Alycia L. Stigall, PhD    

Dr. Stigall's research focuses on two primary areas of investigation: (1) elucidating the interaction between paleobiogeography, paleoecology, and macroevolution during episodes of biotic overturn, Paleozoic brachiopods are the main taxon of interest in this line in inquiry and (2) phylogenetic and taphonomic analysis of evolutionary patterns in Brachiopoda and Crustacea, particularly Spinicaudata ("Conchostracans").  Dr. Stigall's research program emphasizes developing quantitative methods of analysis, particularly developing applications of GIS methods for use in paleobiogeography, phylogenetic reconstruction, and paleobiologic inferences based on phylogenetic hypotheses. The overarching goal of these lines of research is to better constrain the long-term effects of invasive species on biodiversity change, a topic of concern for mitigating the modern biodiversity crisis. Dr. Stigall is also actively engaged in digitizing of museum collections and developing outreach tools for educators, avocational paleontologists, and the general public. For more on Dr. Stigall click here or her research program click here.

  Graduate Students  
  lam   Adriane Lam
MS Candidate, expected completion Spring 2015

Adriane earned her BS in Geology from James Madison Univeristy, where she conducted research on foraminifera and oceanograhy. She joined the lab in Fall 2013 with the intent to expand her current research skills into the Ordovician. For her thesis, Adriane is examining geologic and biologic drivers of migration events in the Late Ordovician of Laurentia --encompassing the Richmondian Invasion in the Cincinnati region and aspects of the Hiscobeccus exapansion from Laurentia to Baltica. She was awarded funding from the Dry Dredgers and Paleontological Society for her thesis research. Adriane presented her research at the 2014 SE regional GSA and IGCP 591 Annual meeting in Tartu, Estonia. During the 2014-2015 academic year, Adriane is leading the Ordovician Atlas efforts as an RA.

Trubovitz   Sarah Trubovitz
MS Candidate, expected completion Spring 2016

Sarah joins the Stigall lab in Fall 2014 from California. Sarah brings a unique experience set including an undergraduate degree focused on Russian literature from UC Santa Cruz and two summers as a park ranger at Crater Lake National Park. Sarah's thesis research will likely focus on diversity and speciation dynamics.

  Undergraduate Students  
  Glasgow   Mackenzie Glasgow
BS Geology, expected completion Summer 2015

Mackenzie joined the lab in Summer 2014 as part of the Ordovician Atlas team. She is working mainly as a content development specialist, tasked with generating content for the Digital Atlas of Ordovician Life project. In addition,Mackenzie will be working to develop 3D models of specimens using microCT technology.

Henderson   Tim Henderson
BS Geology, expected completion Summer 2015
Tim joined the lab in Summer 2014 as part of the Ordovician Atlas team. Tim is working mainly as a content development specialist, primarily tasked with generating content for the Digital Atlas of Ordovician Life project.
Parker   Wesley Parker
BS Geology, expected completion Summer 2015

Wesley joined the lab for the 2013-2014 academic year as a content development specialist, primarily tasked with generating content for the Digital Atlas of Ordovician Life project. During this time, Wes decided that mollusks were amazing and that he would pursue a senior thesis on molluscan taphonomy in the Late Ordovician deposits of the Cincinnati Arch. Wes, an aspiring world traveler, spent the summer of 2014 in New Zealand as an oceanography intern.


Payne   Tyler Payne
BS Geology, expected completion Summer 2015

Tyler has been assisting with the Ordovician Atlas project since Spring 2014. His primary contributions are to background research and content development for species pages.




Zezsuit   Zoe Zeszut
BS Geology & BSC Integrated Media, expected completion Summer 2015

Zoe joined the lab in Summer 2014 as a web design and content development specialist for the Ordovician Atlas project. Zoe will be overseeing the incorporation of interactive locality maps within species pages.



