Dr. Bart's field of research includes Ecology and Systematics of Freshwater Fishes and Amphibians

My research interests include Geochronology, Isotope Geochemistry, and Paleoclimate

Conference Abstracts/Oral Presentations

Steponaitis, E. (2015) Speleothem and lacustrine carbonate records of hydrologic change in the Bonneville Basin, UT. Gary C. Comer Abrupt Climate Change Conference, Soldiers Grove, WI.

Steponaitis, E., McGee, D., Quade, J. (2014) Improved Stratigraphic Interpretation of Dense Lacustrine Carbonates from Lake Bonneville, UT. American Geophysical Union Fall Meeting, San Francisco, CA.

Steponaitis, E., McGee, D., Quade, J., Andrews, A., Edwards, R.L., Hsieh, Y., Broecker, W.S., Cheng, H., N.S. (2013) High-resolution records of Bonneville Basin paleohydrology offer new insights into changing atmospheric circulation patterns over North America from 26 ka through the Holocene. Geophysical Union Fall Meeting, San Francisco, CA.

Poster Presentations

Steponaitis, E., McGee, D., Quade, J., Edwards, R.L., Broecker, W.S., Cheng, H., Reiners, P.W., Evenson, N.S. (2012) Constraining water balance in the Bonneville Basin during the last glacial period and deglaciation using 87Sr/86Sr and δ18O of lacustrine carbonates. American Geophysical Union Fall Meeting, San Francisco, CA.

Steponaitis, E. and Keigwin, L. (2009) Decadal to Millenial Scale Climate Variability in the Gulf of Maine. American Geophysical Union Fall Meeting, San Francisco, CA.

Steponaitis, E., Gehrels, G.E., Hemming, S.R., Goldstein, S.L., Van de Fleirdt, T., and Brachfeld, S.A. (2008) Hornblende Ar-Ar and zircon U-Pb evidence for provenance of eastern Weddell Sea glaciogenic sediments, Antarctica. Goldschmidt Conference, Vancouver, BC.

Publications

Steponaitis, E., Andrews, A., McGee, D., Quade, J., Hsieh, Y.-T., Broecker, W.S., Shuman, B.S., Cheng, H. (2015) Mid-Holocene drying of the U.S. Great Basin recorded in Nevada speleothems. Quaternary Science Reviews. doi: 10.1016/j.quascirev.2015.04.011

Zimmerman, S.R.H., Steponaitis, E., Hemming, S.R., Zermeno, P. (2012) Potential for accurate and precise radiocarbon ages in deglacial-age lacustrine carbonates. Quaternary Geochronology, v. 13, p. 81-91, doi: 10.1016/j.quageo.2012.07.003

Dr. Lyons' research interests include Fluvial and Tectonic Geomorphology, surface processes response to climatic and tectonic forcings, and interactions among geological processes and biological evolution.

More detailed descriptions can be found on Dr. Lyons’ research page.

Selected Publications

Harrison EJ, Brocard GY, Gasparini NM, Lyons NJ, Willenbring JK, 2020, Seepage erosion in the Luquillo Mountains, Puerto Rico, relict landscapes. Journal of Geophysical Research: Earth Surface, 125, https://doi.org/10.1029/2019JF005341.

Lyons NJ, Albert JS, Gasparini NM, 2020, SpeciesEvolver: A Landlab component to evolve life in simulated landscapes. Journal of Open Source Software, 5(46), 2066, https://doi.org/10.21105/joss.02066.

Lyons NJ, Val P, Albert JS, Willenbring JK, Gasparini NM, 2019, Topographic controls on divide migration, stream capture, and diversification in riverine life, Earth Surface Dynamics, https://doi.org/10.5194/esurf-2019-55.

Bandaragoda CJ, Castronova A, Istanbulluoglu E, Strauch R, Nudurupati SS, Phuong J, Adams JM, Gasparini NM, Barnhart K, Hutton EWH, Hobley DEJ, Lyons NJ, Tucker GE, Tarboton DG, Idaszak R, Wang S, 2019, Enabling Collaborative Numerical Modeling in Earth Sciences using Knowledge Infrastructure. Environmental Modeling and Software, 120, https://doi.org/10.1016/j.envsoft.2019.03.020.

Lyons NJ, Starek M, Wegmann KW, Mitasova H, 2015, Bank erosion of legacy sediment at the transition from vertical to lateral stream incision, Earth Surface Processes and Landforms, 40(13),https://dx.doi.org/10.1002/esp.3753.

Gallen SF, Wegmann KW, Frankel KL, Hughes S, Lewis RQ, Lyons N, Paris P, Ross K, Bauer JB, Witt AC, 2011, Hillslope response to knickpoint migration in the Southern Appalachians: implications for the evolution of post-orogenic landscapes, Earth Surface Processes and Landforms, 36(9), https://dx.doi.org/10.1002/esp.2150.

