DOCSLIB.ORG

1996 NMGS Spring Meeting: Abstract-1715

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

EVIDENCE OF GREGARIOUS BEHAVIOR IN DINOSAURS FROM A NEW TRACK-SITE, MESA RICA SANDSTONE (LOWER CRETACEOUS), NORTHEASTERN NEW MEXICO Adrian P. Hunt1 and B. R. Watts1 1Mesalands Museum, Mesa Technical College, 911 South Tenth Street, Tucumcari, NM, New Mexico, 88401 A new tracksite has been located near Mills, Harding County, New Mexico in the Mesa Rica Sandstone (Lower Cretaceous; late Albian). The tracksite is located on the rim of Mills Canyon in the upper portion of the Mesa Rica Sandstone. Isolated and poorly preserved tracks occur in nearby outcrops. The main tracksite preserves portions of about 12 trackways of a large bipedal dinosaur. The pedal tracks are wider than long, have bilobed heels and average 30-40 cm in length; they represent the iguanodontid ichnogenus Caririchnium. The new tracksite is an extension of the Dakota megatracksite (DM) which extends from Boulder, Colorado to Mosquero, New Mexico. All DM tracksites are in the upper Mesa Rica Sandstone or lower Pajarito Formation, or their nomenclatural equivalents. These tracksites formed on the western margin of an epeiric seaway. The trackways at the new tracksite exhibit parallel orientation which is suggestive of gregarious behavior. The only other DM site in New Mexico to show this feature is near Mosquero. At Mosquero, the tracks trend North- North-East and roughly paralleI the shoreline trend, but those at the new site trend East. Late Triassic tracksites in eastern New Mexico indicate gregarious behavior in prosauropods (Pseudotetrasauropus; Redonda Formation) and theropods (Grallator: Sheep Pen Sandstone). The new tracksite and the one at Mosquero are the only to exhibit gregarious behavior in ornithischian dinosaurs in New Mexico. Keywords: paleontology, dinosaur, tracks pp. 67 1996 New Mexico Geological Society Annual Spring Meeting April 12, 1996, Macey Center.
Recommended publications
  • Geologic Studies of Union County, New Mexico

    Geologic Studies of Union County, New Mexico

    Bulletin 63 New Mexico Bureau of Mines & Mineral Resources A DIVISION OF NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY Geologic Studies of Union County, New Mexico by Brewster Baldwin and William R. Muehlberger SOCORRO 1959 NEW MEXICO INSTITUTE OF MINING & TECHNOLOGY KENNETH W. FORD, President NEW MEXICO BUREAU OF MINES & MINERAL RESOURCES FRANK E. KOTTLOWSKI, Director GEORGE S. Austin, Deputy Director BOARD OF REGENTS Ex Officio Bruce King, Governor of New Mexico Leonard DeLayo, Superintendent of Public Instruction Appointed William G. Abbott, Secretary-Treasurer, 1961-1985, Hobbs Judy Floyd, President, 1977-1981, Las Cruces Owen Lopez, 1977-1983, Santa Fe Dave Rice, 1972-1983, Carlsbad Steve Torres, 1967-1985, Socorro BUREAU STAFF Full Time MARLA D. ADKINS, Assistant Editor LYNNE MCNEIL, Staff Secretary ORIN J. ANDERSON, Geologist NORMA J. MEEKS, Department Secretary RUBEN ARCHULETA, Technician I ARLEEN MONTOYA, Librarian/Typist WILLIAM E. ARNOLD, Scientific Illustrator SUE NESS, Receptionist ROBERT A. BIEBERMAN, Senior Petrol. Geologist ROBERT M. NORTH, Mineralogist LYNN A. BRANDVOLD, Chemist JOANNE C. OSBURN, Geologist CORALE BRIEBLEY, Chemical Microbiologist GLENN R. OSBURN, Volcanologist BRENDA R. BROADWELL, Assoc. Lab Geoscientist LINDA PADILLA, Staff Secretary FRANK CAMPBELL, Coal Geologist JOAN C. PENDLETON, Associate Editor RICHARD CHAMBERLIN, Economic Geologist JUDY PERALTA, Executive Secretary CHARLES E. CHAPIN, Senior Geologist BARBARA R. Popp, Lab. Biotechnologist JEANETTE CHAVEZ, Admin. Secretary I ROBERT QUICK, Driller's Helper/Driller RICHARD R. CHAVEZ, Assistant Head, Petroleum MARSHALL A. REITER, Senior Geophyicist RUBEN A. CRESPIN, Laboratory Technician II JACQUES R. RENAULT, Senior Geologist Lois M. DEVLIN, Director, Bus.-Pub. Office JAMES M. ROBERTSON, Mining Geologist KATHY C. EDEN, Editorial Technician GRETCHEN H.
  • Black Mesa State Park and Preserve Resource Management Plan 2013 [Updated April 2015]

