Published Research

The following list includes the scientific publications regarding paleontological resources at Petrified Forest National Park.
 

2021-Present

Reyes, W. A., Parker, W. G., and A. B. Heckert. 2023. A new aetosaur (Archosauria: Pseudosuchia) from the upper Blue Mesa Member (Adamanian: Early-Mid Norian) of the Late Triassic Chinle Formation, northern Arizona, USA, and a review of the paratypothorax Tecovasuchus across the southwestern USA. PaleoBios 40(9), 1-15. https://escholarship.org/uc/item/6q35k21s

Kligman, B. T., Gee, B. M., Marsh, A. D., Nesbitt, S. J., Smith, M. E., Parker, W. G., and M. R. Stocker. 2023. Triassic stem caecilian supports dissorophoid origin of living amphibians. Nature 614, 102-107 (2023). https://doi.org/10.1038/s41586-022-05646-5

Marsh, A. D., Parker, W. G., Nesbitt, S. J., Kligman, B. T., and M. R. Stocker. 2022. Puercosuchus traverorum n. gen. n. sp.: a new malerisaurine azendohsaurid (Archosauromorpha: Allokotosauria) from two monodominant bonebeds in the Chinle Formation (Upper Triassic, Norian) of Arizona. Journal of Paleontology 96(S90). https://doi.org/10.1017/jpa.2022.49

Nesbitt, S. J., Stocker, M. R., Ezcurra, M. D., Fraser, N. C., Heckert, A. B., Parker, W. G., Mueller, B., Sengupta, S., Bandyopadhayay, S., Pritchard, A., and A. D. Marsh. 2021. Widespread azendohsaurids (Archosauromorpha, Allokotosauria) from the Late Triassic of Western USA and India. Papers in Palaeontology 8:e1413.

Haque, Z., Geissmann, J. W., Irmis, R. B., Olsen, P. E., Lepre, C., Buhedma, H., Mundil, R., Parker, W. G., Rasmussen, C. and G. E. Gehrels. 2021. Magnetostratigraphy of the Triassic Moenkopi Formation from the continuous cores recovered in Colorado Plateau Coring Project Phase 1 (CPCP-1), Petrified Forest National Park, Arizona, USA: Correlation of the Early to Middle Triassic strata and biota in Colorado Plateau and its environs. Journal of Geophysical Research: Solid Earth 126:e2021JB021899.

Parker, W. G., Nesbitt, S. J., Irmis, R. B., Martz, J. W., Marsh, A. D., Brown, M. A., M. R. Stocker, and S. Werning. 2021. Osteology and relationships of Revueltosaurus callenderi (Archosauria: Pseudosuchia) from the Upper Triassic (Norian) Chinle Formation of Petrified Forest National Park, Arizona, United States. The Anatomical Record. https://anatomypubs.onlinelibrary.wiley.com/doi/abs/10.1002/ar.24757

Marsh, A. D., Parker, W. G., and Miller, A. E. 2021. Mesozoic paleontology of Grand Canyon National Park: trace fossils, stratigraphy, and regional correlations. Utah Geological Association Special Publication 1:205-220. https://giw.utahgeology.org/giw/index.php/uga-sp/article/view/87/115

Marsh, A. D., Milner, A. R. C., Harris, J. D., Deblieux, D. D., and J. I. Kirkland. 2021. A non-averostran neotheropod vertebra (Dinosauria: Theropoda) from the earliest Jurassic Whitmore Point Member (Moenave Formation) in southwestern Utah. Journal of Vertebrate Paleontology, 41: e1897604.

Parker, W. G., S. J. Nesbitt, A. D. Marsh, Kligman, B. T., and K D. Bader. 2021. First occurrence of Doswellia cf. D. kaltenbachi (Archosauriformes) from the Late Triassic (Norian) Chinle Formation of Arizona and its implications on proposed biostratigraphic correlations across North American during the Late Triassic. Journal of Vertebrate Paleontology 41:e1976196.

Reyes, W. A.., Parker, W. G., and A. D. Marsh. 2021. Cranial anatomy and dentition of the aetosaur Typothorax coccinarum (Archosauria: Pseudosuchia) from the Upper Triassic Chinle Formation of Arizona. Journal of Vertebrate Paleontology 40:e1876080.

Drymala, S. M., Bader, K., and W. G. Parker. 2021. Bite marks on an aetosaur (Archosauria: Suchia) osteoderm: assessing Late Triassic predator-prey ecology through ichnology and tooth morphology. Palaios 36:28-37.

