A new extinct genus of Glandulariini with two species from Upper Cretaceous Burmese amber (Coleoptera: Staphylinidae: Scydmaeninae). (April 2017)

• Record Type: Journal Article
• Authors: Jałoszyński, Paweł; Yamamoto, Shûhei; Takahashi, Yui
• Is Part Of: Cretaceous research. Volume 72(2017)
• Page Start: 142
• Page End: 150
• Publication Date: 2017-04
• Subjects: Fossil -- Beetle -- Laurasia -- Evolution -- Cenomanian; AMNH American Museum of Natural History, New York, USA; Geology, Stratigraphic -- Cretaceous -- Periodicals; 551.77
• DOI: 10.1016/j.cretres.2016.12.021
• Languages: English
• ISSNs: 0195-6671

Abstract

Abstract: The Glandulariini (=Cyrtoscydmini) is today the largest, most species-rich and most diverse tribe of Scydmaeninae comprising over 70% of the extant species of this subfamily. Named genera and species of Glandulariini are known mostly from Miocene to Eocene ambers, with only one, recently described Mesozoic taxon. Here we report the second genus of Glandulariini from Upper Cretaceous Burmese amber, Cenomaniola Jałoszyński and Yamamoto, gen. nov., with two species, C. carinata Jałoszyński and Yamamoto, sp. nov. and C. macrophthalma Jałoszyński and Yamamoto, sp. nov. Cenomaniola shows the general body plan typical of the ' Euconnus complex' within Glandulariini, with thick bristles on the sides of head and pronotum, a character conserved for nearly a hundred million years. With the previous discovery of Scydmobisetia Jałoszyński and Yamamoto, two major body forms typical of the extant Glandulariini are already proved to have differentiated in or before the Late Cretaceous. This demonstrates early origins and a long conservation of ' Euconnus -like' and ' Sciacharis/Horaeomorphus -like' body plan in the currently largest group among Scydmaeninae. Highlights: The second Mesozoic genus of Glandulariini is described. Cenomaniola gen. nov. provides new data on most conserved morphological characters in Glandulariini. Two main types of body form known in extant Glandulariini are documented from the Late Cretaceous.