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The first members of the Palaeozoic insect family Aykhalidae (Megasecoptera) to be described were discovered in Siberia. Two new genera and three species from the Early Pennsylvanian (Namurian) Tupo Formation at Xiaheyan in northern China (Ningxia Hui Autonomous Region) are described on the basis of the patterns of their wing venation. An emended diagnosis of the Aykhalidae is provided based on the...
Fossil insects of the Late Carboniferous have been popularized as lost giants of the past. However, their small contemporaries are very poorly known. In this paper, we report the discovery of the smallest known member of the Palaeodictyoptera, an extinct group of sap-feeders including some of the largest insects ever known. The new representative, Tytthospilaptera wangae, collected at the Xiaheyan...
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