 

2016-2020

Kligman, B.T., Marsh, A.D., Sues, H.-D., Sidor, C.A. 2020. A new non-mammalian eucynodont from the Chinle Formation (Triassic: Norian), and implications for the early Mesozoic equatorial cynodont record. Biology Letters 16:20200631. https://royalsocietypublishing.org/doi/full/10.1098/rsbl.2020.0631

Hegron, A., Stocker, M. R., Marsh, A. D., and S. J. Nesbitt. 2020. Archosauromorphs (Reptilia: Diapsida) from the Lamy Quarry, Garita Creek Formation (Adamanian, Late Triassic), New Mexico, USA. Palaeodiversity 13:135-149. https://bioone.org/journals/Palaeodiversity/volume-13/issue-1/pale.v13.a11/Archosauromorphs-Reptilia--Diapsida-from-the-Lamy-Quarry-Garita-Creek/10.18476/pale.v13.a11.full

Marsh, A.D., and W. G. Parker. 2020. New dinosauromorph specimens from Petrified Forest National Park and a global biostratigraphic review of Triassic dinosauromorph body fossils. PaleoBios 37:1-56. https://escholarship.org/uc/item/01w536hs

Jenkins, X. A., Pritchard, A. C., Marsh, A. D., Kligman, B. T., Sidor, C. A., and K. E. Reed. 2020. Using manual ungual morphology to predict substrate use in the Drepanosauromorpha and the description of a new species. Journal of Vertebrate Paleontology 40:e1810058.

Kligman, B. T., Marsh, A. D., Nesbitt, S. J., Parker, W. G., and M. R. Stocker. 2020. A new trilophosaurid species demonstrates a decline in allokotosaur diversity across the Adamanian-Revueltian boundary in the Late Triassic of western North America. Palaeodiversity 13:25-37. https://bioone.org/journals/Palaeodiversity/volume-13/issue-1/pale.v13.a3/New-trilophosaurid-species-demonstrates-a-decline-in-allokotosaur-diversity-across/10.18476/pale.v13.a3.full

Hayes, R. F., Puggioni, G., Parker, W. G., Tiley, C. S., Bednarick, A. L., and D. E. Fastovsky. 2020. Modeling the dynamics of a Late Triassic vertebrate extinction: the Adamanian/Revueltian faunal turnover, Petrified Forest National Park, AZ, USA. Geology 48:318-322. https://pubs.geoscienceworld.org/gsa/geology/article/48/4/318/579957/Modeling-the-dynamics-of-a-Late-Triassic

Gordon, C. M., Roach, B. T., Parker, W. G., and D. E. G. Briggs. 2020. Distinguishing regurgitates and coprolites: a case study using a Triassic bromalite with soft tissue from the pseudosuchian reptile Revueltosaurus. Palaios 35:111-121.

Gehrels, G. E., Giesler, D., Olsen, P.E., Kent, D.V., Marsh, A.D., Parker, W.G., Rasmussen, C., Mundil, R., Irmis, R.B., Geissman, J.W., and C. Lepre. 2020. LA-ICPMS U-Pb geochronology of detrital zircon grains from the Coconino, Moenkopi, and Chinle Formations in the Petrified Forest National Park (Arizona). Geochronology 2:257-282. https://gchron.copernicus.org/articles/2/257/2020/

Rasmussen, C., Mundil, C., Irmis, R. B., Geisler, D., Gehrels, G. E., Olsen, P. E., Kent, D. V., Lepre, C., Kinney, S. T., Geissman, J. W., and W. G. Parker. 2020. U-Pb zircon geochronology and depositional age models for the Upper Triassic Chinle Formation (Petrified Forest National Park, Arizona) constrained by U-Pb geochronology: implications for Late Triassic paleoecological and paleoenvironmental change. Geological Society of America Bulletin 133:539-558. https://pubs.geoscienceworld.org/gsa/gsabulletin/article/133/3-4/539/588168/U-Pb-zircon-geochronology-and-depositional-age

Formoso, K. K., Nesbitt, S. J., Pritchard, A. C., Stocker, M. R., and W. G. Parker. 2019. A long-necked tanystropheid from the Middle Triassic Moenkopi Formation (Anisian) provides insights into the ecology and biogeography of tanystropheids. Paleontologia Electronica 22.3.73. https://palaeo-electronica.org/content/pdfs/988.pdf

Olsen, P. E., Whiteside, J. H., Kinney, S. T., Milner, A. R. C., Suarez, C. A., and A. D. Marsh. 2019. Fieldtrip for the ICDP-EarthRates CPCP2/EMCT Workshop. St. George Utah.