    Black Mesa State Park and Preserve Resource Management Plan 2013 [Updated April 2015]

    Black Mesa State Park and Preserve Resource Management Plan 2013 [Updated April 2015] Cimarron County, Oklahoma Lowell Caneday, Ph.D. Hung Ling (Stella) Liu, Ph.D. Kaowen (Grace) Chang, Ph.D. Michael Bradley, Ph.D. This page intentionally left blank. Acknowledgements The authors acknowledge the assistance of numerous individuals in the preparation of this Resource Management Plan (RMP). On behalf of the Oklahoma Tourism and Recreation Department’s Division of State Parks, staff members were extremely helpful in providing access to information and in sharing of their time. The essential staff providing assistance for the development of the RMP included Bruce Divis, Regional Manager of the Western Region, with assistance from other members of the staff throughout OTRD. In particular, assistance was provided by Deby Snodgrass, Kris Marek, and Doug Hawthorne – all from the Oklahoma City office of the Oklahoma Tourism and Recreation Department. Significant information was also provided by individuals from the Kenton Museum, from the Cimarron County Historical Society, and from Ron Mills, a former manager of Black Mesa State Park. It is the purpose of the Resource Management Plan to be a living document to assist with decisions related to the resources within the park and the management of those resources. The authors’ desire is to assist decision-makers in providing high quality outdoor recreation experiences and resources for current visitors, while protecting the experiences and the resources for future generations. Lowell Caneday, Ph.D., Regents Professor Leisure Studies Oklahoma State University Stillwater, OK 74078 i Abbreviations and Acronyms ADAAG ................................................. Americans with Disabilities Act Accessibility Guidelines CDC .....................................................................................................
  • The Late Triassic Sauropod Track Reconrd Comes Into Focus: Old Legacies and New Paradigms Martin G

    The Late Triassic Sauropod Track Reconrd Comes Into Focus: Old Legacies and New Paradigms Martin G

    New Mexico Geological Society Downloaded from: http://nmgs.nmt.edu/publications/guidebooks/52 The Late Triassic sauropod track reconrd comes into focus: Old legacies and new paradigms Martin G. Lockley, Joanna L. Wright, Adrian P. Hunt, and Spencer G. Lucas, 2001, pp. 181-190 in: Geology of Llano Estacado, Lucas, Spencer G.;Ulmer-Scholle, Dana; [eds.], New Mexico Geological Society 52nd Annual Fall Field Conference Guidebook, 340 p. This is one of many related papers that were included in the 2001 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks.
  • Geologic Map of the Boise City 30' X 60' Quadrangle

