1. School of Earth Sciences, University of Bristol, Bristol BS8 1TF, U.K., , ,
2. 131 New Road, Woodston, Peterborough, Cambridgeshire PE2 9HE, U.K.,
3. Fossil Reptiles, Amphibians and Birds Section, The Natural History Museum, Cromwell Road, London SW7 5BD, U.K.
4. School of Ocean and Earth Science, National Oceanography Centre Southampton, University of Southampton, Waterfront Campus, European Way, Southampton SO14 3ZH, U.K.,
5. Bristol Museum & Art Gallery, Queens Road, Bristol BS8 1RL, U.K.,