My research interests include Tectonic Geomorphology, Extensional Tectonics and Landscape Evolution, Normal Faulting, Rifting, Growth Faulting and Coastal Land Loss

Publications

Young, C., Dawers, N. Hopkins, M. (in prep) Examining relay ramp evolution through paleo-shoreline deformation analysis, Warner Valley fault, Oregon. To be submitted to Lithosphere.

Hopkins, M.C. & Dawers, N.H. (2018) The role of fault length, spacing and overlap in controlling relay ramp fluvial catchment geometry. Basin Research, DOI: 10.1111/bre.12240.

Hopkins, M.C. & Dawers, N.H. (2016) Vertical deformation of lacustrine shorelines along breached relay ramps, Catlow Valley fault, southeastern Oregon, USA. Tectonophysics, 674, 89-100.

Hopkins, M.C. & Dawers, N.H. (2015) Changes in bedrock channel morphology driven by displacement rate increase during normal fault interaction and linkage. Basin Research, 27, 1, 43-59.

Abstracts and Other Presentations

Hopkins, M.C. Lopez, J. & Songy, A. (2018) Subsidence rates from faulting determined by RTK elevation surveys of bridges in Lake Pontchartrain. State of the Coast, New Orleans, LA, Oral Presentation.

Hopkins, M.C. & Dawers, N.H. (2016) The role of fault scale in controlling relay ramp spacing and overlap in the Basin & Range. Geological Society of America Abstracts with Programs. Vol. 48, DOI: 10.1130/abs/2016AM-28634.

Hopkins, M.C. & Dawers, N.H. (2015) Vertical deformation of lacustrine shorelines along breached relay ramps, Catlow Valley fault, southeastern Oregon, USA. Rocky Mountain Rendezvous, AAPG Student Expo, Laramie WY. Poster Presentation.

Hopkins, M.C. & Dawers, N.H. (2014) Deformation of lacustrine shorelines as a tool for understanding fault interaction and relay ramp breaching, Catlow Valley fault, SE Oregon. Geological Society of America Abstracts with Programs. Vol. 46, No. 6, p.777.

Hopkins, M.C., Dawers, N.H., & Gasparini, N.M. (2012) Changes in bedrock channel morphology driven by displacement rate acceleration during normal fault interaction and linkage. Geological Society of America Abstracts with Programs. Vol. 44, No. 7, p.462.

Hopkins, M.C., Dawers, N.H., & Gasparini, N.M. (2012) Changes in bedrock channel morphology driven by displacement rate acceleration during normal fault linkage. American Association of Petroleum Geologists, Student Exposition, Houston, TX, USA. Poster Presentation.

Dr. Yuill's research interests include Geomorphology and watershed hydrology, Sediment transport mechanics and management, Landscape evolution modeling at engineering timescales and physical processes relating to delta restoration

Publications

Yuill, B.T., Walshire, L., Roig-Silvo, C.  in review. Application of an alluvial architecture model to predicting seepage risk in floodplains. Engineering Geology - 6/2012. 

Yuill, B.T. 2012. Predicting Coarse Sediment Transport From Desert Washes With Patchy Bed Material. USACE Technical Report, ERDC/GSL TR-12-17, 29 p. 

Yuill, B.T., Gasparini, N.M. 2011. Hydrologic controls on wash load concentrations in first-ordered   watersheds. Journal of Hydrology, doi: 10.1016/j.jhydrol.2011.09.11  

Yuill, B.T., Nichols, M.H. 2010. Patterns of grain-size dependent sediment transport in low ordered, ephemeral channels. Earth Surface Processes & Landforms. doi: 10.1002/esp.2041. 

Yuill, B.T., Nichols, M.H., Yager, E. 2010. Coarse bed material patch evolution in low-order, ephemeral channels. Catena 81: 126-136. 

Yuill, B.T., Lavoie, D., and Reed, D.J. 2009. Understanding subsidence processes in southern Louisiana. Journal of Coastal Research, SP 54: 23-36.

I am interested in the natural, climatic, and anthropogenic processes that govern coastal systems during times of stasis and change. Specific interests include:

• Determining the balance between subsidence and sedimentation in Barataria Bay.
• Understanding how sedimentary and biogeochemical processes govern patterns of marsh development and loss.
• The role of atmospheric variability in short-term sea level dynamics.
• Radioisotope geochemistry.
• Coastal biogeochemistry.

Publications

Shields, M.R., Bianchi,T.S., Mohrig, D.,Hutchings, J., Kenny, W.F., Kolker, A.S., Curtis, J.H., (2017). Carbon storage in the Mississippi River delta enhancedby environmental engineering. Nature Geoscience. DOI: 10.1038/NGE03044

Coleman, D.J., Kolker, A.S., Johannesson, K.H., (2016) Submarine groundwater discharge and alkaline earth dynamics in a deltaic coastal setting. Hydrology Research. 48(5): 1169-1176

Amer, R., Kolker, A.S., Muscietta, A., (2017). Propensity for erosion and deposition in a deltaic wetland complex: Implications for river management and coastal restoration. Remote Sensing of Environment 199:39-50.