    Geologic Map of the Boise City 30' X 60' Quadrangle

    LO EO GIC G A A L M S O U Oklahoma Geologic Quadrangle OGQ-43 H R A V L E OKLAHOMA GEOLOGICAL SURVEY Geologic Map of the Boise City K Y O Charles J. Mankin, Director ′ ′ 1 30 X 60 Quadrangle 9 8 0 0 8 0 2 (previously Open-File Report OF17-2003) CE L NTENNIA CORRELATION OF UNITS Kda Qcs 150 000 FEET TRdo Jmo Kda Qcs (KANS.) Kda Kda Y Qal R Qal 125 000 FEET Jex Kkc Kkc Kkc Qcs Kda Qal Qcl A (COLO.) Jmo Jmo Kda Nog QpyQpy Kda N T 6 N Kkc Nog R QtgQtg Kda Kkc Qds E QdsQds TRdo Nog Jmo T QcsQcs QclQcl C Kda A Kkc Qds I Kkc U Jex Kda O R Q T do Pleistocene Z UNION CO. Jmo Kkc Jex O 750 Kda Kda Kda Kkc Nog N Kda Jex E UNCONFORMITY Jex Tog Jmo Kda Kkc C 1 075 Jmo Jmo TR do Kda Qal Nog Nrb 4090000mN Nrb Jex Jmo Kkc Kkc NEOGENE MiocenePliocene - Qal Kda Kkc Qal Kkc Nog Kda Kda 125 Jmo Nog Kkc Kda Jmo TR do UNCONFORMITY Rdo Kkc Kkc T Kkc Kkc Kda Jmo 100 Kda Nog Nog Jmo Kkc Jmo Qpy KggKgg Kda TR do Gulfian Jex Kkc Jmo Qal Jmo Jex Qds Kda Qpy Kkc Nog CRETACEOUS U. NEW MEXICO Kda T 5 N Jmo Kda Nog TR do 725 Kda Kda Jex Kda TR do Kda Kkc Nog Kkc Kkc Qcl Jex KdaKda 1 050 Kkc Kkc Jex Qal KkcKkc Kgg Comanchean Nog Kda L.
  • Measured Strati Graphic Sections of Uranium-Bearing Upper Triassic

    Measured Strati Graphic Sections of Uranium-Bearing Upper Triassic

    UNITED STATES DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY Measured strati graphic sections of uranium-bearing Upper Triassic rocks of the Dockum Basin, eastern New Mexico, west Texas, and the Oklahoma Panhandle with brief discussion of stratigraphic problems by Warren I. Finch 1 and James C. Wright* Open-File Report 83-701 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards and stratigraphic nomenclature. *Deceased *U.S. Geological Survey, Box 25046, MS 916, Denver Federal Center, Denver, Colorado 80225 1983 CONTENTS Page Statement ............................................................ 1 Measured sections..................................................... 4 New Mexi co....................................................... 4 Guadalupe County............................................ 4 Santa Rosa railroad-cut section........................ 4 Sunshine Mesa-State Route 156 road-cut section......... 9 Quay County................................................. 11 Dripping Triangulation Station section................. 11 Henry Pittman Ranch section............................ 15 Rana Arroyo section.................................... 20 Revuelto Creek-U.S. Route 66 section................... 23 Texas............................................................ 26 Armstrong County............................................ 26 State Route 284 - Pleasant Creek section............... 26 Borden County............................................... 31 Muchakooago Peak
  • National Park Service Paleontological Research

    National Park Service Paleontological Research

    169 NPS Fossil National Park Service Resources Paleontological Research Edited by Vincent L. Santucci and Lindsay McClelland Technical Report NPS/NRGRD/GRDTR-98/01 United States Department of the Interior•National Park Service•Geological Resource Division 167 To the Volunteers and Interns of the National Park Service iii 168 TECHNICAL REPORT NPS/NRGRD/GRDTR-98/1 Copies of this report are available from the editors. Geological Resources Division 12795 West Alameda Parkway Academy Place, Room 480 Lakewood, CO 80227 Please refer to: National Park Service D-1308 (October 1998). Cover Illustration Life-reconstruction of Triassic bee nests in a conifer, Araucarioxylon arizonicum. NATIONAL PARK SERVICE PALEONTOLOGICAL RESEARCH EDITED BY VINCENT L. SANTUCCI FOSSIL BUTTE NATIONAL MONUMNET P.O. BOX 592 KEMMERER, WY 83101 AND LINDSAY MCCLELLAND NATIONAL PARK SERVICE ROOM 3229–MAIN INTERIOR 1849 C STREET, N.W. WASHINGTON, D.C. 20240–0001 Technical Report NPS/NRGRD/GRDTR-98/01 October 1998 FORMATTING AND TECHNICAL REVIEW BY ARVID AASE FOSSIL BUTTE NATIONAL MONUMENT P. O . B OX 592 KEMMERER, WY 83101 164 165 CONTENTS INTRODUCTION ...............................................................................................................................................................................iii AGATE FOSSIL BEDS NATIONAL MONUMENT Additions and Comments on the Fossil Birds of Agate Fossil Beds National Monument, Sioux County, Nebraska Robert M. Chandler ..........................................................................................................................................................................
  • Triassic Vertebrate Paleontology in New Mexico