Kent, D. V., Olsen, P. E., Lepre, C., Mundil, R. Rasmussen, C., Irmis, R. B., Gehrels, G. E., Giesler, D., Geissman, J. W., and W. G. Parker. 2019. Magnetochronology of the entire Chinle Formation (Norian age) in a scientific drill core from the Petrified Forest National Park (Arizona, USA) and implications for global correlations in the Late Triassic. Geochemistry, Geophysics, Geosystems 20:4654-4664. https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019GC008474

Marsh, A. D., Parker, W. G., Langer, M. C., and S. J. Nesbitt. 2019. Redescription of Chindesaurus bryansmalli Long and Murry, 1995 (Dinosauria, Saurischia) from Petrified Forest National Park, Arizona. Journal of Vertebrate Paleontology 39:e1645682.

Stocker, M. R., Nesbitt, S. J., Kligman, B. T., Paluh, D. J., Marsh, A. D., Blackburn, D. C., and W. G. Parker. 2019. The earliest equatorial record of anurans from the Late Triassic of Arizona. Biology Letters 15:20180922. https://royalsocietypublishing.org/doi/full/10.1098/rsbl.2018.0922

Marsh, A. D., Smith, M. E., Parker, W. G., Irmis, R. B., and B. T. Kligman. 2020. Skeletal anatomy of Acaenasuchus geoffreyi Long and Murry 1995 (Archosauria: Pseudosuchia) and its implications for the origin of the aetosaurian carapace. Journal of Vertebrate Paleontology 40(4):e1794885.

Marsh, A. D. 2019. A new record of Dromomeron romeri Irmis et al., 2007 (Lagerpetidae) from the Chinle Formation of Arizona, U.S.A.. PaleoBios 35. https://escholarship.org/uc/item/8w5755sg

Marsh, A. D., Parker, W. G., Stockli, D. F., and J. W. Martz. 2019. Regional correlation of the Sonsela Member (Chinle Formation) using the first U-Pb detrital zircon date from the type Sonsela sandstone bed near Sonsela Buttes, Apache County, AZ. Geosphere 15:1128-1139. https://pubs.geoscienceworld.org/gsa/geosphere/article-abstract/15/4/1128/570397

Gee B. M., Parker, W. G., and A. D. Marsh. 2019. Redescription of Anaschisma (Temnospondyli: Metoposauridae) from the Late Triassic of Wyoming and the phylogeny of the Metoposauridae. Journal of Systematic Palaeontology 18:233-258.

Gee, B. M., and W. G. Parker. 2018. Morphological and histological description of small metoposaurids from Petrified Forest National Park, AZ, USA, and the taxonomy of Apachesaurus. Historical Biology 32.

Parker, W. G. 2018. Anatomical notes and discussion of the first described aetosaur Stagonolepis robertsoni (Archosauria: Suchia) from the Upper Triassic of Europe, and the use of plesiomorphies in aetosaur biochronology. PeerJ 6:e5455. https://peerj.com/articles/5455/?td=tw

Olsen, P. E., Geissman, J. W., Kent, D. V., Gehrels, G. E., Mundil, R., Irmis, R. B., Lepre, C., Rasmussen, C., Giesler, D., Parker, W. G., Zacharova, N., Kuerschner, W. M., Miller, C., Baranyi, V., Schaller, M. F., Whiteside, J. H., Schnurrenberger, D., Noren, A., Shannon, K. B., , O’Grady, R., Colbert, M. W., Maisano, J., Edey, D., Kinney, S. T., Molina-Garza, R., Bachman, G. H., Sha, J., and the CPCP Team. 2018. Colorado Plateau Coring Project, Phase I (CPCP-I): a continuously cored, globally exportable chronology of Triassic continental environmental change from Western North America. Scientific Drilling 24:15-40.