Peyronnin, N. Caffey. R.H., Cowan, J.H., Justic, D., Kolker, A.S., Laska, S. McCorquodale, A., Melanson, E., Nyman, J.A., Twilley, R.R., Visser, J.M., Wilkins, J.G., (2017) Optimizing sediment diversion operations: Working group recommendations integrating complex ecological and social landscapes. Water 9(6): 368; doi:10.3390/w9060368.

Telfeyan, K., Breaux, A., Kim, J., Cable, J.E., Kolker, A.S., Johanesson, K.H. (2017). Arsenic and vanadium biogeochemistry in a deltaic wetland, southern Louisiana, USA Marine Chemistry. 192: 32-48

Z. D., Sericano, J.L., Wade, T.L., Bianchi, T.S., Marcantonio, F., Kolker, A.S., (2016). Composition and depth distribution of hydrocarbons in Barataria Bay marsh sediments after the Deepwater Horizon oil spill. Environmental Pollution 214, 101-113.

Jarrell, E.R., Kolker, A.S., Campbell, C., Blum, M.J., (2016) Brackish marsh plant community responses to regional precipitation and relative sea-level rise. Wetlands. DOI: 10.1007/s13157-016-0769-0.

Leonardi, N., Kolker, A.S., Fagherazzi, (2015). Interplay between river discharge and tides in a delta distributary. Advances in Water Resources. 80: 69-78.

Carey, J.C., Moran, S.B., Kelly, R., Kolker, A.S., Fulweiler, R.W., (2015). The declining role of organic matter in New England salt marshes. Estuaries and Coasts: 1-14.

Rosenheim, B. E., K. M. Roe, B. J. Roberts, A. S. Kolker, M. A. Allison, and K. H. Johannesson (2013), River discharge influences on particulate organic carbon age structure in the Mississippi/Atchafalaya River System, Global Biogeochemical Cycles, 27, doi:10.1002/gbc.20018.     http://onlinelibrary.wiley.com/doi/10.1002/gbc.20018/abstract

Kolker, A.S., Allison, M.A. and Hameed, S., (2011). An evaluation of subsidence rates and sea-level variability in the NorthernGulf of Mexico. Geophysical Research Letters, 38. DOI:10.1029/2011GL049458,2011

Kolker, A.S., Meffert, D.J., Carbonell, A. and Nelson, S.A., (2011). The lessons from a  major climate event: Hurricane Katrina and New Orleans. Published in: International Panel on Climate Change in Cities First Assessment Report, Rosenzweig, C., W.D. Solecki, S.A. Hammer, and S. Mehrotra (Eds.) Cambridge University Press, Cambridge.

Bianchi, T.S., Cook, R.L., Perdue, E.M., Kolic, P.E., Green, N., Zhang, Y., Smith, R.W., Kolker, A.S., Ameen, A.D., King, G., M., Ojwang, L., Schneider, C., and Normand, A., (2011). Impacts of Diverted Freshwater on Dissolved Organic Matter and Microbial Communities in Barataria Bay, Louisiana, U.S.A.: Marine Environmental Research 72:248-257.

Kolker, A.S., Meffert, D.J., Carbonell, A., and Nelson, S.A. (2011). The lessons from a major climate event: Hurricane Katrina and New Orleans. International Panel on Climate Change in Cities First Assessment Report. Cambridge University Press

Bianchi, T.S., Wysocki, L.A., Schreiner, K.M, Filley, T.R., Corbett, D.R., Kolker, A.S. (2011). Sources of terrestrial organic carbon in the Mississippi River plume region: Evidence for the importance of coastal marsh inputs. Aquatic Geochemistry. doi:10.1007/s10498-010- 9110-3

Kolker, A.S., Kirwan, M., Goodbred, S.L. and Cochran, J.K., (2010). Global climate changes recorded in coastal wetland sediments: Empirical Observations lined to theoretical predictions. Geophysical Research Letters, VOL. 37, L14706, doi:10.1029/2010GL043874

Kolker, A.S., Goodbred, S.L., Hameed, S., Cochran, J.K., (2009). High resolution records ofcoastal system responses to Long-term and Short-term Sea Level Variability. Estuarine, Coastal and Shelf Science 84 (4): 493-508

Kolker, A. S., and S. Hameed (2007). Meteorologically driven trends in sea level rise,  Geophysical Research Letters, 34, L23616, doi:10.1029/2007GL031814.

Kolker, A.S. (2005). The Impacts of Climate Variability and Anthropogenic Activities on Salt Marsh Accretion and Loss on Long Island. Marine Sciences Research Center, Stony Brook University, Stony Brook, NY 241 p.

Dr. Kohl's research interests include Tertiary Foraminiferal Biostratigraphy, Applied Micropaleontology, Global Sea Level change and Holocene/Pleistocene shelf-slope instabilities

Publications

Kohl, B., Curry, B.B. and Miller, M., 2021. From Source to Sink: Glacially eroded, Late Devonian algal “cysts” (Tasmanites) delivered to the Gulf of Mexico, during the Last Glacial Maximum. Geological Society of America Bulletin, 133. n. 3-4: 849-866. (Published online, Aug. 24, 2020).

