Conway Morris, S., and Robinson, R. A., 1986, Middle Cambrian priapulids and other soft-bodied fossils from Utah and Spain: University of Kansas Paleontological Contributions; Paper 117.
Sanz, J. L., Bonaparte, J. F., and Lacasa, A., 1988, Unusual Early Cretaceous birds from Spain: Nature, v. 331, p. 433-435.
| Home Page | Browse | Search | Feedback | Links |
| The FAQ | Must-Read Files | Index | Creationism | Evolution | Age of the Earth | Flood Geology | Catastrophism | Debates |