Kent, D.V., Olsen, P.E., Rasmussen, C., Lepre, C., Mundil, R., Irmis, R.B., Gehrels, G.E., Giesler, D., Geissmann, J.W., and W.G. Parker. 2018. Empirical evidence for stability of the 405-kiloyear Jupiter-Venus eccentricity cycle over hundreds of millions of years. Proceedings of the National Academy of Sciences 115:6153-6158. https://www.pnas.org/content/115/24/6153.short

Stefanic, C. M., and S. J. Nesbitt. 2018. The axial skeleton of Poposaurus langstoni (Pseudosuchia: Poposauroidea) and its implications for accessory intervertebral articulation evolution in pseudosuchian archosaurs. PeerJ 6: e4235. https://peerj.com/articles/4235/

Parker, W.G. 2018. Redescription of Calyptosuchus (Stagonolepis) wellesi (Archosauria: Pseudosuchia: Aetosauria) from the Late Triassic of the southwestern United States with a discussion of genera in vertebrate paleontology. PeerJ 6: e4291. https://peerj.com/articles/4291/

Kligman, B. T., Marsh, A. D., and W. G. Parker. 2018. First records of diapsid Palacrodon from the Norian, Late Triassic Chinle Formation of Arizona, and their biogeographic implications. Acta Palaeontologica Polonica 63: 117-127. https://www.app.pan.pl/article/item/app004262017.html

Gee, B. M., and W. G. Parker. 2018. A large-bodied metoposaurid from the Revueltian (late Norian) of Petrified Forest National Park (Arizona, USA). Neues Jahrbuch für Geologie und Paläontologie-Abhandlungen 287: 61-73.

Kligman, B. T., Parker, W. G., and A. D. Marsh. 2017. First record of Saurichthys (Actinopterygii) from the Upper Triassic (Chinle Formation, Norian) of western North America. Journal of Vertebrate Paleontology 37: e1367304.

Gee, B. M., Parker, W. G., and A. D. Marsh. 2017. Microanatomy and paleohistology of the intercentra of North American metoposaurids from the Upper Triassic of Petrified Forest National Park (Arizona, USA) with implications for the taxonomy and ontogeny of the group. PeerJ 5: e3183. https://peerj.com/articles/3183/

Gee, B.M., and W. G. Parker. 2017. A juvenile Koskinonodon perfectus (Temnospondyli, Metoposauridae) from the Upper Triassic of Arizona and its implications for the taxonomy of North American metoposaurids. Journal of Paleontology 91:1047-1059.

Griffin C. T., Stefanic C. M., Parker, W. G., Hungerbühler, A., and M. R. Stocker. 2017. Sacral anatomy of the phytosaur Smilosuchus adamanensis, with implications for eplvic girdle evolution among Archosauriformes. Journal of Anatomy 231: 886-905.

Santucci V. L. 2017. Preserving fossils in the National Parks: a history. Earth Sciences History 36: 245-285.

Baranyi, V., Reichgelt, T., Olsen, P. E., Parker, W. G., and W. M. Kürschner. 2017. Norian vegetation history and related environmental changes: new data from the Chinle Formation, Petrified Forest National Park (Arizona, SW USA). Geological Society of American Bulletin. 130:775-795. https://pubs.geoscienceworld.org/gsa/gsabulletin/article-abstract/130/5-6/775/519602

Martz, J. W., and W. G. Parker. 2017. Revised formulations of the Late Triassic land vertebrate “faunachrons” of western North America: recommendations for codifying nascent systems of vertebrate biochronology; pp. 39-125 in Zeigler, K. E. and W. G. Parker (eds.), Terrestrial Depositional Systems: Deciphering Complexities through Multiple Stratigraphic Methods. Elsevier, Amsterdam.

Zeigler, K. E., Parker, W. G., and J. W. Martz. 2017. The lower Chinle Formation (Late Triassic) at Petrified Forest National Park southwestern USA: a case study in magnetostratigraphic correlations; pp. 237-277 in Zeigler, K. E. and W. G. Parker (eds.), Terrestrial Depositional Systems: Deciphering Complexities through Multiple Stratigraphic Methods. Elsevier, Amsterdam.

Parker, W. G., and J. W. Martz. 2017. Building local biostratigraphic models for the Upper Triassic of western North America: methods and considerations; pp. 1-38 in Zeigler, K. E. and W. G. Parker (eds.), Terrestrial Depositional Systems: Deciphering Complexities through Multiple Stratigraphic Methods. Elsevier, Amsterdam.

Lessner, E. J., Parker, W. G., Marsh, A. D., Nesbitt, S. J., Irmis, R. B., and B. D. Mueller. 2018. New insights into Late Triassic dinosauromorph-bearing assemblages from using apomorphy-based identifications. Paleobios 35. https://escholarship.org/uc/item/4ht19712

Marsh, A. D. 2017. A bigger footprint, a bigger picture. Sojourns 12(1):44-45.