Roberts, H.H. and Kohl, B., 2018. Temperature control of cold-water coral (Lophelia) mound growth by climate-cycle forcing, Northeast Gulf of Mexico, Deep Sea Research Part I, 140: 142-158.

Kohl, B., Fillon, R.H., and Roberts, H.H., 2004. Foraminiferal Biostratigraphy and Paleoenvironments of the Pleistocene Lagniappe delta and related Section, northeastern Gulf of Mexico. In J.B. Anderson and R. Fillon (eds.), Late Quaternary Stratigraphic Evolution of the Northern Gulf of Mexico Basin, SEPM Special Publication 79: 189-216.

Fillon, R.H., Kohl, B., and Roberts, H.H., 2004. Late Quaternary deposition and paleobathymetry at the shelf-slope transition, ancestral Mobile River delta complex, northeastern Gulf of Mexico. In J.B. Anderson and R. Fillon (eds.), Late Quaternary Stratigraphic Evolution of the Northern Gulf of Mexico Basin, SEPM Special Publication 79: 111-141.

Roberts, H.H., Fillon, R.H., Kohl, B., Robalin, J., and Sydow, J., 2004. Depositional architecture of the Lagniappe Delta: Sediment characteristics, timing of depositional events, and temporal relationship with adjacent shelf-edge deltas. In J.B. Anderson and R. Fillon (eds.), Late Quaternary Stratigraphic Evolution of the Northern Gulf of Mexico Basin, SEPM Special Publication 79: 143-188.

Kohl, B., Fillon, R.H., and Roberts, H.H., 2003. Biostratigraphy of a Pleistocene Shelf-Edge Delta System, Northeastern Gulf of Mexico: Recognition of Delta Subenvironments. In H. H. Roberts, N.C. Rosen, R.H. Fillon, J.B. Anderson (eds), Shelf Margin Deltas and Linked down slope Petroleum System: Global Significance and Future Exploration Potential. 23rd Annual Gulf Coast Section SEPM Foundation, Bob F. Perkins Research Conference, Houston TX, Dec. 2003, on CD: 785-816.

Kohl, B., and Robinson, E., 1998. Foraminifera and Biostratigraphy of the Bowden Shell Bed, Jamaica, WI. In, Pliocene Bowden Shell Bed, Southeast Jamaica: Contributions to Tertiary and Quaternary Geology, 35, n. 1-4: 29-46.

Kohl, B., and Roberts, H.H., 1994. Fossil Foraminifera from Four Active Mud Volcanoes in the Gulf of Mexico: In, Geology and biology of modern and ancient submarine hydrocarbon seeps and vents, P. Aharon (ed.): Geo-Marine Letters, 14, n. 2-3: 126-134.

Kohl, B., and Vokes, H.E., 1994. On the Living Habits of Acesta bullisi (Vokes) in Chemo-synthetic Bottom Communities, Gulf of Mexico: Nautilus, 108: 9-14.

Bouma, A. H., Coleman, J.M., Stelting, C.E., and Kohl, B., 1989. Influence of Relative Sea Level Changes on the Construction of the Mississippi Fan: Geo-Marine Letters, 9: 161-170.

Pickering, K., Coleman, J., Cremer, M., Droz, L., Normark, W., Kohl, B., O' Connell, S., Stow, D., and Meyer, A., 1986. A high sinuosity, laterally migrating submarine fan channel-levee-overbank: results from DSDP Leg 96 on the Mississipi Fan, Gulf of Mexico: Marine and Petroleum Geology, 3: 3-18.

Kohl, B., 1986, Late Quaternary planktonic foraminifers from the Pigmy Basin, Gulf of Mexico, Site 619, Deep Sea Drilling Project Leg 96, In Bouma, A., Coleman, J.M., and Meyer, A.W., et al., Initial Reports of the Deep Sea Drilling Project, 96, Washington (U.S. Government Printing Office): 657-670.

Kohl, B., 1985. Early Pliocene Benthic Foraminifers from the Salina Basin, southeastern Mexico: Bulletins of American Paleontology, 88, n. 322: 1-176.

Kohl, B. and Leg 96 Scientific Party, 1985. Biostratigraphy and Sedimentation Rates of the Mississippi Fan. In, Bouma, A.H., Normark, W.R., and Barnes, N.E. (eds.): Submarine Fans and Related Turbidite Systems: Springer-Verlag: 267-273.

Dr. Esposito's research interests include Hydraulics and Sediment Transport In River Deltas, Floodplain Sedimentation, Sedimentary Processes within Vegetation, Numerical Modeling of Coastal Morphology and Coastal Zone Management and Infrastructure

Research Projects

This project, developed in close collaboration with coastal restoration practitioners, aims to establish standardized data collection methodology for monitoring and predicting sediment transport within coastal wetland vegetation. The data collection efforts focus on the turbulence generated by marsh vegetation that can keep fine sediment from depositing even in low velocity environments. Restoration practitioners will be able to use the products of this project to improve predictions of marsh sustainability and better assess the effectiveness of restoration efforts.

