1. Estimating the effects of sampling biases on pterosaur diversity patterns: implications for hypotheses of bird/pterosaur competitive replacement. Issue 3 (8th April 2009) Authors: Butler, Richard J.; Barrett, Paul M.; Nowbath, Stephen; Upchurch, Paul Journal: Paleobiology Issue: Volume 35:Issue 3(2009) Page Start: 432 Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