Stocker, M. R., Nesbitt S. J., Criswell, K. E., Parker, W. G., Rowe, T. B., Ridgely, R., and M. A. Brown. 2016. A dome-headed stem archosaur exemplifies convergence among dinosaurs and their distant relatives. Current Biology 26: 1-7. https://www.sciencedirect.com/science/article/pii/S0960982216308600

Riggs, N. R., Oberling, Z. A., Howell, E. R., Parker, W. G., Barth, A. P., Cecil M. R., and J. W. Martz. 2016. Sources of volcanic detritus in the basal Chinle Formation, southwestern Laurentia, and implications for the Early Mesozoic magmatic arch. Geosphere 12: 439-463. https://pubs.geoscienceworld.org/gsa/geosphere/article-abstract/12/2/439/132299

Tweet, J. S., Santucci, V. L., and H. G. McDonald. 2016. Name-bearing fossil type specimens and taxa named from National Park Service areas; pp. 277-288 in Sullivan, R. M. and S. G. Lucas (eds.), Fossil Record 5. New Mexico Museum of Natural History and Science Bulletin 73: 277-288.

Parker, W. G. 2016. Osteology of the Late Triassic aetosaur Scutarx deltatylus (Archosauria: Pseudosuchia). PeerJ 4: e2411. https://peerj.com/articles/2411/

Parker, W. G. 2016. Revised phylogenetic analysis of the Aetosauria (Archosauria: Pseudosuchia): assessing the effects of incongruent morphological data sets. PeerJ 4:e1583. https://peerj.com/articles/1583/
 

2011-2016

Parker, W. G. 2016. Revised phylogenetic analysis of the Aetosauria (Archosauria: Pseudosuchia);assessing the effects of incongruent morphological data sets. PeerJ 4:e1583;doi: 10.7717/peerj1583.

Marsh, A. D. 2015. Time Slices. Sojourns 11(1):18-21.

Nordt, L., Atchley, S., and S. Dworkin. 2015. Collapse of the Late Triassic megamonsoon in western equatorial Pangea, present-day American Southwest. Geological Society of America Bulletin. doi: 10.1130/B31186.1

Ash, S. R. 2014. Contributions to the Upper Triassic Chinle flora in the American southwest. Palaeobiodiversity and Palaeoenvironments 94:279-294.

Ramezani, J., Fastovsky, D. E., and S. A. Bowring. 2014. Revised chronostratigraphy of the lower Chinle Formation strata in Arizona and New Mexico (USA): High-precision U-Pb geochronological constraints on the Late Triassic evolution of dinosaurs. American Journal of Science 314:981-1008.

Parker, W. G., Hungerbühler, A., and J. W. Martz. 2013. The taxonomic status of the phytosaurs (Archosauriformes) Machaeroprosopus and Pseudopalatus from the Late Triassic of the western United States. Earth and Environmental Science Transactions of the Royal Society of Edinburgh 103:265-268.

Reichgelt, T., Parker, W. G., Martz, J. W., Conrad, J. G., van Konijnenburg-van Cittert, J. H. A., and W. M. Kürschner. 2013. The palynology of the Sonsela Member (Late Triassic, Norian) at Petrified Forest NP, Arizona, USA. Review of Palaeobotany and Palynology 189:18-28.

Parker, W. G., and S. J. Nesbitt. 2013. Cranial remains of Poposaurus gracilis (Pseudosuchia: Poposauroidea) from the Upper Triassic, the distribution of the taxon and its implications for poposauroid evolution. Geological Society of London Special Publication Anatomy, Phylogeny, and Paleobiology of Basal Archosaurs 379.

Parker, W. G., Martz, J. W., Zeigler, K, Semken, S., and J. M. Timmons. 2013. Second day road log –from a corner in Winslow, Arizona, through Petrified Forest National Park, to the El Rancho Hotel in Gallup, New Mexico. New Mexico Geological Society Guidebook 64:25-42.

Riggs, N. R., Reynolds, S. J., Lindner, P. J., Howell, E. R., Barth, A. P., Parker, W. G., and J. D. Walker. 2013. The Early Mesozoic Cordilleran arc and Late Triassic paleotopography: the detrital record of Upper Triassic sedimentary successions on and off the Colorado Plateau. Geosphere 9:613-620. doi: 10.1130/GES00860.1

Atchley, S. C., Nordt, L. C., Dworkin, S. I., Ramezani, J., Parker, W. G., Ash, S. R., and S. A. Bowring. 2013. A linkage among Pangean tectonism, cyclic alluviation, climate change, and biologic turnover in the Late Triassic: the record from the Chinle Formation, southwestern United States. Journal of Sedimentary Research 83:1147-1161.