Selected Recent Publications

Esposito, C.R., DiLeonardo, D., Harlan, M., & Straub, K.M. (2018). Sediment Storage Partitioning in Alluvial Stratigraphy: The Influence of Discharge Variability. Journal of Sedimentary Research.

Esposito, C. R., Shen, Z., Törnqvist, T. E., Marshak, J., & White, C. (2017). Efficient retention of mud drives land building on the Mississippi Delta plain. Earth Surface Dynamics, 5(3), 387–397. https://doi.org/10.5194/esurf-5-387-2017

Esposito, C. R., Georgiou, I. Y., & Kolker, A. S. (2013). Hydrodynamic and geomorphic controls on mouth bar evolution. Geophysical Research Letters, 40(8), 1540–1545. https://doi.org/10.1002/grl.50333

Straub, K. M., & Esposito, C. R. (2013). Influence of water and sediment supply on the stratigraphic record of alluvial fans and deltas: Process controls on stratigraphic completeness. Journal of Geophysical Research: Earth Surface, 1–14. https://doi.org/10.1002/grl.50333

Dr. Bowles' research interests include Biogeochemistry, Microbial Ecology, Geomicrobiology, Molecular Microbiology and Marine Deep Subsurface Biosphere

Current Projects

• Quantifying marine biomass through geologic time
• Processes related to microbial methane emission in coastal areas
• Modeling the methane hydrate inventory along continental shelves
• Processes and factors limiting marine microorganisms
• Evaluation of the metabolic capacity of deep subsurface fungal communities
• Defining the influence of nutrient regime changes on microbial communities

Selected Publications

Bowles, M.W., Hunter, K.S., Samarkin, V.A., Joye, S.B. (2016) Variations in geochemical signatures and microbial activity within and between diverse cold seep habitats along the lower continental slope of the Gulf of Mexico. Deep Sea Research II. Topical Studies in Oceanography 129, 31-40.

Inagaki, F., Hinrichs, K.-U., Kubo, Y., Bowles, M.W., et al. (2015) Exploring deep microbial life in coal-bearing sediment down to ~2.5 km below the ocean floor. Science 349 (6246): 420-424, doi: 10.1126/science.aaa6882.

Bowles, M.W., Mogollón, J.M., Kasten, S., Zabel, M., Hinrichs, K.-U. (2014) Global rates of marine sulfate reduction rates and implications for subseafloor metabolic activities. Science 344(6186): 889-891, doi: 10.1126/science.1249213.

Bowles, M.W., Nigro, L.M., Teske, A.P., and Joye, S.B. (2012) Denitrification and environmental factors influencing nitrate removal in Guaymas Basin hydrothermally-altered sediments. Frontiers in Microbiology. 3:377, doi: 10.3389/fmicb.2012.00377.

Bowles, M.W., Samarkin, V.A., Joye, S.B. (2011) Improved measurement of microbial activity in deep-sea sediments at in situ pressure and gas concentration. Limnology and Oceanography Methods. 9: 499-506.

Bowles, M.W., Samarkin, V.A., Loftis, K.M., and Joye, S.B. (2011) Weak coupling between sulfate reduction and the anaerobic oxidation of methane in methane-rich seafloor sediments in ex situ incubations. Geochimica et Cosmochimica Acta. 75: 500-519, doi:10.1016/j.gca.2010.09.043.

Bowles, M.W., and Joye, S.B. (2010) High rates of denitrification and nitrate removal in cold seep sediments. ISME Journal 5(3): 565-567, doi:10.1038/ismej.2010.134.

Samarkin, V.A., Madigan, M.M., Bowles, M.W., Casciotti, K.L., McKay, C.P., Joye, S.B. (2010) Abiotic nitrous oxide emission from the hypersaline Don Juan Pond in Antarctica. Nature Geoscience, 3: 341-344, doi:10.1038/ngeo847BJ

Dr. Parsley's research interests include Phylogenetics, functional morphology, paleoecology, and mode and tempo of evolution of Lower Paleozoic primitive Echinodermata; Paleobiology and paleoecology of Lower Paleozoic faunas

Select Publications

Parsley, R. L. and Caster, K. E., 1965, North American Soluta (Carpoidea, Echinodermata),  Bull. American Paleontology, Vol. 49, (No. 221), 109- 174.

Hoffmann, H. J., and Parsley, R. L., 1966, Antennae of Ogygopsis, Journal of Paleontology, vol. 40, no. 1, pp. 209-211, 2 figs.

Parsley, R. L., in Caster, K. E., 1968, Family Belemnocystitidae, Treatise on Invertebrate Paleontology Part S, p. 623.

Parsley, R. L.,1970, Revision of the North American Pleurocystitidae (Rhombifera Cystoidea), Bulletin of American Paleontology., vol. 58, no. 260, pp. 135-213, 10 plates, 8 text-figs.

