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Figure 4 | BMC Evolutionary Biology

Figure 4

From: A new Cretaceous genus of xyelydid sawfly illuminating nygmata evolution in Hymenoptera

Figure 4

Noncladistic cladogram of basal Hymenoptera after Rasnitsyn (2002, fig 331, partial, modified), with forewing venation containing nygmata among fossil taxa mapped onto figure. A, Parasialis latipennis Ponomarenko, 1977 (Parasialidae). B, Xyelidae (based on Asioxyela paurura Rasnitsyn, 1969 and Madygenius primitivus Rasnitsyn, 1969; after Shcherbakov, 2013). C, Rectilyda sticta gen. et sp. nov. (Xyelydidae).

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