Atchley, S. C., Nordt, L. C., Dworkin, S. I., Cleveland, D. M., Mintz, J. S., and R. H. Harlow. 2013. Alluvial stacking pattern analysis and sequence stratigraphy: concepts and case studies;pp. 109-129 in Dreise, S. G., and L. C. Nordt (eds.), New Frontiers in Paleopedology and Terrestrial Paleoclimatiology, SEPM Special Publication 104.

Chenowith, W. L., 2013. Uranium mining adjacent to the Petrified Forest National Monument, Arizona. New Mexico Geological Society Guidebook 64:126-130.

Howell, E. R., and R. C. Blakey, 2013. Sedimentological constraints on the evolution of the Late Triassic Cordilleran Arc: new evidence from the Sonsela Member of the Chinle Formation, Petrified Forest National Park, AZ. Geological Society of America Bulletin,doi: 10.1130/B30714.1.

Nordt, L., Hallmark, T., Driese, S., and Dworkin, S. 2013. Multi-Analytical approach to characterizing and interpreting the fossil record of soils. Pp. 89-109 in New Frontiers in Paleopedology and Terrestrial Paleoclimatology, Driese, S. and Nordt, L. (eds.). SEPM (Society of Sedimentary Geology) Special Publication 104.

Trendell, A., Atchley, S. C., and L. C. Nordt. 2013. Facies analysis of a probable large-fluvial-fan depositional system: the Upper Triassic Chinle Formation at Petrified Forest National Park, Arizona, U.S.A. Journal of Sedimentary Research 83:873-895.

Trendell, A.M., Nordt, L.C., Atchley, S.C., LeBlanc, S.L. and Dworkin, S.I. 2013. Determining Floodplain Plant Distributions and Populations using Paleopedology and Fossil Root Traces: Upper Triassic Sonsela Member of the Chinle Formation at Petrified Forest National Park, Arizona. Palaios 28:478-490.

Nordt, L. C., Michel, L., and N. J. Tabor. 2013. Prograding distributive fluvial systems –geomorphic models and ancient systems. Pp. 131-148 in New Frontiers in Paleopedology and Terrestrial Paleoclimatology, Driese, S. and Nordt, L. (eds.). SEPM (Society of Sedimentary Geology) Special Publication 104.

Whatley, R. W., Behrensmeyer, A. K., and W. G. Parker. 2013. Revealing new Triassic microvertebrate faunas in the upper Chinle Formation, Petrified Forest National Park, Arizona. Crossroads in Science 40-52.

Martz, J. W., Parker, W. G., Skinner, L., Raucci, J. J., Umhoefer, P., and R. C. Blakey. 2012. Geologic map of Petrified Forest National Park, Arizona. Arizona Geological Survey Contributed Map CR-12-A, 1 map sheet, 1:50,000 map scale, 18 p.

Stocker, M. R. 2012. A new phytosaur (Archosauriformes, Phytosauria) from the Lot's Wife beds (Sonsela Member) within the Chinle Formation (Upper Triassic) of Petrified Forest National Park, Arizona, Journal of Vertebrate Paleontology 32(3):573-586.

Tapanila, L., and E. M. Roberts 2012. The earliest evidence of holometabolan insect pupation in conifer wood. PLoS one 7(2): e31668. doi:10.1371/journal.pone.0031668.

Tarailo, D. A., and D. E. Fastovsky. 2012. Post-Permo-Triassic terrestrial vertebrate recovery: southwestern United States. Paleobiology 38(4):644-633.

Trendell, A., Atchley, S. C., and L. C. Nordt. 2012. Depositional and diagenetic controls on reservoir attributes within a fluvial outcrop analog: Upper Triassic Sonsela Member of the Chinle Formation, Petrified Forest National Park, Arizona. AAPG Bulletin 96:679-707.

Parker, W. G., and J. W. Martz. 2011. Constraining the stratigraphic position of the Late Triassic (Norian) Adamanian Revueltian faunal transition in the Chinle Formation of Petrified Forest National Park, Arizona. Earth and Environmental Science Transactions of the Royal Society of Edinburgh 101:231-260.