Parsley, R. L., 1972, The Belemnocystitidae: Solutan Homeomorphs of the Anomalocystitidae, Journal of Paleontology vol. 66, no. 3, pp. 341-347, 1 pl., 1 fig.

Parsley, R. L.,1973, Sedimentary Features on the Surface of Mars as Seen from Mariner 6 and 7 Photographs, NASA Contractor Report -CR- 2184, pp. 1-24.

Parsley, R. L.,1975, Systematics and Functional Morphology of Columbocystis, A Middle Ordovician "Cystidean" (Echinodermata) of Uncertain Affinities, Bulletin American Paleontology, vol. 67, Caster Festschrift, pp. 349-361, 1 text-fig., 2 plates.

Parsley, R. L. and Mintz, L., 1975, North American Paracrinoidea: Ordovician: Paracrinozoa, New: Echinodermata), Bulletin of American Paleont., Vol. 68, pp. 1-115, 13 plates, 10 text-figs.

Parsley, R. L.,1978, Thecal Morphology of the Ordovician Paracrinoid Comarocystites (Echinodermata), Journal of Paleontology, vol. 52, no. 2, pp. 472-479, 1 pl., 4 text-figs.

Parsley, R. L., 1980, Homalozoa. In Echinoderms.  Broadhead, T. W., and Waters, J. A. (eds.) Univ. of Tennessee, Dept. Geol. Sciences Studies in Geology, 3, pp. 106-117.

Parsley, R. L.,1980, Paracrinoidea, in Echinoderms (op. cit.), pp. 139-143.

Parsley, R. L., 1981, Echinoderms from Middle and Upper Ordovician Rocks of Kentucky, U. S. Geological Survey Professional Paper 1066K, pp. K1-K9, 1 pl., 1 text-fig.

Parsley, R. L., 1982, Paracrinoids, in Echinoderm faunas from the Bromide Formation (Middle Ordovician) of Oklahoma, Univ. of Kansas Paleontological Contributions, Monograph 1, pp. 212-223, pls. 23, 24, text-figs. 58, 59.

Sprinkle, J. and Parsley, R. L., 1982, "Golf Ball" Paracrinoid, Univ. of Kansas Paleontological Contributions, Monograph 1,  pp. 224-230, pl. 25, text- fig. 60

Parsley, R. L., 1982, Pleurocystitids, Univ. of Kansas Paleontological Contributions, Monograph 1,  pp. 274-279,  pl. 34, text-figs. 67, 68.

Parsley, R. L., 1982,Eumophocystis, Univ. of Kansas Paleontological Contributions, Monograph 1, pp. 280-288, pls. 35, 36, text-figs. 69-71.

Parsley, R. L., 1982, Homalozoans, Univ. of Kansas Paleontological Contributions, Monograph 1,  pp. 322-323.

Parsley, R. L., 1983,  Treatise on Invertebrate Paleontology: Part T, Echinodermata 2, Crinoidea, Review, Journal of Paleontology, vol. 57, no.1, pp. 193-194.

Lewis R., Sprinkle J., Bailey B., Moffit J., and Parsley R., 1987, Mandalacystis, a new rhipidocystid eocrinoid form the Whiterockian stage (Ordovician) in Oklahoma. Journal of Paleontology, 61:6, pp. 1222-1235, 7 figs.

Parsley, R. L.,1988, Probable feeding and respiratory mechanisms in Aristocystites (Diploporida,, Middle-Upper Ordovician of Bohemia, ČSSR). in Burke, R. D. et. al. (eds.), Echinoderm Biology pp. 103-108, 3 text-figs. Proceedings of the 6th International Echinoderm Conference. Balkema, Rotterdam.

Parsley, R. L.,1988, Feeding and respiratory strategies in Stylophora. in, Echinoderm phylogeny and evolutionary biology. Paul, C. R. C. and  A.B. Smith, (eds.), pp. 347-361, 8 text-figs., Oxford Science Publications and Liverpool Geological Society, (Current Geological Concepts 1), Clarendon Press, Oxford,

Parsley, R. L., 1989, Latex casting of macroinvertebrate fossils. In Paleontechniques, Feldmann, R. M. et. al. eds., pp. 275-281, Paleontological Soceity, Special publication no. 4.

Parsley, R. L.,1990, Aristocystites a recumbent diploporid (Echinodermata) from the Middle and Upper Ordovician of Bohemia, ČSSR. Jour. of Paleontology, vol. 64: 2, pp. 2798-293.

Parsley, R. L.,1991, Review of Selected North American Mitrate Stylophorans (Homalozoa: Echinodermata). Bulletin of American Paleontology. vol. 100,  pp.1- 57, 7 plates, 20 text-figs. Paleontological Research Institution, Itheca, New York.

Gutierrez - Marco, J. C., Melendez, B., Parsley, R. L., Prokop, R. J. and Marek, L. 1992.  Equinodermos (Cystoides, Homalozon, Asterozna).  De afinidades Bohemicas en el Ordovicico del los zonas centroiberica y ossa Morena, Espania.  Publ. Mus. Geol. Estremadura, 1:79-81.