    Triassic Vertebrate Paleontology in New Mexico

    Archived version from NCDOCKS Institutional Repository http://libres.uncg.edu/ir/asu/ TRIASSIC VERTEBRATE PALEONTOLOGY IN NEW MEXICO By: Andrew B. Heckert and Spencer G. Lucas Abstract The Triassic vertebrate paleontological record of New Mexico includes important assemblages of tetrapod fossils from both the Middle Triassic Moenkopi Formation and the Upper Triassic Chinle Group. The Anton Chico Member of the Moenkopi Formation preserves primarily temnospondyl amphibian body fossils, but the record of reptiles comprises both sparse body fossil assemblages and more abundant track assemblages, mostly of chirotheriid reptiles. A bonebed accumulation of temnospondyls assigned to Eocyclotosaurus appetolatus is particularly notable. The Upper Triassic Chinle Group in New Mexico preserves an array of vertebrate faunal assemblages that represent the entirety of Chinle “time,” and includes numerous bonebeds of Revueltian age as well as the best records of Apachean vertebrates in the American West. These include the characteristic assemblages of the Revueltian and Apachean land- vertebrate faunachrons. Lucas, S. G. and Sullivan, R. M., eds. , 2015, Fossil Vertebrates in New Mexico. New Mexico Museum of Natural History and Science Bulletin 68. New Mexico Museum of Natural History and Science Lucas, S. G. and Sullivan, R. M., eds. , 2015, Fossil Vertebrates in New Mexico. New Mexico Museum of Natural History and Science Bulletin 68. 77 TRIASSIC VERTEBRATE PALEONTOLOGY IN NEW MEXICO ANDREW B. HECKERT1 and SPENCER G. LUCAS2 1Department of Geology, ASU Box 32067, Appalachian State University, Boone, NC 28608-2067 -email: [email protected]; 2New Mexico Museum of Natural History & Science, 1801 Mountain Road NW, Albuquerque, NM 87104 Abstract—The Triassic vertebrate paleontological record of New Mexico includes important assemblages of tetrapod fossils from both the Middle Triassic Moenkopi Formation and the Upper Triassic Chinle Group.
  • Additions and Comments on the Fossil Birds of Agate Fossil Beds National Monument, Sioux County, Nebraska

    Additions and Comments on the Fossil Birds of Agate Fossil Beds National Monument, Sioux County, Nebraska

    ADDITIONS AND COMMENTS ON THE FOSSIL BIRDS OF AGATE FOSSIL BEDS NATIONAL MONUMENT, SIOUX COUNTY, NEBRASKA ROBERT M. CHANDLER Department of Biological and Environmental Sciences Georgia College & State University, Milledgeville, GA 31061-0490 ABSTRACT—Fossils from Agate Fossil Beds National Monument in western Nebraska have been a rich source of paleontological studies for many years. Fossil bird discoveries from the Monument have been far fewer than mammals and their reports have been sporadic and scattered throughout the literature. Although less common than mammals, the paleoavifauna of the Monument is very interesting in its level of diversity, ecological indicators, and from the perspective of historical biogeography with Old and New World representatives. The paleoavifauna has representatives from at least six families in four orders. Promilio efferus is the earliest record for a kite in North INTRODUCTION America (Brodkorb, 1964:274). Wetmore (1923:504) had ten- T HAS been more than ten years since Becker tatively placed efferus in the genus Proictinia Shufeldt (1915: I (1987a:25) briefly reviewed the fossil birds of the “Agate 301) from the late Miocene [latest Clarendonian or earliest Fossil Quarries.” The specimens described herein were col- Hemphillian, Long Island local fauna, Phillips County, Kan- lected in 1908 by field crews from the University of Nebraska sas; see Steadman (1981:171) for comments on age of Long State Museum, but have never been identified or reported upon Island local fauna]. Later, Wetmore (1958:2) decided that until now. This collection includes the first record of a crane, Proictinia was more closely related to the Everglade Kite, Gruiformes, and additional specimens of the fossil hawk, Bu- Rostrhamus sociabilis, and that P.
  • Geology of Northeastern New Mexico, Union and Colfax Counties, New Mexico: a Geologic Summary Kate E