Irmis, R. B., Mundil, R., Martz, J. W., and W. G. Parker. 2011. High-precision U-Pb zircon ages from the Chinle Formation of New Mexico, USA: Implications for Late Triassic vertebrate biostratigraphy and the rise of dinosaurs. Earth and Planetary Science Letters 309:258-267.

Loughney, K. H., Fastovsky, D. E., and W. G. Parker. 2011. Taphonomy in blue paleosols from the Petrified Forest National Park, AZ, and its implications for vertebrate biostratigraphy in the Chinle Formation. Palaios 26:700-719.

Dubiel, R. F., and S. T. Hasiotis. 2011. Deposystems, paleosols, and climatic variability in a continental system: the Upper Triassic Chinle Formation, Colorado Plateau, U.S.A;pp. 393-421 in Davidson, S. K., Leleu, S., and C. P. North (eds.) From River to Rock Record: The preservation of fluvial sediments and their subsequent interpretation. SEPM Special Publication 97.

Olsen, P. E., Kent, D. V., and J. H. Whiteside. 2011. Implications of the Newark Supergroup-based astrochronology and geomagnetic polarity time scale (Newark-APTS) for the tempo and mode of the early diversification of the Dinosauria. Earth &Environmental Science Transactions of the Royal Society of Edinburgh 101:201-230.

Ramezani, J., Hoke, G. D., Fastovsky, D.E., Bowring, S. A., Therrien, F., Dworkin, S. I., Atchley, S. C. and L. C. Nordt. 2011. High precision U-Pb zircon geochronology of the Late Triassic Chinle Formation, Petrified Forest National Park (Arizona): Temporal constraints on the early evolution of dinosaurs. Geological Society of America Bulletin 123:2142-2159.

 

2006-2010

Martz, J. W., and W. G. Parker. 2010. Revised lithostratigraphy of the Sonsela Member (Chinle Formation, Upper Triassic) in the southern part of Petrified Forest National Park, northeastern Arizona. PLoS ONE 5(2): e9329. doi:10.1371/journal.pone.0009329

Ash, S. R. 2010. Late Triassic ginkgoaleans of North America, p. 172-185, in Gee, C. T. (ed.) Plants in Mesozoic time. Morphological innovations, phylogeny, ecosystems: Indiana University Press, Indianapolis.

Fischer, J., Axsmith, B. J., & Ash, S. R. 2010. First unequivocal record of the hybodont shark egg capsule Palaeoxyris in the Mesozoic of North America. Neues Jahrbuch für Geologie und Paläontologie, Abh. 255(3):327-344.

Lucas, S. G., Minter, N. J., and A. P. Hunt. 2010. Re-evaluation of alleged bees' nests from the Upper Triassic of Arizona. Palaeogeography, Palaeoclimatology, Palaeoecology 286: 194–201.

Stocker, M. R. 2010. A new taxon of phytosaur (Archosauria: Pseudosuchia) from the Late Triassic (Norian) Sonsela Member (Chinle Formation) in Arizona, and a critical re-evaluation of Leptosuchus Case 1922. Palaeontology 53:997-1022.

Brown, M. A., and W. G. Parker. 2009. Rapid in-house design, construction, and installation of a Triassic paleontology hall, pp. 103-110 in Brown, M. A., Kane, J. F., and W. G. Parker (eds.) Methods in Fossil Preparation: Proceedings of the First Annual Fossil Preparation and Collections Symposium.

Axsmith, B. J. 2009. A new Cynepteris from the Triassic of Arizona: implications for the early diversification of schizaealean ferns. International Journal of Biological Sciences 170:657-665.

Nesbitt, S. J., Stocker, M. R., Small, B. J., and A. Downs. 2009. The osteology and relationships of Vancleavea campi (Reptilia: Archosauriformes). Zoological Journal of the Linnaean Society 157:814-864.

Parker, W. G. 2008. Description of new material of the aetosaur Desmatosuchus spurensis (Archosauria: Suchia) from the Chinle Formation of Arizona and a revision of the genus Desmatosuchus . PaleoBios 28:1-40.

Parker, W. G., and B. J. Barton. 2008. New information regarding the Upper Triassic archosauriform Vancleavea campi based on new material from the Chinle Formation of Arizona. Paleontologia Electronica 11:14A 20p. http://palaeo-electronica.org/2008_3/158/index.html.