Bauer   Jennifer Bauer, MS 2014  
For her thesis, Jen examined evolution within the Eochontes-Thaerodonta species complex using morphometric, phylogenetic, and biogeographic techniques. Jen recieved funding from the Yale Peabody Museum and Cincinnati Dry Dredgers to support her research. Her excellence in teaching at Ohio University was recognized at both the university and department levels. During the 2013 academic year, Jen led the digitization efforts for the PaleoNiches Project and oversaw the development of the Ordovician Atlas website. Jen presented her thesis work at the 2013 Annual GSA meeting, the 2014 SE GSA regional meeting, and the IGCP 591 Annual meeting in Tartu Estonia. The results of her MS research will be published in the Estonian Journal of Earth Sciences and Palaeontology. Following graduation, Jen joined Collin Sumrall's lab at the University of Tennesee to continue her phylogenetic studies as a echinoderm-focused PhD student.
ahuja Robert Ahuja, BS Communication expected 2015
  Bobby worked in the lab during the 2013-2014 academicyear as the lead imaging specialist and website guru for the Digital Atlas of Ordovician Life project
Hermans   Daniel Hermanns, BS 2014  
  During the 2013-2014 academic year, Daniel worked on the Ordovician Atlas project as a content development specialist, primarily tasked with generating content for the Digital Atlas of Ordovician Life project.
hannah   Hannah-Maria Brame, MS 2013  
  Hannah focused her thesis research on niche modeling in Cincinnatian bryozoa, crinoids, and trilobites (the non-brachiopods) to examine whether niche stability patterns are constant across clades and how species niche evolution affects community stability. Hannah earned funding from both the Geological Society of America and the Dry Dredgers to support her research. She also won the Departmental award for most oustanding TA in 2012 and oustanding graduate student in 2013. During the 2012-13 academic year, Hannah lead the Cincinnatian digitization efforts during which time she facilitated the incoporation of the entire Kallmeyer collection into the Specify database, presented several georeferencing workshops,and generated almost all of hte content for the bryozoan pages in the Digital Atlas of Ordovician Life. Hannah's thesis research was presented at two IGCP meetings, one regional GSA meeting, and two annual GSA meetings. Her thesis research is published in Paleobiology. Hannah currently holds a geoscience position in Columbus, Ohio.
cody   Cody Contner, BS 2013  
Cody participated in the digitization efforts of the Jack Kallmeyer collection during the 2012-2013 academic year as a data entry wizard for the digitization of Cincinnatian invertebrate collections. Cody is employed as a geologist in Cincinnati, Ohio.
diane   Diane Estes, BS 2013  
Diane's initial role in the research group was to assist Hannah Brame as her field assistant during the summer of 2012. During the 2012-2013 acadmeic year, Diane worked in the lab as a data entry specialist for the digitization of Cincinnatian invertebrate collections. She is now working as a geoscientist in Cincinnati, Ohio.
davey   David Wright, MS 2012  

Davey's MS thesis, "Macroevolution and Paleobiogeography of Middle to Late Ordovician Brachiopods: A Phylogenetic Biogeographic Approach," used phylogenetic systematics and biogoegraphy to investigate dispersal patterns in Late Ordovician brachiopods, Hebertella, Plaesiomys, and Glyptorthis. Davey earned grants from the Yale Peabody Museum of Natural History and Cincinnati Dry Dredgers and a fellowship from the OHIO Center for Ecology and Evolutionary Studies to support his thesis research. Davey presented his MS research at the 2011 and 2012 Annual GSA Meetings and the 2012 North-Central regional GSA. His thesis work will result in three publicaitons. Following graduation, Davey moved down the road to the Ohio State University, where he is pursuing a PhD in BIll Ausich's lab. Davey's thesis work was published as three articles in PLoS One, Journal of Paleontology, and Journal of Sysemtatic Paleontology.

  Sierra Isard, BS 2012  

Sierra joined the lab as a research assistant for the 2011-2012 academic year where she will be assisted with photography, specimen analysis, and outreach related primarily to the Cincinnatian biogeography project. Following graduation, Sierra pursued an MS in structural geology at the University of Iowa.



malizia   Richard Malizia, MS 2011  
  Rich's thesis is titled "Analyzing niche stability in Late Ordovician articulated brachiopods during the Richmondian Invasion." His research focused on using GIS techniques to analyze changes in ecological niches of brachiopod species through time in the rocks around Cincinnati, Ohio. This research addressed the relative constancy of a species' niche in geologic time, which has implications for both evolutionary theory and understanding changes to modern species due to climate change. Rich has recieved a GSA Grant-in-Aid and an OHIO Center for Ecology and Evolutionary Studies Fellowship to support his research. His thesis work was published in Palaeogeography, Palaeoclimatology, Palaeoecology. Following graduation, Rich returned to his beloved home state of Pennsylavnia where he is employed in the environmental field at ARCADIS.
neha   Neha Gupta, BS 2011  

Neha worked in our lab from September 2009 to June 2011 cataloging the Kallmeyer Collection Cincinnatian fossil collection, literature research, and specimen photography. Following completion of her BS in Geological Sciences in June 2011, Neha earned an MS in Hydrogeology (2013) in our deparment. Neha works as an environmental geologist in southern California.



dudei   Nicole Dudei, MS 2009  
  Nikki completed her master's thesis,"The impact of the Richmondian Invasion on paleobiogeographic distribution of taxa in the Late Ordovician C4 sequence (Richmondian Stage, Cincinnati, Ohio) including a comparison of range reconstruction methods" in June 2009. In Nikki's thesis research, she developed a GIS technique to model species ranges using the Spline tool as well as used genetic algorithm techniques to analyze the early stage of the Late Ordovician Richmondian Invasion by modeling the ecological niches of articulate brachiopods in the Oregonia Formation and equivalents in the Cincinnati, Ohio region. Nikki presented the results of her thesis research at at the 2008 Annual GSA meeting and the 2009 NAPC meeting. She earned a grant from the Geological Society of America to support her work, and part of her thesis was published in Palaeogeography, Palaeoclimatology, Palaeoecology. Nikki is employed by ARCADIS in Wisconsin.
swisher   Robert Swisher, MS 2009