Parsley, R. L.,1994, Mitrocystitid functional morphology, evolution, and their relationships with other primitive classes.  In Echinoderms Through Time, David, Bruno, et. al., eds. pp. 167-177, 7 text figs. Balkema Press, Rotterdam

Marek,L., Parsley, R. L., and  A. Galle, 1997. Functional morphology of hyoliths based on flumestudies. Vestnik (Bulletin of the Czech Geological Survey), 72:4 p.351-358.

Parsley, R. L., 1997, The echinoderm classes Stylophora and Homoiostelea: non Calcichordata.  Paleontological Society Papers, 3, p. 225-248.  The Paleontological Society.

Parsley, R. L.  (1998) Community setting and functional morphology of Echinosphaerites infaustus (Fistuliporita:  Echinodermata) from the Ordovician of Bohemia, the Czech Republic.  Vestník (Bulletin of the Czech Geol. Survey), 73:3: 253-265.

Parsley, R. L.,1998, Taxonomic Revision of the Stylophora,  in Mooi, R. and M. Telford eds. Echinoderms—San Francisco, p. 111-117. Proceedings of the Ninth International Echinoderm Conference.  Belkema Press, Rotterdam .

Parsley, R. L.1999, The Cincta (Homostelea) as Blastozoans  In. Carnavali, M.D.C. and F. Bonasoro eds., Echinoderm Research 1998, p. 369-375. Belkema Press, Rotterdam.

Parsley. R. L 2000, Morphological and Paleontological analysis of the Ordovician ankyroid Lagynocystis: (Stylophora: Echinodermata). Journal of Paleontology. 74:2: 254-262. 

Parsley, R. L., R. Prokop, and K. Derstler, 2000, Kirkocystid ankyroids (Stylophora: Echinodermata) from the Šárka Formation of Bohemia.  Vestnik, (Bull. of the Geol. Survey, Czech Republic), 75:1: 37-45.  

David, B;  Lefebvre, B.; Mooi, R; and  Parsley, R. 2000, Are homalozoans echinoderms?  An answer from the extraxial-axial theory.  Paleobiology 24:4: 529-555.

Yuan, X., S. Xiao, Parsley, R. L., C. Zhou, Z. Chen, and J. Hu, 2002, Towering sponges in an Early Cambrian Lagerstatte: Disparity between nonbilaterian and bilaterian epifaunal tiers at the Neoproterozoic-Cambrian transition.  Geology 30:4: 363-366.

Sumrall, C. D. & Parsley, R. L., 2003, Morphology and biomechanical implications of isolated discocystinid plates (Edrioasteroidea, Echinodermata) from the Carboniferous of North America.  Palaeontology, 46 (1) 113-138. (The Palaeontological  Association), London.

Parsley, R. L. & R.J. Prokop, 2004, Functional morphology and paleoecology of some sessile Middle  Cambrian echinoderms from the Barrandian region of Bohemia.  Bulletin of Geosciences 79:3: 147-156

Parsley, R. L., & Y-l  Zhao, 2004, Functional morphology of brachioles in gogiid and other Lower and Middle Cambrian eocrinoids.  In T. Heinzeller & J. Nibelsick eds. Echinoderms: München:  Proc.11th International Echinoderm Conference. Pp. 479- 484. Taylor & Francis, London

Xiao, Shuhai., Jie Hu, Xunlai Yuan, Parsley, R. L., & Ruiji Cao,  2005,  Articulated sponges from the Early Cambrian Hetang Formation in southern Anhui, South China: Their age andimplications for the early evolution of sponges.   Palaeogeography,  Palaeoclimatology,and Palaeoecology  220:89-117,  Elsevier .

Galle, A & Parsley, R. L.,  2005. Epibiont relationships on hyolithids demonstrated by Devoniantabulates (Anthozoa) and Ordovician trepostomes (Bryozoa). Bulletin of  Geosciences.  80:2: 125-138.

Parsley, R.L. & J. C. Gutierrez- Marco  2005.   Stylophorans in Middle Arenig shallow water siliciclastics: Vizcainocarpus from the Imfout Syncline in Morocco's western Meseta.  Bulletin of  Geosciences. 80:3: 185- 192.

Zhao, Y-L, Zhu, M., Babcock, L.E., Yuan, J-L., Parsley, R. L., Peng, J., Yang, Y., and Wang, Y. 2005, Kaili Biota: A taphonomic window on diversification of metazoans from the basal Middle Cambrian:Guizhou, China. Acta  Geologica Sinica, 79:6: 751 – 765.

Parsley, R. L. & Zhao, Y. 2006.  Long-stemmed  eocrinoids in the basal Middle Cambrian Kaili Biota, Taijaing County, Guizhou Province, China.   Journal of Paleontology, 80: 6: 1058-1071.

