Coliimorphae

This superorder is represented by a single order, Coliiformes: 

References

Ksepka, D.T. and Clarke, J.A. (2010), New fossil mousebird (Aves: Coliiformes) with feather preservation provides insight into the ecological diversity of an

Eocene North American avifauna. Zool J. Linn. Soc. 160(4), 685-706. (abstract)

Zelenkov, N.V. and Dyke, G.J. (2008), The fossil record and evolution of mousebirds (Aves: Coliiformes). Palaeontology 51(6), 1403-1418. (pdf)