TABLE OF CONTENTS

INTRODUCTION ix
David D. Gillette

ACKNOWLEDGMENTS xi
David D. Gillette

PALEOZOIC ERA

2. LATE PALEOZOIC FISHES OF UTAH 13
Stuart S. Sumida, Gavan M. Albright, Elizabeth A. Rega

3. LATE PALEOZOIC AMPHIBIAN-GRADE TETRAPODS OF UTAH 21
Stuart S. Sumida, James B. D. Walliser, and R. Eric Lombard

4. LATE PALEOZOIC AMNIOTES AND THEIR NEAR RELATIVES FROM UTAH AND NORTHEASTERN ARIZONA, WITH COMMENTS ON THE PERMIAN-PENNSYLVANIAN BOUNDARY IN UTAH AND NORTHERN ARIZONA 31
Stuart S. Sumida, R. Eric Lombard, David S Berman, and Amy C. Henrici

MESOZOIC ERA

6. A DINOSAUR TRACK SITE IN THE NAVAJO-NUGGET SANDSTONE, RED FLEET RESERVOIR, UINTAH COUNTY, UTAH 51
Alden H. Hamblin and Sue Ann Bilbey

7. THE FIRST DISCOVERIES OF DINOSAURS IN THE AMERICAN WEST 59
Brent H. Breithaupt

8. MARSH AND "MEGALOSAURUS" - UTAH’S FIRST THEROPOD DINOSAUR 67
Sue Ann Bilbey and James Evan Hall

9. THE HISTORY OF DINOSAUR NATIONAL MONUMENT'S DOUGLASS QUARRY: THE PARK SERVICE YEARS 71
Ann S. Elder

10. BIOSTRATIGRAPHY OF DINOSAURS IN THE UPPER JURASSIC MORRISON FORMATION OF THE WESTERN INTERIOR, USA 77
Christine E. Turner and Fred Peterson

11. STRATIGRAPHIC AND GEOGRAPHIC DISTRIBUTION OF FOSSILS IN THE UPPER PART OF THE UPPER JURASSIC MORRISON FORMATION OF THE ROCKY MOUNTAIN REGION 115
George F. Engelmann

12. TAPHONOMY OF THE CLEVELAND-LLOYD DINOSAUR QUARRY IN THE MORRISON FORMATION, CENTRAL UTAH - A LETHAL SPRING-FED POND 121
Sue Ann Bilbey

13. MORPHOLOGICAL VARIATION IN A LARGE SPECIMEN OF ALLOSAURUS FRAGILIS, UPPER JURASSIC MORRISON FORMATION, EASTERN UTAH 135
David K. Smith, Dean R. Richmond, and Paul J. Bybee

14. THE BEAKED JAWS OF STEGOSAURS AND THEIR IMPLICATIONS FOR OTHER ORNITHISCHIANS 143
Stephen A. Czerkas

15. UPPER JURASSIC LIZARDS FROM THE MORRISON FORMATION OF DINOSAUR NATIONAL MONUMENT, UTAH 151
Susan E. Evans and Daniel J. Chure

16. GLIRODON GRANDIS, A NEW MULTITUBERCULATE MAMMAL FROM THE UPPER JURASSIC MORRISON FORMATION 161
George F. Engelmann and George Callison

17. DEEP DINOSAUR TRACKS IN THE MORRISON FORMATION: SOLE MARKS THAT ARE REALLY SOLE MARKS 179
George F. Engelmann and Stephen T. Hasiotis

18. POSSIBLE TURTLE TRACKS FROM THE MORRISON FORMATION OF SOUTHERN UTAH 185
John R. Foster, Martin G. Lockley, and Janet Brockett

19. PRELIMINARY REPORT ON BORINGS IN JURASSIC DINOSAUR BONES: EVIDENCE FOR INVERTEBRATE-VERTEBRATE INTERACTIONS 193
Stephen T. Hasiotis, Anthony R. Fiorillo, and Rebecca R. Hanna

20. DISTRIBUTION OF VERTEBRATE FAUNAS IN THE CEDAR MOUNTAIN FORMATION, EAST-CENTRAL UTAH 201
James I. Kirkland, Richard L. Cifelli, Brooks B. Britt, Donald L. Burge, Frank L. DeCourten, Jeffery G. Eaton, and J. Michael Parrish