    Geology of Northeastern New Mexico, Union and Colfax Counties, New Mexico: a Geologic Summary Kate E

    New Mexico Geological Society Downloaded from: https://nmgs.nmt.edu/publications/guidebooks/70 Geology of Northeastern New Mexico, union and Colfax Counties, New Mexico: A Geologic Summary Kate E. Zeigler, Frank C. Ramos, and Matthew J. Zimmerer, 2019, pp. 47-54 in: Geology of the Raton-Clayton Area, Ramos, Frank; Zimmerer, Matthew J.; Zeigler, Kate; Ulmer-Scholle, Dana, New Mexico Geological Society 70th Annual Fall Field Conference Guidebook, 168 p. This is one of many related papers that were included in the 2019 NMGS Fall Field Conference Guidebook. Annual NMGS Fall Field Conference Guidebooks Every fall since 1950, the New Mexico Geological Society (NMGS) has held an annual Fall Field Conference that explores some region of New Mexico (or surrounding states). Always well attended, these conferences provide a guidebook to participants. Besides detailed road logs, the guidebooks contain many well written, edited, and peer-reviewed geoscience papers. These books have set the national standard for geologic guidebooks and are an essential geologic reference for anyone working in or around New Mexico. Free Downloads NMGS has decided to make peer-reviewed papers from our Fall Field Conference guidebooks available for free download. Non-members will have access to guidebook papers two years after publication. Members have access to all papers. This is in keeping with our mission of promoting interest, research, and cooperation regarding geology in New Mexico. However, guidebook sales represent a significant proportion of our operating budget. Therefore, only research papers are available for download. Road logs, mini-papers, maps, stratigraphic charts, and other selected content are available only in the printed guidebooks.
  • New Mexico Geological Society 2014 Spring Meeting

    New Mexico Geological Society 2014 Spring Meeting

    NEW MEXICO GEOLOGICAL SOCIETY 2014 SPRING MEETING Friday, April 11, 2014 Macey Center New Mexico Institute of Mining and Technology Socorro, New Mexico TABLE OF CONTENTS Schedule of Events ...................................................... ………2 Abstracts arranged alphabetically by first author . ……….9 NMGS EXECUTIVE COMMITTEE President: Virginia McLemore Vice President: Mary Dowse Treasurer: David Ennis Secretary: Matthew Heizler Past President: Greg Mack 2013 SPRING MEETING COMMITTEE General Chair: Nelia Dunbar Technical Program Chair: Greg Mack Registration Chair: Connie Apache ON-SITE REGISTRATION: Connie Apache and Angelo Medina WEB SUPPORT: Adam Read ORAL SESSION CHAIRS: Jeffrey Amato, Dan Koning, Greg Mack, Frank Ramos, Thomas Williamson 1 Schedule of Events –NMGS Annual Spring Meeting, April 11, 2014 Registration 7:30 am to Noon, Lower Lobby 8:30-8:45 Welcome and Introduction- Auditorium Session 1: Geochronology, Tectonics, and Session 2: Hydrology, Geomorphology, Petrology and Paleosols Auditorium Galena Room Chair: Jeffrey Amato Chair: Dan Koning 8:45 AM - 10:00 AM 8:45 AM - 11:30 AM NEW U-PB ZIRCON GEOCHRONOLOGY DATA HYDROGEOLOGIC CONTROLS ON EARLY SUPPORTING 1.7 GA CRYSTALLIZATION AGE TRAVEL THROUGH THE JORNADA DEL FOR THE HERMIT’S PEAK GRANITE, LAS MUERTO, NEW MEXICO VEGAS RANGE, NEW MEXICO — B. Talon Newton, Trevor Kludt, Ethan — Jennifer Lindline, Danielle Cedillo, and Mamer, and Dave Love Andrew Romero — 8:45 AM - 9:00 AM — 8:45 AM - 9:00 AM RECHARGING THE TULAROSA BASIN 40AR/39AR MUSCOVITE — Ethan A. Mamer, B. Talon Newton, Stacy THERMOCHRONOLOGY AND MONAZITE Timmons, Daniel J. Koning, and Lewis A. Land GEOCHRONOLOGY OF NEW MEXICO — 9:00 AM - 9:15 AM PEGMATITES HYDROLOGIC MODELING OF THE WHITE — Lisa Anne Gaston, Matthew T.
  • Triassic Dinosaurs in New Mexico