Savidge, R. A. 2007. Wood anatomy of Late Triassic trees in Petrified Forest National Park, Arizona, USA, in relation to Araucarioxylon arizonicum Knowlton, 1889. Bulletin of Geosciences 82(4):301-328.

Irmis, R. B. 2007. Axial skeleton ontogeny in the Parasuchia (Archosauria: Pseudosuchia) and its implications for ontogenetic determination in archosaurs. Journal of Vertebrate Paleontology 27(2):350-361.

Irmis, R. B., Parker, W. G., Nesbitt, S. J., and J. Liu, 2007. Early ornithischian dinosaurs: the Triassic Record. Historical Biology 19(1):3-22.

Irmis, R. B., Nesbitt, S. J., Padian, K., Smith, N. D., Turner, A. H., Woody, D., and A. Downs. 2007. A Late Triassic dinosauromorph assemblage from New Mexico and the rise of dinosaurs. Science 317:358-361. DOI: 10.1126/science.1143325.

Lucas, S. G., Hunt, A. P., and J. A. Spielmann, 2007. A new aetosaur from the Upper Triassic (Adamanian: Carnian) of Arizona. New Mexico Museum of Natural History and Science Bulletin 40:247.

Nesbitt, S. J., Irmis, R. B., and W. G. Parker, 2007. A critical reevaluation of the Late Triassic dinosaur taxa of North America. Journal of Systematic Palaeontology 5(2):209-243.

Parker, W. G., 2007. Reassessment of the aetosaur “Desmatosuchuschamaensis with a reanalysis of the phylogeny of the Aetosauria (Archosauria: Pseudosuchia). Journal of Systematic Palaeontology 5(1):41-68.

Axsmith, B. J., 2006. The first Mesozoic record of the enigmatic fossil Palaeoxyris from North America; Chinle Formation, Petrified Forest National Park. Museum of Northern Arizona Bulletin 62:150-151.

Axsmith, B. J., and S. R. Ash, 2006. Two rare fossil cones from the Upper Triassic Chinle Formation in Petrified Forest National Park, Arizona and New Mexico. Museum of Northern Arizona Bulletin 62:82-94.

Hunt A. P., and S. G. Lucas, 2006. Late Triassic tetrapod tracks from Petrified Forest National Park, Arizona. New Mexico Museum of Natural History and Science Bulletin 37:221-225.

Jones, T. P., and S. R. Ash, 2006. Late Triassic charcoal and charcoal-like plant fossils from Petrified Forest National Park, Arizona. Museum of Northern Arizona Bulletin 62:106-115.

Lucas, S. G., and A. P. Hunt, 2006. Reappraisal of “reptile nests” from the Upper Triassic Chinle Group, Petrified Forest National Park, Arizona. New Mexico Museum of Natural History and Science Bulletin 37:155-159.

Mueller, B. D., and W. G. Parker, 2006. A new species of Trilophosaurus (Diapsida: Archosauromorpha) from the Sonsela Member (Chinle Formation) of Petrified Forest National Park, Arizona. Museum of Northern Arizona Bulletin 62:119-125.

Parker, W. G., 2006. The stratigraphic distribution of major fossil localities in Petrified Forest National Park. Museum of Northern Arizona Bulletin 62:46-61.

Parker, W. G., and R. B. Irmis, 2006. A new species of the Late Triassic phytosaur Pseudopalatus (Archosauria: Pseudosuchia) from Petrified Forest National Park, Arizona. Museum of Northern Arizona Bulletin 62:126-143.

Savidge, R. A., 2006. Xylotomic evidence for two new conifers and a ginkgo within the Late Triassic Chinle Formation of Petrified Forest National Park, Arizona. Museum of Northern Arizona Bulletin 62:147-149.

Savidge, R. A., and S. R. Ash, 2006. Arboramosa semicircumtrachea, an unusual Late Triassic tree in Petrified Forest National Park, Arizona, USA. Museum of Northern Arizona Bulletin 62:65-81.

Watson, J., and S. R. Ash, 2006. A rare bipinnate microsporophyll attributable to the Cycadales from the Late Traissc Chinle Formation, Petrified Forest National Park, Arizona. Museum of Northern Arizona Bulletin 62:95-105.

Woody, D. T., 2006. Revised stratigraphy of the lower Chinle Formation (Upper Triassic) of Petrified Forest National Park, Arizona. Museum of Northern Arizona Bulletin 62:17-45.

Last updated: August 4, 2023

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