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Journal article
Review of Mesozoic Perissommatidae (Insecta: Diptera)
Perissommatidae is a peculiar relict nematoceran family with one extant genus inhabiting Australia and South America. The family is known since the Middle Jurassic, but the fossil record is very poor and is restricted to Asia. The description of three species of Collessomma gen. nov. from Lower Cretaceous of Transbaikalia...Lukashevich, Elena ; Blagoderov, Vladimir
new taxa, fossil insects, Jurassic, Diptera, and Cretaceous