On the placement of the Cretaceous orthopteran Brauckmannia groeningae from Brazil, withnotes on the relationships of Schizodactylidae (Orthoptera, Ensifera)

Sam W. Heads, Léa Leuzinger

Research output: Contribution to journalArticle

Abstract

The fossil orthopteran Brauckmannia groeningae Martins-Neto (Orthoptera, Ensifera) from the Early Cretaceous Crato Formation of Brazil, currently misplaced at boththe genus and family level, is transferred to the family Schizodactylidae and assigned to the extant genus Schizodactylus Brulle ́; ergo, Brauckmannia enters synonymy under Schizodactylus and Brauckmanniidae enters synonymy under Schizodactylidae. Schizodactylus groeningae (Martins-Neto), comb. n. agrees in size and general habitus withextant members of the genus, but can be readily separated by the robust, subovoid form of the metatibiae and the distinctive morphology of the lateral metabasitarsal processes. This species represents the first fossil occurrence of Schizodactylidae and the only New World record of this ancient lineage. Phylogenetic relationships of the schizodactylids are reviewed and a sister-group relationship with Grylloidea advocated based on a reappraisal of morphological and molecular evidence.

Original languageEnglish (US)
Pages (from-to)17-30
Number of pages14
JournalZooKeys
Volume77
DOIs
StatePublished - Jul 11 2011

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Orthoptera
fossils
fossil
Cretaceous
Brazil
phylogenetics
phylogeny
orthopteran
family
world

Keywords

  • Brauckmannia
  • Brauckmanniidae
  • Brazil
  • Crato formation
  • Early cretaceous
  • Ensifera
  • Gryllidea
  • Orthoptera
  • Phylogeny
  • Schizodactylidae
  • Schizodactylus

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Animal Science and Zoology

Cite this

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title = "On the placement of the Cretaceous orthopteran Brauckmannia groeningae from Brazil, withnotes on the relationships of Schizodactylidae (Orthoptera, Ensifera)",
abstract = "The fossil orthopteran Brauckmannia groeningae Martins-Neto (Orthoptera, Ensifera) from the Early Cretaceous Crato Formation of Brazil, currently misplaced at boththe genus and family level, is transferred to the family Schizodactylidae and assigned to the extant genus Schizodactylus Brulle ́; ergo, Brauckmannia enters synonymy under Schizodactylus and Brauckmanniidae enters synonymy under Schizodactylidae. Schizodactylus groeningae (Martins-Neto), comb. n. agrees in size and general habitus withextant members of the genus, but can be readily separated by the robust, subovoid form of the metatibiae and the distinctive morphology of the lateral metabasitarsal processes. This species represents the first fossil occurrence of Schizodactylidae and the only New World record of this ancient lineage. Phylogenetic relationships of the schizodactylids are reviewed and a sister-group relationship with Grylloidea advocated based on a reappraisal of morphological and molecular evidence.",
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