Archaeomalthus-(Coleoptera, Archostemata) a ‘ghost adult’ of Micromalthidae from Upper Permian deposits of Siberia?

@article{Yan2019ArchaeomalthusColeopteraAA,
  title={Archaeomalthus-(Coleoptera, Archostemata) a ‘ghost adult’ of Micromalthidae from Upper Permian deposits of Siberia?},
  author={Evgeny V. Yan and Rolf G. Beutel and John F. Lawrence and Margarita Yavorskaya and Thomas H{\"o}rnschemeyer and Hans Pohl and D. V. Vassilenko and Alexey S. Bashkuev and Alexandr G. Ponomarenko},
  journal={Historical Biology},
  year={2019},
  volume={32},
  pages={1019 - 1027}
}
ABSTRACT Archaeomalthus synoriacos gen. et sp. nov. from the Upper Permian Babiy Kamen` locality indicates a remarkable evolutionary stability. Herein we report the oldest record of the family Micromalthidae, Archaeomalthus synoriacos gen. et sp. nov., which demonstrates several plesiomorphic character states, but generally retains most of the apomorphies of Micromalthidae. Archaeomalthus suggests that a distinct simplification of the morphology of adults already evolved in the late Paleozoic… 
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