21. MEDIAL CRETACEOUS VERTEBRATES FROM THE CEDAR MOUNTAIN FORMATION, EMERY COUNTY, UTAH: THE MUSSENTUCHIT LOCAL FAUNA 219
Richard L. Cifelli, Randall L. Nydam, James D. Gardner, Anne Weil, Jeffrey G. Eaton, James I. Kirkland, and Scott K. Madsen

22. ANKYLOSAURS (DINOSAURIA: ORNITHISCHIA) OF THE CEDAR MOUNTAIN FORMATION, UTAH, AND THEIR STRATIGRAPHIC DISTRIBUTION 243
Kenneth Carpenter, James I. Kirkland, Donald Burge, and John Bird

23. DINOSAUR TRACKS FROM THE CEDAR MOUNTAIN FORMATION OF EASTERN UTAH: A PRELIMINARY REPORT 253
Martin G. Lockley, James I. Kirkland, Frank L. DeCourten, Brooks B. Britt, and Stephen T. Hasiotis

24. NON-MAMMALIAN MICROVERTEBRATE REMAINS FROM THE ROBISON EGGSHELL SITE, CEDAR MOUNTAIN FORMATION (LOWER CRETACEOUS), EMERY COUNTY, UTAH 259
Anthony R. Fiorillo

25. OCCURRENCE AND BIOSTRATIGRAPHIC FRAMEWORK OF A PLESIOSAUR FROM THE UPPER CRETACEOUS TROPIC SHALE OF SOUTHWESTERN UTAH 269
David D. Gillette, Martha C. Hayden, and Alan L. Titus

26. PROGNATHODON STADTMANI NEW SPECIES (MOSASAURIDAE) FROM THE CRETACEOUS (EARLY CAMPANIAN) MANCOS SHALE 275
Michael S. Kass

27. HADROSAUR SKIN IMPRESSIONS FROM THE UPPER CRETACEOUS NESLEN FORMATION, BOOK CLIFFS, UTAH: MORPHOLOGY AND PALEOENVIRONMENTAL CONTEXT 295
Brian G. Anderson, Reese E. Barrick, Mary L. Droser, and Kenneth L. Stadtman

28. POLYGLYPHANODONTINAE (SQUAMATA:TEIIDAE) FROM THE MEDIAL AND LATE CRETACEOUS: NEW TAXA FROM UTAH, U.S.A. AND BAJA CALIFORNIA DEL NORTE, MEXICO 303
Randall L. Nydam

29. DINOSAUR TEETH FROM THE UPPER CRETACEOUS (TURONIAN-JUDITHIAN) OF SOUTHERN UTAH 319
J. Michael Parrish

30. VERTEBRATE PALEONTOLOGY OF THE UPPER CRETACEOUS ROCKS OF THE MARKAGUNT PLATEAU, SOUTHWESTERN UTAH 323
Jeffrey G. Eaton, Steve Diem, J. David Archibald, Christopher Schierup, and Heidi Munk

31. VERTEBRATE PALEONTOLOGY OF THE PAUNSAUGUNT PLATEAU, UPPER CRETACEOUS, SOUTHWESTERN UTAH 335
Jeffrey G. Eaton

32. VERTEBRATE PALEONTOLOGY OF THE IRON SPRINGS FORMATION, UPPER CRETACEOUS, SOUTHWESTERN UTAH 339
Jeffrey G. Eaton

33. CRETACEOUS VERTEBRATE FAUNAS FROM THE KAIPAROWITS PLATEAU, SOUTH-CENTRAL UTAH 345
Jeffrey G. Eaton, Richard L. Cifelli, J. Howard Hutchison, James I. Kirkland, and J. Michael Parrish