    Triassic Dinosaurs in New Mexico

    Lucas, S.G., and Heckert, A.B., eds., 2()(x). Dinosaurs of New Mexico. New Mexico MuseumofNaturnl History and Science Bulletin No. 17. 17 TRIASSIC DINOSAURS IN NEW MEXICO ANDREW B. HECKERTl, SPENCER G. LUCAS2, and ROBERT M. SULLIVAN3 'Deparbnent of Earth & Planetary Sciences, University of New Mexico, Albuquerque, NM 87131-1116; 2New Mexico Museum of Natural History and Science, 1801 Mountain Road NW, Albuquerque, NM 87104; 3Section of Paleontology and Geology, The State Museum of Pennsylvania, Third and North Streets, Harrisburg, PA 17108-1026 Abstract-New Mexico is unique among Western states in possessing an extensive and diverse record of Triassic dinosaurs. This record is the world's most complete for understanding Triassic theropod evolution from Adamanian (latest Carnian) through Apachean (latest Norian-Rhaetian) time. New Mexico's recoid of Triassic theropods includes superposed faunas of Adamanian and Revueltian age, as well as the Coelophysis LagersHitte of Apachean age. Holotype theropods from the Triassic of New Mexico include Coelophysis bauri (Cope), Eucoelophysis baldwini Sullivan and Lucas, and Gojirasaurus quayi Carpenter. Theropod ichnofossils include a Single track from strata of Adamanian age in west­ central New Mexico and numerous tracksites of Apachean age in the east-central and northeastern part of the state, all of which are dominantly theropod tracks assigned to the ichnogenus Grallator. Other Triassic dinosaurs from New Mexico include isolated ornithischian teeth of both Adamanian and Revueltian age. Adamanian teeth include those assigned to Tecovasaurus from the Bluewater Creek Formation of west-central New Mexico and a diverse fauna, including a potentially new taxon, from the Los Esteros Member of the Santa Rosa Formation in north-central New Mexico.
  • Vertebrate Trace Fossils from Arizona with Special

    Vertebrate Trace Fossils from Arizona with Special

    Heckert, A.B., and Lucas, S.G., eds., 2005, Vertebrate Paleontology in Arizona. New Mexico Museum of Natural History and Science Bulletin No. 29. 158 VERTEBRATE TRACE FOSSILS FROM ARIZONA WITH SPECIAL REFERENCE TO TRACKS PRESERVED IN NATIONAL PARK SERVICE UNITS AND NOTES ON THE PHANEROZOIC DISTRIBUTION OF FOSSIL FOOTPRINTS ADRIAN P. HUNT1, VINCENT L. SANTUCCI2 and SPENCER G. LUCAS1 1New Mexico Museum of Natural History, 1801 Mountain Road NW, Albuquerque, NM 87104-1375; 2National Park Service, McLean, VA 22101 Abstract—Arizona has significant tetrapod ichnofaunas, many of which are from National Park Service units, including traces from the Pennsylvanian Wescogame Formation, Permian Coconino and DeChelly sandstones and Hermit Formation, Triassic Moenkopi Formation and Blue Mesa and Sonsela Members of the Petrified Forest Formation, Jurassic Navajo Sandstone, Cretaceous Toreva Formation, Miocene Bidahochi Formation and the Pliocene Verde Formation. Arizona ichnofaunas are significant for several reasons as they include the first large Paleozoic ichnofaunas described, westernmost Pennsylvanian tetra- pod tracks in North America, largest collected and described sample sizes of trace fossils from eolianites, the most significant Early-Middle Triassic tetrapod ichnofaunas in the New World, and a Cretaceous dinosaur tracksite with multiple tail drags. Other vertebrate trace fossils from Arizona include coprolites from the Moenkopi Formation and Chinle Group and late Cenozoic cave deposits, putative nests from the Chinle Group and numerous middens