Rob completed his master's thesis,"Paleobiogeographical and evolutionary analysis of Late Ordovician C5 sequence brachiopod species with special reference to rhynchonellid taxa" in June 2009. Rob's thesis research assess how paleoenvironmental parameters affect where species lived and the quality of preservation in the Waynesville, Liberty, and Whitewater Formations of the Ohio, Indiana, Kentucky region. He also conducted a phylogenetic analysis of species within the genera Hypsiptycha, Hiscobeccus, and Lepidocyclus, in which he defined two new genera. Rob earned funding from the Geological Society of America to fund his research, and presented results at the 2008 Annual GSA meeting and the 2009 NAPC meeting. Rob moved to Oklahoma University to begin in PhD with Steve Westrop on Ordovician trilobites in August 2009.

brad   Bradley Walls, MS 2009
  Brad completed his master's thesis, "Quantitative Palebiogeography of Maysvillian (Late Ordovician) Brachiopod Species of the Cincinnati Arch: a Test of Niche Modeling Methods for Paleobiogeographic
Reconstruction" in May 2009. His research combined sedimentology and paleontology to implement and ground truth methods of ecological niche modeling in brachiopod species of the Late Ordovician (Maysvillian) Corryville and Mount Auburn Formations and equivalents in the Cincinnati Arch region. Brad earned grants from the Geological Society of America and the Paleontological Society to support his research. He presented results at two Annual GSA meetings and the 2009 NAPC, and has published his thesis work in Palaeogeography, Palaeoclimatology, Palaeoecology and Paleontological Contributions. Brad now works as a petroleum geologist for Weatherford Laboratories in Houston, Texas.
emily   Emily Callahan, BS 2009

Emily joined the lab as an undergraduate research assistant from September 2008 to May 2009. During the course of hte year, Emily helped out in various capacities including leading the efforts to catalog the newly acquired "Kallmeyer Collection" of over 7000 Cincinnatian fossils. In summer 2009, Emily completed her senior honors thesis, "Paleoecology of the Cincinnatian Series (Upper Ordovician): A study of diversity and community structures". Emily is currently employed at Ohio State University.


  Kaitlin Clare Maguire, MS 2008  
  Kaitlin completed her master's thesis, "Paleobiogeography of Miocene to Pliocene Equinae of North America: A phylogenetic biogeographic and ecological niche modeling approach," in May 2008. For her research, she integrated analyses of evolutionary patterns in horses with sedimentological and paleoclimatic proxies, such as paleosol distribution to discern causes of biogeographic distribution and shifts during the Miocene radiation of the horses. Kaitlin presented her research at both national and regional GSA meetings and published her thesis results in two journal articles. Following graduation, Kaitlin earned her PhD (2013) in vertebrate paleontology at University of California, Berkeley with Tony Barnosky. She is currently a post-doctoral researcher at UC-Merced in the Blois lab.
  Jacqueline (Smith) Koepfler, BS Anthropology,2008

Jackie worked as a critical member of our lab group during the 2007-2008 academic year. Jackie contributed to the Cincinnatian brachiopod GIS project by handling data input, uploading data to the Paleobiology Database, and began creation of a outreach website. Following graduation, Jackie worked with AmeriCorp for in the Reno, Nevada area and is now enrolled in the Master's of Environmental Studies Program at OU.



    Kristen Everman, BS 2007  
    Kristen completed her senior thesis, "Characterizing Jurassic Spinicaudata of Antarctica: Systematic
and Paleoecological Implications," in Spring 2007. As part of her research, Kristen earned grant funding from the North Central Section of the Geological Society of America and the Ohio University Provost's Undergraduate Research Fund. She presented the results of her thesis at the North Central-South Central Joint Sectional Meeting of the Geological Society of America Meeting in Lawrence, Kansas where she was awarded the Outstanding Undergraduate Oral Presentation Award.
    Brandon Klingensmith, MS 2011    

Brandon defended his MS thesis, "GIS-based biogeography of Cincinnatian (Upper Ordovician)
brachiopods with special reference to Hebertella," in June 2007. His research involved an innovative application of GIS methods and the first species-level phylogeny of a genus of Ordovician brachiopods. Brandon acquired funding from the Geological Society of America for his project and presented the results of his research at regional and national GSA meetings. Brandon currently works for Frac Tec Oilfield Services, Ltd. in Pennsylvania.




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