@article {24569,
	title = {Discussions on the age of the Daohugou fauna - evidence from invertebrates},
	journal = {Progress in Natural Science},
	volume = {16},
	number = {Special Issue},
	year = {2006},
	month = {2006},
	pages = {308-312},
	author = {Huang, D.-Y and Andre Nel and Shen, Y.-B and Paul A. Selden and Lin, Q.-B}
}
