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- Title
Sumixam maximus gen. and sp. nov., a New Pennsylvanian Species of Archaeorthoptera (Neoptera; Indiana, USA).
- Authors
BÉTHOUX, Olivier; GROSSMANN, Christin
- Abstract
A new Mazon-Creek-type fossil specimen is described as Sumixam maximus gen. and sp. nov., assigned to the taxon Archaeorthoptera Béthoux and Nel, 2002 (composed of Orthoptera and some fossil relatives): it exhibits one of the diagnostic character states of this taxon, which is the fusion of CuA (emerging from M + CuA) with CuP, or a branch of it. A more precise taxonomic assignment is out of reach. The new taxon exhibits a fusion of the anterior branch of MA with RP, and a point of divergence of MA and MP located near the point of divergence of CuA (from M + CuA), but lack a branching of CuPa. This unique combination of character states is probably derived with respect to a number of contemporaneous species. Sumixam maximus gen. and sp. nov. is most likely the closest known relative of the panorthopterans, which include all the recent Archaeorthoptera.
- Subjects
PENNSYLVANIA; FOSSIL orthoptera; PENNSYLVANIAN stratigraphic geology; BIOTIC communities; SPECIES diversity
- Publication
Acta Geologica Sinica (English Edition), 2011, Vol 85, Issue 3, p515
- ISSN
1000-9515
- Publication type
Article
- DOI
10.1111/j.1755-6724.2011.00445.x