34. PTEROSAUR AND BIRD TRACKS FROM A NEW LATE CRETACEOUS LOCALITY IN UTAH 355
Martin G. Lockley

35. EGGS AND EGGSHELL FROM THE UPPER CRETACEOUS NORTH HORN FORMATION, CENTRAL UTAH 361
Emily S. Bray

36. VERTEBRATE FAUNAS OF THE NORTH HORN FORMATION (UPPER CRETACEOUS-LOWER PALEOCENE), EMERY AND SANPETE COUNTIES, UTAH 377
Richard L. Cifelli, Randall L. Nydam, Jeffrey G. Eaton, James D. Gardner, and James I. Kirkland

37. BIOSTRATIGRAPHIC ASPECTS OF THE CRETACEOUS-TERTIARY (KT) BOUNDARY INTERVAL AT NORTH HORN MOUNTAIN, EMERY COUNTY, UTAH 389
Rose Difley and A. A. Ekdale

CENOZOIC ERA

39. THE MAMMALS OF THE EOCENE DUCHESNE RIVER FORMATION 421
D. Tab Rasmussen, Alden H. Hamblin, and Alan R. Tabrum

40. MIDDLE EOCENE VERTEBRATES FROM THE UINTA BASIN, UTAH, AND THEIR RELATIONSHIP WITH FAUNAS FROM THE SOUTHERN GREEN RIVER BASIN, WYOMING 429
Gregg F. Gunnell and William S. Bartels

41. VERTEBRATE FOOTPRINTS IN THE DUCHESNE RIVER AND UINTA FORMATIONS (MIDDLE TO LATE EOCENE), UINTA BASIN, UTAH 443
Alden H. Hamblin, William A. S. Sarjeant, and David A. E. Spalding

42. COMMENTS ON AMPHIBIANS FROM THE GREEN RIVER FORMATION, WITH A DESCRIPTION OF A FOSSIL TADPOLE 455
James D. Gardner

43. VERTEBRATES OF THE TURTLE BASIN LOCAL FAUNA, MIDDLE EOCENE, SEVIER PLATEAU, SOUTH-CENTRAL UTAH 463
Jeffrey G. Eaton, J. Howard Hutchison, Patricia A. Holroyd, Patrick M. Goldstrand, and William W. Korth

44. LATE TERTIARY BASINS AND VERTEBRATE FAUNAS ALONG THE NEVADA-UTAH BORDER 469
Robert E. Reynolds and Everett H. Lindsay

45. A PRELIMINARY REPORT OF A NEW CLARENDONIAN (LATE MIOCENE) MAMMALIAN FAUNA FROM NORTHWESTERN UTAH 479
Allen R. Tedrow and Steven F. Robison

46. AN ADDITIONAL OCCURRENCE OF SIMOCYON (MAMMALIA, CARNIVORA, PROCYONIDAE) IN NORTH AMERICA 487
Allen R. Tedrow, Jon A. Baskin, and Steven F. Robison

47. PRELIMINARY REPORT ON THE LITTLE DELL DAM FAUNA, SALT LAKE COUNTY, UTAH (MIDDLE PLEISTOCENE, IRVINGTONIAN LAND MAMMAL AGE) 495
David D. Gillette, Christopher J. Bell, and Martha C. Hayden

48. LATE QUATERNARY VERTEBRATE HISTORY OF THE GREAT BASIN 501
Timothy H. Heaton

49. THE FIRST RECORD OF JEFFERSON'S GROUND SLOTH, MEGALONYX JEFFERSONII, IN UTAH (PLEISTOCENE, RANCHOLABREAN LAND MAMMAL AGE) 509
David D. Gillette, H. Gregory McDonald, and Martha C. Hayden

50. CATALOGUE OF NEW PLEISTOCENE MAMMALIAN SITES AND RECOVERED FOSSILS FROM UTAH 523
David D. Gillette and Wade E. Miller

51. THE COLUMBIAN MAMMOTH (MAMMUTHUS COLUMBI) FROM ESCALANTE VALLEY, IRON COUNTY, UTAH -- DISCOVERY AND IMPLICATIONS 531
Paul R. Larson

52. AN EARLY HOLOCENE, HIGH-ALTITUDE VERTEBRATE FAUNULE FROM CENTRAL UTAH 537
Kent S. Smith, Richard L. Cifelli, and Nicholas J. Czaplewski

AUTHOR INDEX 545

KEY WORD INDEX 546