. This work is distributed under
the Creative Commons Attribution 3.0 License.
Foss. Rec., 10, 17-37, 2007
https://doi.org/10.1002/mmng.200600016
© Author(s) 2007. This work is distributed under
the Creative Commons Attribution 3.0 License.

  01 Feb 2007

01 Feb 2007

EurycormusEurypoma, two Jurassic actinopterygian genera with mixed identity

G. Arratia and H.-P. Schultze G. Arratia and H.-P. Schultze
  • The University of Kansas, Biodiversity Research Center and Department of Ecology and Evolutionary Biology, 1345 Jayhawk Blvd., Lawrence, KS 66045-7561, USA

Abstract. Three Late Jurassic actinopterygian species are commonly placed in the genus Eurycormus: E. egertoni, E. grandis and E. speciosus. A detailed comparison supports an earlier assignment to two different genera, Eurycormus Wagner, 1863 (speciosus) and Eurypoma Huxley, 1866 (E. egertoni and E. grande). Systematically, the two genera are only distantly related; Eurycormus belongs to the Teleosteomorpha, whereas Eurypoma is a halecomorph closely related to or a member of the Caturoidea within the Amiiformes.

Drei oberjurassische Actinopterygier-Arten, egertoni, grandis und speciosus, werden gewöhnlich zur Gattung Eurycormus gestellt. Ein detaillierter Vergleich der drei Arten bestätigt eine frühere Zuordnung zu zwei verschiedenen Gattungen, Eurycormus Wagner, 1863 (speciosus) und Eurypoma Huxley, 1866 (E. egertoni und E. grande), die zwei höheren Taxa innerhalb der Neopterygii zugeordnet werden: Eurycormus zu den Teleosteomorpha und Eurypoma zu den Amiiformes innerhalb der Halecomorphi, möglicherweise nahe oder innerhalb der Caturoidea.

doi:10.1002/mmng.200600016

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