The Palaeontological Association Field Guide to Fossils, Fossils of the Rhaetian Penarth Group

The Rhaetian Penarth Group includes the former Westbury Beds, Cotham Beds, and White Lias. It crops out in a narrow strip from the Devon and Dorset coast to the mouth of the Tees, and is particularly well known from the exposures along the Bristol Channel. This diverse suite of late Triassic sedimentary rocks is internationally famous for the fossils that it yields, most notably from the bone beds. Coverage is comprehensive, with separate chapters on foraminifera, gastropods, bivalves, crustaceans, insects, echinoderms, other invertebrates, conodonts, fish, tetrapods, trace fossils and plants. There are background chapters on sedimentology, stratigraphy and the formation of the bone beds. The guide is copiously illustrated with specimens from all major UK public collections of Penarth Group fossils illustrated on 26 plates and 30 text-figures. It will be of use both to collectors who want to know more about this diverse and interesting suite of fossils, as well as to students of of geology who wish to understand their conditions of deposition and accumulation. 1. INTRODUCTION-THE PENARTH GROUP 9
Andrew Swift and David M. Martin

2. STRATIGRAPHY (INCLUDING BIOSTRATIGRAPHY) 15
Andrew Swift

2. BRIEF HISTORY OF PALAEONTOLOGICAL STUDIES 31
Andrew Swift

4. ASPECTS OF THE SEDIMENTOLOGY OF THE WESTBURY FORMATION 39
Joe H.S. Macquaker

5. BONE BEDS OF, THE WESTBURY FORMATION 49
David M. Martin

6. FORAMINIFERA 65
David M. Martin and Andrew Swift

7. GASTROPODS 75
Michael J. Barker and Martin C. Munt

8. BIVALVES 83
Hugh C. Ivimey-Cook, Peter Hodges, Andrew Swift and Jonathan D. Radley

9. ARTHROPODS 1: CRUSTACEANS 129
Ian D. Boomer, Christopher J. Duffin and Andrew Swift

10. ARTHROPODS 2: INSECTS 149
M.A. Jarzembowski

11. ECHINODERMS 161
Andrew Swift

12. OTHER INVERTEBRATES 169
Andrew Swift

13. CONODONTS 183
Andrew Swift

14. FISH 191
Christopher J. Duffin

15. TETRAPODS 223
Glenn W. Storrs

16. TRACE FOSSILS 239
Andrew Swift and Christopher J. Duffin

17. PLANTS 251
Andrew Swift

References 257

Systematic Index 299

Andrew Swift is presently Professor of Civil and Environmental Engineering and the Associate Director of the National Wind Institute at Texas Tech University, where his focus is on wind energy education and workforce development. His previous academic appointments include Director of the Wind Science and Engineering Research Center at Texas Tech and Dean of the College of Engineering at the University of Texas at El Paso.