title: Paleocene origin of the cockroach families Blaberidae and Corydiidae: Evidence from Amur River region of Russia.
abstract: Morphna paleo sp. n., the earliest winged representative of any living cockroach genus and the earliest representative of the family Blaberidae, is described from the Danian Arkhara-Boguchan coal mine in the Amur River region (Russian Far East). The branched Sc and A suggest Ectobiidae (=Blattellidae) probably is not the ancestral family because Blaberidae were derived directly from the extinct family Mesoblattindae. The associated Danian locality Belaya Gora yielded Ergaula stonebut sp. n., the earliest record of the family Corydiidae. Both species belong to genera codominant in the Messel locality, thus validating their dominance in early Cenozoic assemblages.
authors.affiliation: Arthropoda Laboratory of the Paleontological Institute, Russian Academy of Sciences, Profsoyuznaya 123, 117868 Moscow, Russia. geolvrsa@savba.sk
authors.forename: Peter
authors.initials: P
authors.lastname: Vršanský
authors.forename: L'Ubomír
authors.initials: L
authors.lastname: Vidlička
authors.forename: Peter
authors.initials: P
authors.lastname: Barna
authors.forename: Eugenia
authors.initials: E
authors.lastname: Bugdaeva
authors.forename: Valentina
authors.initials: V
authors.lastname: Markevich
mesh_terms: D063147:Animal Distribution / Q000502:physiology*; D000818:Animals; D005075:Biological Evolution; D003058:Cockroaches / Q000033:anatomy & histology / Q000145:classification* / Q000235:genetics* / Q000502:physiology; D005260:Female; D005580:Fossils; D008297:Male; D012426:Russia