Hymenoptera Apocrita of Mesozoic.

@inproceedings{Rasnitsyn1975HymenopteraAO,
  title={Hymenoptera Apocrita of Mesozoic.},
  author={A. Rasnitsyn and Norm Johnson and Joe Cora},
  year={1975}
}
Ants and the fossil record.
Order Hymenoptera *
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