Zhao,Y-L, Parsley, R. L., & Peng, J. 2007. Early Cambrian eocrinoids from Guizhou Province, China,  Palaeogeography, Palaeoclimentology, Palaeoecology, 254: 317-327  

Parsley, R. L.& C. Sumrall. 2007. New primitive echinoderm genera from the Bois D'Ark Formation: Lower Devonian (Lochkovian) of Coal County, Oklahoma.  Journal of Paleontology,  81:6:1486- 1493.      

Zhao, Y-L,  Parsley, R. L., & Peng,J. 2008  Basal Middle Cambrian short stalked eocrinoidsfrom the Kaili Biota, Taijiang County, Guizhou Province, China.  Journal of Paleontology,  82 ( 2): 369-376.  

Parsley, R. L. 2009. Morphology, ontogeny and heterochrony in Lower and Middle Cambrian gogiids (Eocrinoidea, Echinodermata) from Guizhou Province, China. Paleontological Journal, 43:11; 1406-1414.  Paleontological Institute, Russian Academy of Sciences, Moscow. 

Zhao, Y-L, Yuan, J-L, Peng, J, Fu, Q-P, Lin, J-p, Yang, R-D, Parsley, R.L., Yang, X-L, Guo, Q-J, and Tai, T-S. (2009).  The Kaili Biota,  p. 68-79, (In) Century of the Brilliant Leap [sic] : Paleontology of China. Pp 1-391, Science Press, Beijing. (In Chinese)

Parsley, R. L. & Y. Zhao (2010). A new turban-shaped gogiid eocrinoid from the Kaili  Formation, (Kaili Biota), Balang, Jianhe County, Guizhou Province, China.  Journal of Paleontology, 84:3:549-553

Zhao, Y., Sumrall, C., Parsley, R. L., and Peng, J. (2010).   Kailidiscus, A new plesiomorphic edrioasteroid from the basal Middle Cambrian Kaili Biota of Guizhou Province, China.  Journal of Paleontology, 84:(4): 668-680. 

James Sprinkle, Ronald L. Parsley, Yuanlong Zhao, and Jin Peng, 2011, Revision of lyracystid  eocrinoids from the Middle Cambrian of South China and Western Laurentia,  Journal of  Paleontology, 85: (2): 250-255

Zhao, Y-L (Editor). 2011. The Kaili Biota: Marine organisms from 508 million years ago. Twenty three authors including R.L. Parsley (individual sections not defined but see p.170-179). Guizhou Publishing Group, 251 pages. (In Chinese).

Parsley,  R. L,  S. Rozhnov and C. Sumrall. 2012. Morphologic and Systematic revision of the Solute  Maennilia estonica (Homoiostelea, Echinodermata) from the Upper Ordovician of Estonia.  Journal of Paleontology, 86:3:462-469

Zamura, S, Lefebvre, B., plus 12 authors including Parsley, R. L.,  Cambrian echinoderm diversity and palaeobiogeography, Geological Society of London. Accepted for publication Sept. 22, 2011.

Parsley, R. L. 2012, Ontogeny, functional morphology, and comparative morphology of lower (Stage 4) an basal Stage 5 Cambrian gogiids , Guizhou Province, China. Journal of Paleontology,  86(4): 569-583.

Parsley, R. L. and Zhao, Y.L. 2012.  Gogiid eocrinoids of the Kaili Biota, Guizhou Province, China, in Cryogenian-Ediacarian to Cambrian Stratigraphy and Paleontology of Guizhou, China, in Zhao et al., eds, Journal of Guizhou University (Natural Science) 29 (Supplement 1):16-22.  

 Zhao, Y., Zhu, M., Peng, J., Yuan, J., Parsley, R. L., Babcock, L. Lin, J-P., Yang, X., Yin, L., Sun,H., and Tai, T. 2012.  The Kaili Biota- An informal review commemorating the 30th anniversary of its discovery.  in Cryogenian-Ediacarian to Cambrian Stratigraphy and Paleontology of Guizhou, China, Zhao et al., eds. Journal of Guizhou University (Natural Science) 29 (Supplement 1):1-9.   

Zhao, Y., Peng, J., Yuan, j., Guo, Q., Tai, T., Yin, L., Parsley, R. L, Yang, Y., Yang, X., and  Zhang, P., 2012. The Kaili Formation and Kaili Biota at the Wuliu-Zengjiayan Section of Guizhou Province, China and proposed Global Standard Stratotype Section and Point (GSSP) of the unnamed Cambrian Series 3, Stage 5. In Cryogenian-Ediacarian to Cambrian Stratigraphy and Paleontology of Guizhou, China. Zhao et al., eds, Journal of Guizhou University (Natural Science) 29 (Supplement 1):108-124.

Parsley, R. L. 2012, Development and functional morphology of sutural pores in early and middle Cambrian gogiid eocrinoids from Guizhou Province, China.  Echinoderms in a Changing World.  Proceedings of the 13th International Echinoderm Conference, University of Tasmania, Hobart, Tasmania.  CRC/Balkema Press, Leiden.