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Two new species of the bristle millipede genus Pauropsxenus (Diplopoda, Polyxenidae) in mid-Cretaceous Burmese amber
Su, Y.; Cai, C.; Huang, D. (2020). Two new species of the bristle millipede genus Pauropsxenus (Diplopoda, Polyxenidae) in mid-Cretaceous Burmese amber. Cretac. Res. 111: 104427. https://dx.doi.org/10.1016/j.cretres.2020.104427
In: Cretaceous Research. Elsevier: London; New York. ISSN 0195-6671; e-ISSN 1095-998X, more
Peer reviewed article  
Available in  Authors 
Keywords
    Geological time > Phanerozoic > Geological time > Mesozoic > Cretaceous
    Polyxenidae Lucas, 1840 [WoRMS]
Author keywords
    Palaeodiversity, Defensive behaviour
Authors  Top 
  • Su, Y.
  • Cai, C.
  • Huang, D.
Abstract
    Two new species of the bristle millipede family Polyxenidae, Pauropsxenus extraneus sp. nov. and Pauropsxenus extraneus sp. nov., are described from the mid-Cretaceous Burmese amber. They can be confidently placed in the extant genus Pauropsxenus (Polyxenidae) based on a set of critical characters. In additions, the morphological similarity of hooked caudal trichomes shared by the new species and extant counterparts may suggest a similar defensive function. Our discovery indicates that a prey-predator relationship between polyxenids and other soil animals has already been established in the Cretaceous period.
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